당신은 주제를 찾고 있습니까 “kaihua longding catechins – Flute Brewing Green Tea“? 다음 카테고리의 웹사이트 Chewathai27.com/you 에서 귀하의 모든 질문에 답변해 드립니다: Chewathai27.com/you/blog. 바로 아래에서 답을 찾을 수 있습니다. 작성자 Mei Leaf 이(가) 작성한 기사에는 조회수 12,898회 및 좋아요 463개 개의 좋아요가 있습니다.
Table of Contents
kaihua longding catechins 주제에 대한 동영상 보기
여기에서 이 주제에 대한 비디오를 시청하십시오. 주의 깊게 살펴보고 읽고 있는 내용에 대한 피드백을 제공하세요!
d여기에서 Flute Brewing Green Tea – kaihua longding catechins 주제에 대한 세부정보를 참조하세요
Introducing our Gong Fu Glass desktop brewer – the flute brewer. In this video Don brews a couple of special 2017 Green teas – Kaihua Long Ding and Taiping Hou Kui.
The flute brewer allows you to brew tea Gong Fu Style in a more minimalist tea set up.
Flute Brewer: https://meileaf.com/p/cl-flbr
Naked Spring: https://meileaf.com/p/tea-nakc
Monkey Picked (Handmade): https://meileaf.com/p/tea-mkhc
—————————————————————————————————–
Shop online: https://meileaf.com/
—————————————————————————————————–
Join us on Instagram
https://www.instagram.com/mei_leaf/
Tweet along with us
https://twitter.com/mei_leaf_tea
Write some friendly graffiti on our Facebook wall
https://www.facebook.com/meileaf
kaihua longding catechins 주제에 대한 자세한 내용은 여기를 참조하세요.
Post 205 Green Tea, EGCG & Catechins | Traveling Leaf
Mature tea leaf have more catechins than the less mature harvests. … Kaihua Longding (green); Zhenghe Baimudan (white) …
Source: travelingleaf.com
Date Published: 2/16/2022
View: 8135
Kaihua Longding Tea – BY-CHINA-TEA ™ Online shop
Harvest: 2021, Ming Qian; Origin: Kaihua, Zhejiang, China; Tea Type: Loose Green Tea (Tribute tea in Qing Dynasty); Caffeine : < 50mg/Cup
Source: buy-china-tea.com
Date Published: 10/5/2022
View: 6274
Green tea – bionity.com
Long Ding: A tea from Kaihua County known as Dragon Mountain. … Joy Bauer, a New York City nutritionist, says [the catechins in green tea] increase levels …
Source: www.bionity.com
Date Published: 12/8/2021
View: 8614
Unlocking the health benefits of green tea
… region include Huiming, Hua Ding, Kaihua Longding, and Gunpowder. … specific types of antioxants, known as flavonos and catechins.
Source: www.ilovegreentea.co.uk
Date Published: 10/1/2021
View: 5200
주제와 관련된 이미지 kaihua longding catechins
주제와 관련된 더 많은 사진을 참조하십시오 Flute Brewing Green Tea. 댓글에서 더 많은 관련 이미지를 보거나 필요한 경우 더 많은 관련 기사를 볼 수 있습니다.
주제에 대한 기사 평가 kaihua longding catechins
- Author: Mei Leaf
- Views: 조회수 12,898회
- Likes: 좋아요 463개
- Date Published: 2017. 8. 12.
- Video Url link: https://www.youtube.com/watch?v=2O9R5SFl854
What tea has the highest catechins?
Green tea contains the highest levels of catechins. Green tea is derived from the leaves of the Camellia sinensis tea plant. It is one of the four true teas, which also include black tea, white tea, and oolong tea.
What is catechin good for?
Catechins are natural antioxidants that help prevent cell damage and provide other benefits. These substances can reduce the formation of free radicals in the body, protecting cells and molecules from damage. These free radicals play a role in aging and many types of diseases.
Which green tea brand has the highest EGCG?
Teavana Green Tea Gyokuro has been found to have the most EGCG but is also one of the most expensive brands. Amongst other, more readily available brands, Celestial Seasoning and Lipton green tea beat Bigelow and Stash brands.
Is catechin the same as green tea?
Catechins are the standard green tea flavonoids. Green tea contains a much higher amount of catechins than black tea or Oolong. As mentioned above, the group of catechins include EGCG, ECG, EGC and EC [10,11,12,13]. Below (Figure 1) are the chemical structure of green tea catechins.
What is the best source of catechin?
High catechin content is reported to be present in fresh tea leaves, apricots, broad beans, black grapes, strawberries, wines, etc. Also, high concentrations of EC are reported to be found in apples, blackberries, broad beans, black grapes, cherries, chocolate, pears, and raspberries (Table 1) [6].
Do catechins help weight loss?
Precious studies have also suggested that tea catechins may help promote weight loss. The current study, published in The Journal of Nutrition, found that consuming a beverage containing green tea catechins (625mg/d) may enhance exercise-induced loss of abdominal fat and improve triglyceride levels.
Are catechins safe?
EFSA concluded that catechins from green tea infusions and similar drinks are generally safe. When taken as food supplements, however, catechin doses at or above 800 mg/day may pose health concerns.
What foods are highest in catechins?
High concentrations of catechin can be found in red wine, broad beans, black grapes, apricots and strawberries; epicatechin concentrations are high in apples, blackberries, broad beans, cherries, black grapes, pears, raspberries, and chocolate; and epigallocatechin, epicatechin gallate, and epigallocatechin gallate are …
What happens when you drink green tea everyday for a month?
According to a study, green tea has shown positive results in reducing the risk of type 2 diabetes. In short, drinking this weight loss elixir- green tea on a daily basis doesn’t immune you from a lot of illnesses and diseases, but it increases your overall life expectancy.
Does EGCG cause liver damage?
Based on safety assessment of green tea products, the European Food Safety Authority recently found that green tea supplements providing more than 800 mg of EGCG per day are linked with a greater risk of liver injury.
How much EGCG per day is safe?
A safe intake level of 338 mg EGCG/day for adults was derived from toxicological and human safety data for tea preparations ingested as a solid bolus dose. An Observed Safe Level (OSL) of 704 mg EGCG/day might be considered for tea preparations in beverage form based on human AE data.
What is the number 1 green tea?
Best Overall: Rishi Tea Sencha Tea
Certified organic, non-GMO, and 100% green tea, Rishi Sencha Green Tea tops our list.
Does coffee have catechin?
Summary. Tea and red wine contained substantial quantities of catechins, whereas low to negligible amounts were found in white wine and commercially available fruit juices, iced tea, and chocolate milk. Catechins were absent from beer and coffee.
How do you take catechin?
While you can consume this catechin in supplement form, the best way to obtain it is by drinking several cups of high-quality, brewed tea each day. This habit has been shown in studies to support a healthy metabolism, help regulate blood pressure and protect the brain from age-related damage.
Where can I get catechins?
- Apples. Apples are a rich source of phytochemicals (or “plant-based” chemicals), including catechins. …
- Blackberries. …
- Dark Chocolate. …
- Red Wine. …
- Cherries. …
- Guava. …
- Pears. …
- Fava Beans.
Does white tea have more catechins than green tea?
Summary Points. White tea comes from the buds and young leaves of the tea plant Camellia sinensis. White tea undergoes the least amount of processing. In general, EGCG, the major constituent of tea catechins, is found in higher concentrations in white tea then green tea.
Is black tea high in catechins?
As reported previously (6–8), TF are low (2–6% of extracted solids) and thearubigens (>20%) are high in black tea, whereas in green tea, catechins are much higher (30–42%), particularly EGCG, which is the most abundant catechin.
What foods are high in catechins?
High concentrations of catechin can be found in red wine, broad beans, black grapes, apricots and strawberries; epicatechin concentrations are high in apples, blackberries, broad beans, cherries, black grapes, pears, raspberries, and chocolate; and epigallocatechin, epicatechin gallate, and epigallocatechin gallate are …
Does chamomile tea have catechins?
Introduction: Chamomile tea (CT) is an herbal tea and is served as a beneficial herbal infusion all over the world. Its major polyphenols constituents and tea-catechins have been shown to have health benefits.
Post 205 Green Tea, EGCG & Catechins
Post 205
Green Tea, EGCG & Catechins
What is the Birthplace of Tea?
CHINA
What Regions in China & Japan is Tea Grown?
China: Provinces of Zhejiang, Shandong, Shanxi, Fujian and Anhui
Japan: District of Shizuoka, a region which lies in the shadow of Holy Mount Fuji. This region is responsible for about half of Japan’s tea. The other important regions are Kagoshima on the Island of Kyushu and Kyoto’s District of Uji
What is EGCG?
EGCG is a compound found in tea leaf. EGCG is abundant in Green Tea Leaf. It is not present in fermented teas, so Black Tea being fully fermented, doesn’t contain these valuable antioxidants. Oolong contains some, especially a Green Oolong (such as Slimming Jade), but not as high as Green. White Tea contains the highest concentration of EGCG’s being the least processed.
What Type of Tea Has the Highest Levels of EGCG’s?
Yes, there is a lot of talk about the health benefits of catechins. But where are they and how can we get the most of them? Here are some fun-facts about EGCG’s. EGCG is found in varying levels in tea leaf exclusively, not herbal. When a tea is fermented, it has less, when it is unprocessed, it has more. Mature tea leaf have more catechins than the less mature harvests. Specifically, the highest EGCG is found in mature green tea leaf. Oolong being partially fermented has less EGCG than green, and Black Teas being fully fermented, have the least. Everyone should drink a cup of green tea every day. It doesn’t have to be caffeinated to capture the EGCG’s. So if caffeine, even though it is low in Green Tea as compared to coffee, is a problem for you, feel free to use a high quality decaffeinated Green Tea. Bear in mind however, fresh high quality tea matters. Old tea that has been sitting around for a long time has less catechins than fresh. The longer it sits around, the less EGCG’s it will contain– so know your source. If you are choosing a decaffeinated tea, select CO2 processing so chemicals are not part of the process and quality is high.
Where Does Tea Come From?
China (about 80% of the world’s tea)
Japan (only about 7%) (Japanese teas are considered more premium and contain higher levels of these compounds than Chinese)
Indonesia (exports more tea than Japan)
Vietnam (exports more tea than Japan)
India
England- many people still actually think tea comes from England- such as English Breakfast, or from Ireland- Irish Breakfast, or even Scotland- Scottish Breakfast– So let’s clear this up right here- No , it is not grown here. They are importers not exporters
Chinese Tea Verses Japanese
The most obvious difference you will find here, and the debate is never-ending, Chinese tea will brew a more yellow infusion and Japanese a more green infusion. Japan only corners about 7% of the world market, even less than Indonesia and Vietnam, yet Japan exports the most premium tea. Japanese tea being the highest quality, costs more than the others, so expect to pay more. The highest quality Matcha, a ceremonial tea powder, comes from Japan. The highest quality white tea, Silver Needle, is also from Japan. Don’t let this distract you however, all green tea is an excellent source of EGCG’s and whether it is from Japan or China, enjoy them both. Japanese tea can be cost prohibitive probably more because they control so little of the world stage as compared to China with a 80% share of all exports. With the current tariffs (March 2018) being placed on China, look for an increase in the cost of tea at the retail level very soon. Since Japan is an allie of the United States, maybe tea from here may become more economical as a result of the political upheaval.
Proven Health Benefits of EGCG & Drinking Tea
Weight Loss
Reduces Heart Disease Risk
Reduces Stroke Risk
Reduces Risk of Diabetes
Rich Levels of Antioxidants Reduces Cancer Risk
Improves and Promotes Brain Health (caffeinated is best for this effect as opposed to decaf)
L-Theanine Found in Green Tea is Nature’s Anti-Depressant (caffeinated green tea carries this amino acid to the brain)
Anti-Inflammatory
Anti-Bacterial
Cleanses the Liver and Improves Liver Health
Reduces Risk of Stomach Cancer
Reduces Risk of Prostate Cancer
Reduces Risk of Colorectum Cancer
Reduces Risk of Esophageal Cancer
Reduces Risk of Lung Cancer
Reduces Risk of Atrophic Gastritis
Weight Loss & Green Tea
So what does Green Tea do for us specifically regarding weight loss? The EGCG compound is an effective stimulator of thermogenesis. This is the biochemical process which takes fat in our body and “burns” it to produce energy (who doesn’t want more energy!)
When should we drink it to derive the more benefits for weight loss? There are two ways; First a Green Tea Rx Extract with high EGCG (90% is excellent) is taken at the start of a meal. Secondly, a regular Green Tea Extract (1 capsule) or 1 cup of Green Tea (2 grams) is consumed 1 hour following a meal. Think of this as a metabolic reset. Any of these items are available on this site. For more ideas for weight loss, see Post 154 for in depth information on Skinny Tea. This tea contains 5 types of tea leaf as well as Guayusa and Yerba Mate.
How Much Tea Do We Need Every Day?
So how much tea do we need? In search of EGCG’s, select a loose leaf green tea in a serving that is not less than 2 grams. If you want more EGCG’s, increase the amount of tea you steep at a serving. For example, the average serving of tea is 1 teaspoon which is about 2 grams. This will in most cases contain about 80mg of EGCG. If you use a tablespoon of tea every day, you are likely to get about 240mg of EGCG’s. This can be spread out throughout the day or simply use more tea when steeping your cup(s).
How To Steep Tea For Maximum Extraction of EGCG’s
Always repeat steep. Most of the caffeine is out in steep number one. As you repeat steep, you are extracting more of the catechins- polyphenols, antioxidants, and anti-cancer compounds in the leaf. Never throw away your tea leaf after one steep, always steep it at least a minimum of 3 times. Yes, it is weaker, but the value is still to be considered. The first steeping should truly follow the rules; if you over-steep the first cup in particular, it will be bitter! The longer you steep this first cup, the greater the amount catechins you are capturing. Catechins are bitter, so pacing yourself with proper steeping will result in a more enjoyable experience and either way, with repeat steeping you will extract all of the benefits of EGCG’s with a few cups. The second steeping is not so important because even if over-steeping, it will not be bitter but you will lose more flavor for that 3rd cup. By cup number three, for certain, just leave the tea in the water. Most people find that with cup number 2 or 3, they leave the tea leaf in the cup and just continue to add water until they discard it. The extra benefit of steeping your tea this way is that you consume more fluid and we all need to get at least 8 glasses of water per day or about 2 liters (just a bit more than 2 quarts). Also, the hotter the water, the better the extraction of EGCG’s from the leaf. We all know by this time that if the water is too hot, the result is a more bitter infusion. Well, that is because you are extracting more of the catechins. So, for the 1st cup, stick to the rules
Brewing time
Every type of tea has an ideal number of minutes for steeping, Green Tea is 3 minutes. The longer the steeping time, the more catechins (and caffeine) are extracted from the leaves. For Japanese green teas are considered for the most part to be premium quality. Because catechins are bitter, the longer you let it steep and the hotter the water, the worse the taste becomes. This is why we always limit steeping in cup number 1 to 3 minutes. After this, the leaf is less touchy. After cup number one, be sure your water it hot and steep accordingly as discussed for maximum extraction of the EGCG’s.
Temperature
Bring filtered water to a boil, remove it from the heat and let it set for a few moments, then add your tea leaf. The ideal temperature is 180 degrees. After the 1st steep, cup number 2 forward, the hotter the water the more catechins you extract from the leaves.
What Green Tea Leaf is Known to Contain the Highest Levels of EGCG?
Most people agree that no specific type of green tea has the exclusive bragging rights to be the highest in EGCG, however, the best indicator is freshness, maturity of the harvest, and quality of storage. If you have to pick, those of high reputation include; matcha, genmaicha, gyokuro, silver needle, houjicha, many white teas and those with more mature harvests. Here is a list in descending order of highest to lowest, of general tea harvests and catechin contents-
Kaihua Longding (green) Zhenghe Baimudan (white) Fuding Premium Silver Needle (white) Zhenghe Silver Needle (white) Huangshan Maofeng (green) Dinggu Dafang (green) Fuding Baimudan (white) Bashan Queshe (green) Mingshan Shihua (green) Tianshan Yinya (green) Wuyuan Mingmei (green) Biluochun (green) Sencha (green) Uji/Yeme Gyokuro (green) Xihu Longjing (green) Linhai Panhao (green) Mengding Ganlu (green) Anji Baicha (green)
Fun Facts and Benefits of Catechins in Green Tea
Kaihua Longding Tea
Terms & Condition
Overview
This website is operated by BUY-CHINA-TEA. Throughout the site, the terms “we”, “us” and “our” refer to BUY-CHINA-TEA. We offers this website, including all information, tools and services available from this site to you, the user, conditioned upon your acceptance of all terms, conditions, policies and notices stated here.
By visiting our site and/ or purchasing something from us, you engage in our “Service” and agree to be bound by the following terms and conditions (“Terms and Conditions”, “Terms”), including those additional terms and conditions and policies referenced herein and/or available by hyperlink. These Terms and Conditions apply to all users of the site, including without limitation users who are browsers, vendors, customers, merchants, and/ or contributors of content.
Please read these Terms and Conditions carefully before accessing or using our website. By accessing or using any part of the site, you agree to be bound by these Terms and Conditions. If you do not agree to all the terms and conditions of this agreement, then you may not access the website or use any services. If these Terms and Conditions are considered an offer, acceptance is expressly limited to these Terms and Conditions.
Any new features or tools which are added to the current store shall also be subject to the Terms and Conditions. You can review the most current version of the Terms and Conditions at any time on this page. We reserve the right to update, change or replace any part of these Terms and Conditions by posting updates and/or changes to our website. It is your responsibility to check this page periodically for changes. Your continued use of or access to the website following the posting of any changes constitutes acceptance of those changes.
Online Store Terms
By agreeing to these Terms and Conditions, you represent that you are at least the age of majority in your state or province of residence, or that you are the age of majority in your state or province of residence and you have given us your consent to allow any of your minor dependents to use this site.
You may not use our products for any illegal or unauthorized purpose nor may you, in the use of the Service, violate any laws in your jurisdiction (including but not limited to copyright laws).
You must not transmit any worms or viruses or any code of a destructive nature.
A breach or violation of any of the Terms will result in an immediate termination of your Services.
General Conditions
We reserve the right to refuse service to anyone for any reason at any time.
You understand that your content (not including credit card information), may be transferred unencrypted and involve (a) transmissions over various networks; and (b) changes to conform and adapt to technical requirements of connecting networks or devices. Credit card information is always encrypted during transfer over networks.
You agree not to reproduce, duplicate, copy, sell, resell or exploit any portion of the Service, use of the Service, or access to the Service or any contact on the website through which the service is provided, without express written permission by us.
The headings used in this agreement are included for convenience only and will not limit or otherwise affect these Terms.
Accuracy, Completeness And Timeliness Of Information
We are not responsible if information made available on this site is not accurate, complete or current. The material on this site is provided for general information only and should not be relied upon or used as the sole basis for making decisions without consulting primary, more accurate, more complete or more timely sources of information. Any reliance on the material on this site is at your own risk.
This site may contain certain historical information. Historical information, necessarily, is not current and is provided for your reference only. We reserve the right to modify the contents of this site at any time, but we have no obligation to update any information on our site. You agree that it is your responsibility to monitor changes to our site.
Modifications To The Service And Prices
Prices for our products are subject to change without notice.
We reserve the right at any time to modify or discontinue the Service (or any part or content thereof) without notice at any time.
We shall not be liable to you or to any third-party for any modification, price change, suspension or discontinuance of the Service.
Products Or Services
Certain products or services may be available exclusively online through the website. These products or services may have limited quantities and are subject to return or exchange only according to our Return Policy.
We have made every effort to display as accurately as possible the colors and images of our products that appear at the store. We cannot guarantee that your computer monitor’s display of any color will be accurate.
We reserve the right, but are not obligated, to limit the sales of our products or Services to any person, geographic region or jurisdiction. We may exercise this right on a case-by-case basis. We reserve the right to limit the quantities of any products or services that we offer. All descriptions of products or product pricing are subject to change at anytime without notice, at the sole discretion of us. We reserve the right to discontinue any product at any time. Any offer for any product or service made on this site is void where prohibited.
We do not warrant that the quality of any products, services, information, or other material purchased or obtained by you will meet your expectations, or that any errors in the Service will be corrected.
Accuracy Of Billing And Account Information
We reserve the right to refuse any order you place with us. We may, in our sole discretion, limit or cancel quantities purchased per person, per household or per order. These restrictions may include orders placed by or under the same customer account, the same credit card, and/or orders that use the same billing and/or shipping address. In the event that we make a change to or cancel an order, we may attempt to notify you by contacting the e-mail and/or billing address/phone number provided at the time the order was made. We reserve the right to limit or prohibit orders that, in our sole judgment, appear to be placed by dealers, resellers or distributors.
You agree to provide current, complete and accurate purchase and account information for all purchases made at our store. You agree to promptly update your account and other information, including your email address and credit card numbers and expiration dates, so that we can complete your transactions and contact you as needed.
For more detail, please review our Returns Policy.
Optional Tools
We may provide you with access to third-party tools over which we neither monitor nor have any control nor input.
You acknowledge and agree that we provide access to such tools ”as is” and “as available” without any warranties, representations or conditions of any kind and without any endorsement. We shall have no liability whatsoever arising from or relating to your use of optional third-party tools.
Any use by you of optional tools offered through the site is entirely at your own risk and discretion and you should ensure that you are familiar with and approve of the terms on which tools are provided by the relevant third-party provider(s).
We may also, in the future, offer new services and/or features through the website (including, the release of new tools and resources). Such new features and/or services shall also be subject to these Terms and Conditions.
Third-Party Links
Certain content, products and services available via our Service may include materials from third-parties.
Third-party links on this site may direct you to third-party websites that are not affiliated with us. We are not responsible for examining or evaluating the content or accuracy and we do not warrant and will not have any liability or responsibility for any third-party materials or websites, or for any other materials, products, or services of third-parties.
We are not liable for any harm or damages related to the purchase or use of goods, services, resources, content, or any other transactions made in connection with any third-party websites. Please review carefully the third-party’s policies and practices and make sure you understand them before you engage in any transaction. Complaints, claims, concerns, or questions regarding third-party products should be directed to the third-party.
User Comments, Feedback And Other Submissions
If, at our request, you send certain specific submissions (for example contest entries) or without a request from us you send creative ideas, suggestions, proposals, plans, or other materials, whether online, by email, by postal mail, or otherwise (collectively, ‘comments’), you agree that we may, at any time, without restriction, edit, copy, publish, distribute, translate and otherwise use in any medium any comments that you forward to us. We are and shall be under no obligation (1) to maintain any comments in confidence; (2) to pay compensation for any comments; or (3) to respond to any comments.
We may, but have no obligation to, monitor, edit or remove content that we determine in our sole discretion are unlawful, offensive, threatening, libelous, defamatory, pornographic, obscene or otherwise objectionable or violates any party’s intellectual property or these Terms and Conditions.
You agree that your comments will not violate any right of any third-party, including copyright, trademark, privacy, personality or other personal or proprietary right. You further agree that your comments will not contain libelous or otherwise unlawful, abusive or obscene material, or contain any computer virus or other malware that could in any way affect the operation of the Service or any related website. You may not use a false e-mail address, pretend to be someone other than yourself, or otherwise mislead us or third-parties as to the origin of any comments. You are solely responsible for any comments you make and their accuracy. We take no responsibility and assume no liability for any comments posted by you or any third-party.
Personal Information
Your submission of personal information through the store is governed by our Privacy Policy. To view our Privacy Policy.
Errors, Inaccuracies And Omissions
Occasionally there may be information on our site or in the Service that contains typographical errors, inaccuracies or omissions that may relate to product descriptions, pricing, promotions, offers, product shipping charges, transit times and availability. We reserve the right to correct any errors, inaccuracies or omissions, and to change or update information or cancel orders if any information in the Service or on any related website is inaccurate at any time without prior notice (including after you have submitted your order).
We undertake no obligation to update, amend or clarify information in the Service or on any related website, including without limitation, pricing information, except as required by law. No specified update or refresh date applied in the Service or on any related website, should be taken to indicate that all information in the Service or on any related website has been modified or updated.
Prohibited Uses
In addition to other prohibitions as set forth in the Terms and Conditions, you are prohibited from using the site or its content: (a) for any unlawful purpose; (b) to solicit others to perform or participate in any unlawful acts; (c) to violate any international, federal, provincial or state regulations, rules, laws, or local ordinances; (d) to infringe upon or violate our intellectual property rights or the intellectual property rights of others; (e) to harass, abuse, insult, harm, defame, slander, disparage, intimidate, or discriminate based on gender, sexual orientation, religion, ethnicity, race, age, national origin, or disability; (f) to submit false or misleading information; (g) to upload or transmit viruses or any other type of malicious code that will or may be used in any way that will affect the functionality or operation of the Service or of any related website, other websites, or the Internet; (h) to collect or track the personal information of others; (i) to spam, phish, pharm, pretext, spider, crawl, or scrape; (j) for any obscene or immoral purpose; or (k) to interfere with or circumvent the security features of the Service or any related website, other websites, or the Internet. We reserve the right to terminate your use of the Service or any related website for violating any of the prohibited uses.
Disclaimer Of Warranties; Limitation Of Liability
We do not guarantee, represent or warrant that your use of our service will be uninterrupted, timely, secure or error-free.
We do not warrant that the results that may be obtained from the use of the service will be accurate or reliable.
You agree that from time to time we may remove the service for indefinite periods of time or cancel the service at any time, without notice to you.
You expressly agree that your use of, or inability to use, the service is at your sole risk. The service and all products and services delivered to you through the service are (except as expressly stated by us) provided ‘as is’ and ‘as available’ for your use, without any representation, warranties or conditions of any kind, either express or implied, including all implied warranties or conditions of merchantability, merchantable quality, fitness for a particular purpose, durability, title, and non-infringement.
In no case shall TEASBAY, our directors, officers, employees, affiliates, agents, contractors, interns, suppliers, service providers or licensors be liable for any injury, loss, claim, or any direct, indirect, incidental, punitive, special, or consequential damages of any kind, including, without limitation lost profits, lost revenue, lost savings, loss of data, replacement costs, or any similar damages, whether based in contract, tort (including negligence), strict liability or otherwise, arising from your use of any of the service or any products procured using the service, or for any other claim related in any way to your use of the service or any product, including, but not limited to, any errors or omissions in any content, or any loss or damage of any kind incurred as a result of the use of the service or any content (or product) posted, transmitted, or otherwise made available via the service, even if advised of their possibility. Because some states or jurisdictions do not allow the exclusion or the limitation of liability for consequential or incidental damages, in such states or jurisdictions, our liability shall be limited to the maximum extent permitted by law.
Indemnification
You agree to indemnify, defend and hold harmless TEASBAY and our parent, subsidiaries, affiliates, partners, officers, directors, agents, contractors, licensors, service providers, subcontractors, suppliers, interns and employees, harmless from any claim or demand, including reasonable attorneys’ fees, made by any third-party due to or arising out of your breach of these Terms and Conditions or the documents they incorporate by reference, or your violation of any law or the rights of a third-party.
Severability
In the event that any provision of these Terms and Conditions is determined to be unlawful, void or unenforceable, such provision shall nonetheless be enforceable to the fullest extent permitted by applicable law, and the unenforceable portion shall be deemed to be severed from these Terms and Conditions, such determination shall not affect the validity and enforceability of any other remaining provisions.
Termination
The obligations and liabilities of the parties incurred prior to the termination date shall survive the termination of this agreement for all purposes.
These Terms and Conditions are effective unless and until terminated by either you or us. You may terminate these Terms and Conditions at any time by notifying us that you no longer wish to use our Services, or when you cease using our site.
If in our sole judgment you fail, or we suspect that you have failed, to comply with any term or provision of these Terms and Conditions, we also may terminate this agreement at any time without notice and you will remain liable for all amounts due up to and including the date of termination; and/or accordingly may deny you access to our Services (or any part thereof).
Entire Agreement
The failure of us to exercise or enforce any right or provision of these Terms and Conditions shall not constitute a waiver of such right or provision.
These Terms and Conditions and any policies or operating rules posted by us on this site or in respect to The Service constitutes the entire agreement and understanding between you and us and govern your use of the Service, superseding any prior or contemporaneous agreements, communications and proposals, whether oral or written, between you and us (including, but not limited to, any prior versions of the Terms and Conditions).
Any ambiguities in the interpretation of these Terms and Conditions shall not be construed against the drafting party.
Changes To Terms and Conditions
You can review the most current version of the Terms and Conditions at any time at this page.
We reserve the right, at our sole discretion, to update, change or replace any part of these Terms and Conditions by posting updates and changes to our website. It is your responsibility to check our website periodically for changes. Your continued use of or access to our website or the Service following the posting of any changes to these Terms and Conditions constitutes acceptance of those changes.
Contact Information
Questions about the Terms and Conditions should be sent to us at [email protected]
Catechins: The Science Behind Why Tea is Good For You
Looking for another justification to drink a cup of tea? Tea catechins are increasingly associated with lowering risk of serious diseases including heart disease and neurological disorders. Increasing research has uncovered the scientific reasons behind why this delightful beverage is so good for you.
Catechins are compounds that can help regulate blood pressure, increase weight loss, and protect the brain from disease. Some of these compounds, including one of the most potent, are found exclusively in tea. Find out more about these healthy little compounds and how a piping hot cup of tea can help you live a healthier life.
What Are Catechins?
Catechins are natural phenols and antioxidants that are also known as flavan-3-ols. The main dietary sources of catechins in the United States and Europe are tea and fruits from the Malinae subtribe of the Rosaceae family. These fruits include apples and pears and are typically defined by a core of several small seeds. Catechins are also found in wine and chocolate.
Not all teas are equal when it comes to tea catechins. Green tea contains the highest levels of catechins. Green tea is derived from the leaves of the Camellia sinensis tea plant. It is one of the four true teas, which also include black tea, white tea, and oolong tea. Green tea leaves are harvested by hand, rolled, and dried to prevent oxidation. Japanese green teas are dried using steam whereas Chinese green teas are pan-fired or roasted. The leaves maintain their natural green color and they also contain high levels of healthy compounds including tea catechins, flavonoids, and tea polyphenols.
Green tea contains high concentrations of four main types of catechins. The green tea catechins are epigallocatechin gallate (EGCG), epicatechin (EC), epicatechin gallate (ECg), and gallocatechin (GC). Some of these catechins including EGCG are found solely in tea. On average, catechins make up around 25% of green tea leaf composition (1). The catechin content of any given type of tea depends largely on where and how the tea is produced. Tea catechins are present not only in true teas, but in some herbal varieties as well. These tea catechins are released when the tea leaves are infused in hot water.
Tea catechins are easily distributed throughout the body when consumed. Catechins may help to prevent oxidative stress that leads to premature aging, cardiovascular disease, and certain types of cancer. Drinking tea may boost overall health and increase lifespan.
Health Benefits of Catechins
1. Aids Weight Loss
Tea is legendary for its weight loss benefits. Most of these health benefits can be attributed to polyphenols and catechins present in teas. Catechins help to speed up metabolism and increase body temperature. This signals the digestive system to convert fat stores into energy more quickly. Tea catechins boost fat burning by stimulating neurotransmitters and chemical processes.
Obesity is one of the leading causes of premature death for Americans. Obesity has been linked to a host of deadly diseases including cardiovascular disease, high blood pressure, and diabetes. Excess fat can also lead to high levels of bad LDL cholesterol known as Low Density Lipoprotein. A study conducted by L.J. Zhao found that obesity may also be linked to osteoporosis (2). Drinking tea can help to lower the risk of obesity related diseases thanks to the fat burning effects of catechins.
A study published in Nutrition Research by N Chen examined the impacts of epigallocatechin on rat with high-fat diets. The rats were given a 15% fat diet for a period of 6 months starting when they were 4 weeks old. The rats were also given either EGCG, green tea, black tea, or water. EGCG was shown to increase lean mass, glucose tolerance, and gene expression. The EGCG also stimulate adipose tissue, which is responsible for storing energy in the form of body fat (3).
A study published in the Journal of Nutritional Biochem examined the effects of green tea extract during moderate activity. The study consisted of 27 healthy males that regularly underwent physical activity. The men were divided into two groups and examined for 7 days. The experimental group took 1200 milligrams of tea catechins and the control group took a placebo. The men who took catechins had significantly increased rates of metabolism and fat burning (4).
Another study published in the Journal of Clinical Nutrition investigated the effects of tea catechins on weight loss. The study started with a group of Japanese men who underwent a 2-week diet run-in period. The men were then divided into two groups based on similar BMI and waist circumference. The researchers conducted a double blind study for 12 weeks while the men consumed tea catechins in varying amounts. The men that consumed higher levels of tea catechins showed significant decreases in waist circumference and body fat (5).
2. Cancer Prevention
Catechins may help to prevent certain types of cancer including breast cancer and prostate cancer. The antioxidant activity of catechins is most commonly credited with these health benefits. Catechins help to protect DNA strands from damage and may inhibit the growth of tumors. In certain conditions, catechins have also demonstrated the ability to induce apoptosis—death—in cancerous cells.
A meta-analysis published in the World Journal of Clinical Oncology analyzed the effects of tea catechins in breast cancer treatment and prevention. Researchers found evidence that green tea significantly reduces the recurrence of breast cancer in patients who consume at least 3 cups per day. They also found a 19% decrease in breast cancer incidence in people who consumed high amounts of green tea (6).
A study published by Dr. Wang in Epidemiology investigated the beneficial effects of tea catechins on liver cancer mortality. The study consisted of 89,789 participants between the ages of 25 and 69. The study classified tea drinkers as individuals who consumed tea at least 4 times per week. The results showed that regular tea drinkers had lower mortality rates compared to people who didn’t drink tea (7).
A systematic review published in Nutrients examined the impacts of tea catechins on breast cancer. Researchers found the EGCG protects DNA from damage that can cause breast cancer. EGCG also helps to suppress tumor proliferation and induce death in certain cancer cells. The results were more pronounced in vivo rather than in vitro (8).
Researchers believe this is due to the low bioavailability of tea catechins. That means that tea catechins aren’t always as easily absorbed in human clinical trials as they are in laboratory studies. Research published in the Journal of Food Science by JH Chung found that tea catechins are more easily absorbed when combined with vitamin C. Another HPLC—high-performance liquid chromatography—analysis found that catechins are more easily absorbed when combined with capsicum vanilloids including spicy peppers. Scientists think that increasing the bioavailability of tea catechins may results in more pronounced cancer prevention effects (9).
3. Protects Brain Health
Catechins in tea may help to protect the brain from serious disorders including Alzheimer’s and Parkinson’s Disease. The antioxidant properties of green tea help to prevent free radicals from invading the body. Free radicals are caused by pollution, excess alcohol consumption, and other environmental factors. Free radicals cause oxidative stress that breaks down normal chemical processes.
A review published in the Journal of Nutritional Biochemistry analyzed the research on tea catechins in Alzheimer’s and Parkinson’s. Researchers found that neurological diseases are often caused by oxidative damage. Catechins can offer protective effects by blocking the free radicals that cause oxidative damage.
Another study published in Experimental Physiology examined the effects of catechins on the brain after traumatic injuries. The study consisted of rats that experienced traumatic brain injuries. Researchers found that catechin treatment resulted in neuroprotective effects. The catechins ameliorated brain damage and protected against motor and cognitive defects after injury. Catechins also exhibited anti-inflammatory properties that helped to protect against brain-swelling (10).
A scientific review published in the Journal of Nutrition researched the effects of catechins such as EGCG on neurodegenerative diseases. The evidence showed that EGCG helps to prevent cognitive decline and prevent neuron damage associated with autoimmune disorders. There was evidence that EGCG prevents the depletion of dopamine associated with Parkinson’s disease. EGCG was also shown to increase mental acuity and promoted better memory recall (11).
4. Promote Heart Health
Drinking tea may help to support heart health. Polyphenols, flavonoids, and catechins in tea have all been correlated with a lower risk for heart disease. Tea compounds help to reduce inflammation and the growth of soft muscle tissue that can results in hardened arteries and high blood pressure. Catechins such as EGCG are particularly powerful in preventing heart disease.
A study published in the Chinese Journal of Natural Medicines analyzed the effects of catechins on heart disease. Researchers found that green tea catechins helped to prevent congestive heart failure and hypertension by reducing oxidative stress. Catechins also prevented inflammation and reduced platelet clumping, helping to reduce the risk of blood clots and heart attack. Catechins were also found to regulate blood pressure.
Another study published in Epidemiology investigated dietary catechins on coronary diseases in postmenopausal women. The study consisted of 34,492 participants who were examined from 1986 to 1998. Researchers found a significant association of increased catechin intake and decreased heart disease death (12).
5. May Regulate Diabetes
The incidence of diabetes has increased in America over the last decade. Diabetes is a disease that affects how your body absorbs glucose. Diabetes occurs when the body is unable to produce enough insulin or when it doesn’t’ respond appropriately to insulin. Low insulin levels lead to low blood sugar and symptoms including fatigue, blurred vision, and frequent infections. Tea catechins may be able to prevent and regulate symptoms of diabetes.
A study published in Clinical and Experimental Pharmacology and Physiology examined tea catechins and diabetes. Researchers induced oxidative stress in type 2 diabetic red blood cells. Researchers found that cells injected with tea catechins had lower levels of oxidative stress. Researchers attributed these results to the antioxidant effects of catechins. The antioxidants worked to eliminate free radicals that can lead to oxidative damage. The results show that tea consumption lowers the risk of long-term complications of diabetes (13).
Another study published in the same journal found that epicatechin mimics the role of insulin. Tea catechins were injected into red blood cells in vitro. The researchers found that catechins restored glucose absorption to normal levels. The catechins also worked to trigger neurotransmitters in a way similar to insulin (14).
6. May Offer Sun Protection
Green tea polyphenols, including catechins, may help to provide protection from harmful UV rays. A clinical trial published in the Journal of Nutrition researched the impacts of tea catechins on 60 female volunteers. The double blind, placebo controlled study lasted for 12 weeks (15).
Participants that consumed tea catechins demonstrated a 25% decrease in UV-induced skin discoloration. The tea catechins were also found to improve blood flow 30 minutes after ingestion. The participants that drank tea also had smoother skin, less peeling, and increased elasticity.
7. Increases Energy
Tea catechins including EGCG may help to increase performance during endurance activities. A scientific analysis published in Antioxidants in Sport Nutrition examined the effect of green tea catechin content on sports performance. Researchers found that catechins increase fat oxidation and limit the body’s need to produce glycogen. This helps to improve endurance capacity and decrease fatigue and exhaustion. Research demonstrates that tea catechins may help you workout harder and longer (16).
The scientists also found that tea catechins increased oxygen levels in skeletal muscles, helping to support intense exercises. The catechins also reduced fatty acid concentration in blood cells, indicating an increase in endurance.
Drinking Tea For Health
Tea is a widely acclaimed beverage thanks to years of research. This beverage has been revered in Asia for centuries thanks to its concentration of antioxidants and healthy compounds. Tea catechins have increasingly become a central point of research in the western world.
Scientists have discovered anti-cancer properties in these compounds as well as potential protective effects against brain deterioration. Catechins may help increase energy and streamline digestive processes to accelerate weight loss. Drinking tea regularly may help you live longer and is often correlated with a healthier lifestyle. Pour yourself a cup of tea and sip to good health.
Sources:
1. https://www.researchgate.net/publication/309891301_Tea_Production_Composition_Consumption_and_its_Potential_as_an_Antioxidant_and_Antimicrobial_Agent
2. https://www.ncbi.nlm.nih.gov/pubmed/17299077
3. https://www.ncbi.nlm.nih.gov/pubmed/19932867
4. https://www.ncbi.nlm.nih.gov/pubmed/22974973
5. https://www.ncbi.nlm.nih.gov/pubmed/15640470
6. https://www.wjgnet.com/2218-4333/full/v5/i3/520.htm
7. https://journals.lww.com/epidem/Fulltext/2008/09000/Tea_and_Reduced_Liver_Cancer_Mortality.21.aspx
8. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4997373/
9. https://www.ncbi.nlm.nih.gov/pubmed/23551173
10. https://www.ncbi.nlm.nih.gov/pubmed/28678393
11. https://academic.oup.com/jn/article/138/8/1578S/4750820
12. https://journals.lww.com/epidem/Fulltext/2001/11000/Dietary_catechins_in_relation_to_coronary_heart.15.aspx
13. https://www.ncbi.nlm.nih.gov/pubmed/15730438
14. https://www.ncbi.nlm.nih.gov/pubmed/11553037
15. https://www.ncbi.nlm.nih.gov/pubmed/21525260
16. https://www.ncbi.nlm.nih.gov/books/NBK299060/
10 Evidence-Based Benefits of Green Tea
We include products we think are useful for our readers. If you buy through links on this page, we may earn a small commission. Here’s our process.
Green tea is touted to be one of the healthiest beverages on the planet. It’s loaded with antioxidants that have many health benefits, which may include: improved brain function
fat loss
protecting against cancer
lowering the risk of heart disease There may be even more potential health benefits. Here are 10 possible health benefits of green tea.
1. Contains healthy bioactive compounds Green tea is more than just a hydrating beverage. The green tea plant contains a range of healthy compounds that make it into the final drink ( 1 ). Tea is rich in polyphenols, which are natural compounds that have health benefits, such as reducing inflammation and helping to fight cancer. Green tea contains a catechin called epigallocatechin-3-gallate (EGCG). Catechins are natural antioxidants that help prevent cell damage and provide other benefits. These substances can reduce the formation of free radicals in the body, protecting cells and molecules from damage. These free radicals play a role in aging and many types of diseases. EGCG is one of the most powerful compounds in green tea. Research has tested its ability to help treat various diseases. It appears to be one of the main compounds that gives green tea its medicinal properties ( 2 ). Green tea also has small amounts of minerals that can benefit your health. Try to choose a higher quality brand of green tea, because some of the lower quality brands can contain excessive amounts of fluoride ( 3 ). That being said, even if you choose a lower quality brand, the benefits still outweigh any risk. Summary Green tea is loaded with polyphenol antioxidants, including a catechin called EGCG. These antioxidants can have various beneficial effects on health.
2. May improve brain function Green tea does more than just keep you alert, it may also help boost brain function. The key active ingredient is caffeine, which is a known stimulant. It doesn’t contain as much as coffee, but enough to produce a response without causing the jittery effects associated with taking in too much caffeine. Caffeine affects the brain by blocking an inhibitory neurotransmitter called adenosine. This way, it increases the firing of neurons and the concentration of neurotransmitters like dopamine and norepinephrine ( 4 , 5 ). Research has consistently shown that caffeine can improve various aspects of brain function, including mood, vigilance, reaction time, and memory ( 6 ). However, caffeine isn’t the only brain-boosting compound in green tea. It also contains amino acid L-theanine, which can cross the blood-brain barrier (7). L-theanine increases the activity of the inhibitory neurotransmitter GABA, which has anti-anxiety effects. It also increases dopamine and the production of alpha waves in the brain (7, 8 , 9 ). Studies show that caffeine and L-theanine can have synergistic effects. This means that the combination of the two can have particularly powerful effects in improving brain function ( 10 , 11 ). Because of the L-theanine and the small dose of caffeine, green tea may give you a much milder and different kind of buzz than coffee. Many people report having more stable energy and being much more productive when they drink green tea, compared with coffee. Summary Green tea contains less caffeine than coffee but enough to produce an effect. It also contains the amino acid L-theanine, which can work synergistically with caffeine to improve brain function.
3. Increases fat burning If you look at the ingredients list for any fat burning supplement, chances are, green tea will be on there. This is because, according to research, green tea can increase fat burning and boost metabolic rate (12). In one study involving 10 healthy men, taking green tea extract increased the number of calories burned by 4%. In another involving 12 healthy men, green tea extract increased fat oxidation by 17%, compared with those taking a placebo ( 13 , 14 ). However, some studies on green tea don’t show any increase in metabolism, so the effects may depend on the individual and how the study was set up ( 15 ). Caffeine may also improve physical performance by mobilizing fatty acids from fat tissue and making them available for use as energy ( 16 , 17 ). Two separate review studies reported that caffeine may increase physical performance by approximately 11–12% ( 18 , 19 ). Summary Green tea may boost metabolic rate and increase fat burning in the short term, although not all studies agree.
4. Antioxidants may lower the risk of some cancers Cancer is caused by uncontrolled growth of cells. It’s one of the world’s leading causes of death. Research has shown that oxidative damage can lead to chronic inflammation, which can lead to chronic diseases, including cancers. Antioxidants can help protect against oxidative damage ( 20 ). Green tea is an excellent source of powerful antioxidants. Research has linked green tea compounds with a reduced risk of cancer, including the following studies: Breast cancer. A comprehensive review of observational studies found that women who drank the most green tea had an approximately 20–30% lower risk of developing breast cancer, one of the most common cancers in women ( 21 ).
A comprehensive review of observational studies found that women who drank the most green tea had an approximately 20–30% lower risk of developing breast cancer, one of the most common cancers in women ( ). Prostate cancer. One study observed that men drinking green tea had a lower risk of advanced prostate cancer (22).
One study observed that men drinking green tea had a lower risk of advanced prostate cancer (22). Colorectal cancer. An analysis of 29 studies showed that those drinking green tea were around 42% less likely to develop colorectal cancer ( 23 ). Many observational studies indicate that green tea drinkers are less likely to develop several types of cancer, but more high quality research is needed to confirm these effects (24, 25 ). To get the most health benefits, avoid adding milk to your tea. Some studies suggest it can reduce the antioxidant value in some teas ( 26 ). Summary Green tea has powerful antioxidants that may protect against cancer. Multiple studies show that green tea drinkers have a lower risk of various types of cancer.
5. May protect the brain from aging Not only can green tea improve brain function in the short term, it may also protect your brain as you age. Alzheimer’s disease is a common neurodegenerative disease and the most common cause of dementia in older adults ( 27 ). Parkinson’s disease is another common neurodegenerative disease and involves the death of dopamine-producing neurons in the brain. Several studies show that the catechin compounds in green tea can have various protective effects on neurons in test tubes and animal models, possibly lowering the risk of dementia ( 28 , 29 , 30 ). Summary The bioactive compounds in green tea can have various protective effects on the brain. They may reduce the risk of dementia, a common neurodegenerative disorder in older adults.
6. May reduce bad breath The catechins in green tea also have benefits for oral health. Test-tube studies suggest that catechins can suppress the growth of bacteria, potentially lowering the risk of infections ( 31 , 32, 33 , 34 ). Streptococcus mutans is a common bacterium in the mouth. It causes plaque formation and is a leading contributor to cavities and tooth decay. Studies indicate that the catechins in green tea can inhibit the growth of oral bacteria in the lab, but no evidence shows that drinking green tea has similar effects ( 35 , 36 , 37 , 38 ). However, there’s some evidence that green tea may reduce bad breath ( 39 , 40 ). Summary The catechins in green tea may inhibit the growth of bacteria in the mouth, reducing the risk of bad breath.
7. May help prevent type 2 diabetes The rates of type 2 diabetes are increasing in recent decades. The condition now affects about 1 in 10 Americans ( 41 ). Type 2 diabetes involves having elevated blood sugar levels, which may be caused by insulin resistance or an inability to produce insulin. Studies show that green tea may improve insulin sensitivity and reduce blood sugar levels ( 42 ). One study in Japanese individuals found that those who drank the most green tea had an approximately 42% lower risk of type 2 diabetes ( 43 ). According to a review of 7 studies with a total of 286,701 individuals, tea drinkers had an 18% lower risk of diabetes ( 44 ). Summary Some controlled studies show that green tea may cause mild reductions in blood sugar levels. It may also lower the risk of type 2 diabetes.
8. May help prevent cardiovascular disease Cardiovascular diseases, including heart disease and stroke, are the leading causes of death worldwide (45). Studies show that green tea may improve some of the main risk factors for these diseases, which includes improving total cholesterol and LDL (bad) cholesterol levels (46). Green tea also increases the antioxidant capacity of the blood, which protects the LDL particles from oxidation, which is one part of the pathway toward heart disease (47, 48). Given the beneficial effects on risk factors, it may not be surprising that people who drink green tea have up to a 31% lower risk of dying from a cardiovascular disease ( 49 , 50, 51 ). Summary Green tea may lower total and LDL (bad) cholesterol, as well as protect the LDL particles from oxidation. Studies show that people who drink green tea have a lower risk of cardiovascular disease.
9. May help you lose weight Given that green tea can boost the metabolic rate in the short term, it makes sense that it could help you lose weight. Several studies show that green tea may help reduce body fat, especially in the abdominal area (52, 53 ). One of these studies was a 12-week randomized controlled study involving 240 people with obesity. In this study, those in the green tea group had significant decreases in body fat percentage, body weight, waist circumference, and belly fat, compared with those in the control group ( 54 ). However, some studies don’t show a statistically significant increase in weight loss with green tea, so researchers need to perform further studies to confirm this effect ( 55 ). Summary Some studies show that green tea may lead to increased weight loss. It may be particularly effective at reducing the dangerous abdominal fat.
10. May help you live longer Given that some compounds in green tea may help protect against cancer and heart disease, it makes sense that it could help you live longer. In one study, researchers studied 40,530 Japanese adults over 11 years. Those who drank the most green tea — 5 or more cups per day — were significantly less likely to die during the study period ( 56 ): Death of all causes: 23% lower in women, 12% lower in men
23% lower in women, 12% lower in men Death from heart disease: 31% lower in women, 22% lower in men
31% lower in women, 22% lower in men Death from stroke: 42% lower in women, 35% lower in men Another study involving 14,001 older Japanese individuals found that those who drank the most green tea were 76% less likely to die during the 6-year study period (57). Summary Studies show that people who drink green tea may live longer than those who don’t.
How to Get the Most EGCG from Your Green Tea
Green tea is a known superfood, primarily for its EGCG content. But did you know that there is huge variation between the content of EGCG in different brands of green tea? That how you prepare and drink the tea can significantly change how much EGCG it imparts? And that your microbiome also influences how beneficial the EGCG effects are?
EGCG supplements are a useful tool in functional medicine, packing a powerful punch that can enhance a patient’s therapeutic program. However, we can all reap the benefits of EGCG by consuming dietary sources.
What’s the big deal with EGCG?
EGCG, which stands for epigallocatechin gallate, is a polyphenol (read “amazing plant compound”) with potent health protective effects against the following diseases and more:
It is also a powerful adaptogenic modulator of our epigenetics, which regulate how our genes are expressed.
How to brew a tea that is higher in EGCG
Brewed tea contains the highest concentration of EGCG, and its concentration increases with brewing time.
To maximize EGCG content, pour boiling water (not just hot water) over a green tea bag and let steep for 10 minutes before removing the bag and drinking.
The only trade off with increased brewing time is a slight increase in bitterness. If you want to counteract this, try a little bit of lemon juice or sliced lemon, or add a lemon verbena tea bag while brewing.
Choosing the right brand of green tea
Teavana Green Tea Gyokuro has been found to have the most EGCG but is also one of the most expensive brands.
Amongst other, more readily available brands, Celestial Seasoning and Lipton green tea beat Bigelow and Stash brands.
Decaf, pre-mixed green teas, or flavored green teas contain much less EGCG than freshly-brewed tea, and may also have undesirable extra ingredients.
Organic teas are also a good choice, with good brands being Choice or Traditional Medicinals.
When to consume green tea
EGCG, like other catechins, binds to proteins in our food to form complexes that are less absorbable into our bloodstream. Therefore, to reap the most benefit from green tea, it’s best to consume between meals rather than directly with food.
EGCG can also bind with minerals in our food such as iron reducing its absorption too—yet another reason to drink your green tea separately from other foods.
Will my green tea keep me up at night?
Green tea contains much less caffeine than black tea or coffee. However, it does still contain some caffeine, so if you’re sensitive you may want to limit your consumption to the morning hours. Big bonus, though—if you’re looking to cut back on your caffeine consumption, green tea is a nice alternative that still packs a little caffeine punch.
Here’s how the caffeine content of green tea compares with alternatives:
Beverage Caffeine per 8 oz cup Green tea 35-70 mg Black tea 60-90 mg Coffee 150-200 mg
Alternative sources of EGCG
Did you know that green tea is not the only source of EGCG? While green tea is relatively more potent, you can also find a reasonable amount of EGCG in white tea and oolong tea.
Some other foods such as strawberries, raspberries, blackberries, plums, peaches, kiwi, and avocado also contain small amounts of EGCG.
How does this connect with my microbiome?
A healthy microbiome is likely essential for optimizing the benefits of all dietary polyphenols including EGCG. These gut organisms are known to convert polyphenols into many different derivatives that have altered absorption properties and activities in the body.
Summary: top 3 tips for maximizing EGCG benefits:
Choose brewed green, oolong or white tea and steep for 10 minutes Consume away from other meals Keep your microbiome healthy with a diet rich in plant foods, avoiding processed and sugary foods
WWW Error Blocked Diagnostic
Access Denied
Your access to the NCBI website at www.ncbi.nlm.nih.gov has been temporarily blocked due to a possible misuse/abuse situation involving your site. This is not an indication of a security issue such as a virus or attack. It could be something as simple as a run away script or learning how to better use E-utilities, http://www.ncbi.nlm.nih.gov/books/NBK25497/, for more efficient work such that your work does not impact the ability of other researchers to also use our site. To restore access and understand how to better interact with our site to avoid this in the future, please have your system administrator contact [email protected].
Green
Green tea
Green tea (simplified Chinese: 绿茶; traditional Chinese: 綠茶; pinyin: lǜchá; Japanese: 緑茶; ryokucha) is a “true” tea, meaning it is made solely with the leaves of Camellia sinensis, that has undergone minimal oxidation during processing. Green tea originates from China and has become associated with many cultures in Asia from Japan to the Middle East. Recently, it has become more widespread in the West, where black tea is traditionally consumed. Many varieties of green tea have been created in countries where it is grown that can differ substantially due to variable growing conditions, processing and harvesting time. Over the last few decades green tea has begun to be subjected to many scientific and medical studies to determine the extent of its long purported health benefits, with some evidence suggesting regular green tea drinkers may have lower chances of heart disease and contracting certain types of cancer.[citation needed]
Chinese green teas
Zhejiang Province
Zhejiang is home to the most famous of all teas, Xi Hu Longjing, as well as many other high-quality green teas.
Longjing The most well-known of famous Chinese teas from Hangzhou, its name in Chinese means dragon well. It is pan-fried and has a distinctive flat appearance. Falsification of Longjing is very common, and most of the tea on the market is in fact produced in Sichuan Province [citation needed] and hence not authentic Longjing. Hui Ming Named after a temple in Zhejiang. Long Ding A tea from Kaihua County known as Dragon Mountain. Hua Ding A tea from Tiantai County and named after a peak in the Tiantai mountain range. Qing Ding A tea from Tian Mu, also known as Green Top. Gunpowder A popular tea also known as zhuchá. It originated in Zhejiang but is now grown elsewhere in China.
Jiangsu Province
Bi Luo Chun A Chinese famous tea also known as Green Snail Spring, from Dong Ting. As with Longjing, falsification is common and most of the tea marketed under this name may, in fact, be grown in Sichuan. Rain Flower A tea from Nanjing. Shui Xi Cui Bo
Hubei Province
Yu Lu A steamed tea known as Gyokuro (Jade Dew) made in the Japanese style.
Henan Province
Xin Yang Mao Jian A Chinese famous tea also known as Green Tip, or Tippy Green.
Jiangxi Province
Chun Mee Name means “precious eyebrows”; from Jiangxi, it is now grown elsewhere. Gou Gu Nao A well-known tea within China and recipient of numerous national awards. Yun Wu A tea also known as Cloud and Mist.
Anhui Province
Anhui Province is home to three Chinese famous teas.
Da Fang A tea from Mount Huangshan also known as Big Square. Huangshan Mao Feng A Chinese famous tea from Mount Huangshan. Lu An Guapian A Chinese famous tea also known as Melon Seed. Hou Kui A Chinese famous tea also known as Monkey tea. Tun Lu A tea from Tunxi District. Huo Qing A tea from Jing County, also known as Fire Green. Hyson A medium-quality tea from many provinces, an early-harvested tea.
Japanese green teas
Green tea (緑茶; ryokucha) is so ubiquitous in Japan that it is more commonly known simply as “tea” (お茶; ocha) and even as “Japanese tea” (日本茶; nihoncha)，although it was invented in China during the Song Dynasty, and brought to Japan by Myōan Eisai, a Japanese Buddhist priest who also introduced the Rinzai school of Zen Buddhism. Types of tea are commonly graded depending on the quality and the parts of the plant used as well as how they are processed. There are large variations in both price and quality within these broad categories, and there are many specialty green teas that fall outside this spectrum. The best Japanese green tea is said to be that from the Yame region of Fukuoka Prefecture and the Uji region of Kyoto. Shizuoka Prefecture（静岡県） crops 40% of raw tea leaf.
玉露 Gyokuro (Jade Dew) The highest grade Japanese green tea cultivated in special way. Gyokuro’s name refers to the pale green color of the infusion. The leaves are grown in the shade before harvest, which alters their flavor. Gyokuro has a high caffeine content (Generally 0.16% in infusion[1]), but the significant L-Theanine content of Gyokuro slows down and counteracts the caffeine assimilation, and also the amount of drinking is very small such as 10ml – 60ml. 抹茶 Matcha (rubbed tea) A fine ground Ten-cha (碾茶: has very similar cultivation process as Gyokuro) used primarily in the tea ceremony. Matcha is also a popular flavor of ice cream and other sweets in Japan. 煎茶 Sencha (broiled tea) The first and second flush of green tea, which is the commonest green tea in Japan made from leaves that are exposed directly to sunlight. The first flush is also called Shin-cha (新茶: a new tea) 玄米茶 Genmaicha (Brown-Rice tea) Bancha (sometimes Sencha) and roasted genmai (brown rice) blend. It is often mixed with small amount of Matcha to make the colour better. 冠茶 Kabusecha (covered tea) kabusecha is sencha tea, the leaves of which have grown in the shade prior to harvest, although not for as long as Gyokuro. It has a more delicate flavor than Sencha. 番茶 Bancha (common tea) Sencha harvested as a third or fourth flush tea between summer and autumn. The leaves are larger than Sencha and the flavor is less full. 焙じ茶 Hōjicha (pan fried tea) A strong roasted green tea. 茎茶 Kukicha (stalk tea) A tea made from stalks produced by harvesting one bud and three leaves. 玉緑茶 Tamaryokucha A tea that has a tangy, berry-like taste, with a long almondy aftertaste and a deep aroma with tones of citrus, grass, and berries.
Okinawan Tea
Other green teas
Green Tea from Ceylon
Brewing
Generally, 2.25 grams of tea per 6 ounces of water, or about one teaspoon of green tea per cup, should be used. With very high quality teas like gyokuro, more than this amount of leaf is used, and the leaf is steeped multiple times for short durations.
Green tea brewing time and temperature varies with individual teas. The hottest brewing temperatures are 180°F to 190°F (82°C to 88°C) water and the longest steeping times 2 to 3 minutes. The coolest brewing temperatures are 140°F to 150°F (60°C to 66°C) and the shortest times about 30 seconds. In general, lower quality green teas are steeped hotter and longer, while higher quality teas are steeped cooler and shorter. Steeping green tea too hot or too long will result in a bitter, astringent brew. High quality green teas can and usually are steeped multiple times – 2 or 3 steepings is typical.
Caffeine
Green teas have about a quarter the caffeine content, by liquid volume, of coffee.[citation needed] Green teas contain two caffeine metabolites (caffeine like substances) theophylline which is stronger than caffeine and theobromine which is slightly weaker than caffeine.
Potential effects of green tea on health
Main article: Potential effects of tea on health
History
There is archaeological evidence that suggests that tea has been consumed for almost 5000 years, with China and India being two of the first countries to cultivate it. Green tea has been used as traditional medicine in areas such as India, China, Japan and Thailand to help everything from controlling bleeding and helping heal wounds to regulating body temperature, blood sugar and promoting digestion.
The Kissa Yojoki (Book of Tea), written by Zen priest Eisai in 1191, describes how drinking green tea can have a positive effect on the five vital organs, especially the heart. The book discusses tea’s medicinal qualities, which include easing the effects of alcohol, acting as a stimulant, curing blotchiness, quenching thirst, eliminating indigestion, curing beriberi disease, preventing fatigue, and improving urinary and brain function. Part One also explains the shapes of tea plants, tea flowers, and tea leaves, and covers how to grow tea plants and process tea leaves. In Part Two, the book discusses the specific dosage and method required for individual physical ailments.
Unproven claims
Green tea has been credited with providing a wide variety of health benefits, many of which have not been validated by scientific evidence. These claims and any for which academic citations are currently missing are listed here:
Stopping certain neurodegenerative diseases such as Alzheimer’s and Parkinson’s. [1]
The prevention and treatment of cancer [2]
Treating multiple sclerosis [3]
Preventing the degradation of cell membranes by neutralizing the spread of free radicals which occur during oxidation process. [4]
Reducing the negative effects of LDL cholesterol (bad cholesterol) by lowering levels of triglycerides and increasing the production of HDL cholesterol (good cholesterol).
Increasing fat oxidation (helps the body use fat as an energy source) and raising metabolism. [5]
Joy Bauer, a New York City nutritionist, says [the catechins in green tea] increase levels of the metabolism speeding brain chemical norepinephrine.
Japanese researchers claim that drinking five cups of green tea a day can burn 70 to 80 extra calories. Dr. Nicholas Perricone, an anti-aging specialist, appeared on the Oprah Winfrey show and told Oprah’s viewers they can lose 10 lbs (4.5 kg) in 6 weeks drinking green tea instead of coffee.
Some green tea lovers restrict their intake because of the caffeine it contains — about a quarter the amount as is found in coffee. Too much caffeine can cause nausea, insomnia or frequent urination. [6]
United States Food and Drug Administration (FDA)
The article Tea: A Story of Serendipity[7] appeared in the March 1996 issue of FDA Consumer Magazine and looked at the potential benefits of green tea. At that time they had not done any reviews of the potential benefits of green tea and were waiting to do it until health claims were filed. They have since denied two petitions to make qualified health claims as to the health benefits of green tea. [8]
On June 30, 2005, in response to “Green Tea and Reduced Risk of Cancer Health Claim”, they stated: “FDA concludes that there is no credible evidence to support qualified health claims for green tea consumption and a reduced risk of gastric, lung, colon/rectal, esophageal, pancreatic, ovarian, and combined cancers. Thus, FDA is denying these claims. However, FDA concludes that there is very limited credible evidence for qualified health claims specifically for green tea and breast cancer and for green tea and prostate cancer, provided that the qualified claims are appropriately worded so as to not mislead consumers.” [9]
On May 9, 2006, in response to “Green Tea and Reduced Risk of Cardiovascular Disease”, they concluded “there is no credible evidence to support qualified health claims for green tea or green tea extract and a reduction of a number of risk factors associated with CVD.” [10]
However in October 2006, the FDA approved an ointment based on green tea. New Drug Application (NDA) number N021902, for kunecatechins ointment 15% (proprietary name Veregen) was approved on October 31, 2006 [11], and added to the “Prescription Drug Product List” in October 2006. [12] Kunecatechins ointment is indicated for the topical treatment of external genital and perianal warts. [13]
Scientific studies
According to research reported at the Sixth International Conference on Frontiers in Cancer Prevention, sponsored by the American Association for Cancer Research, a standardized green tea polyphenol preparation (Polyphenon E) limits the growth of colorectal tumors in rats treated with a substance that causes the cancer. “Our findings show that rats fed a diet containing Polyphenon E are less than half as likely to develop colon cancer,” Dr. Hang Xiao, from the Ernest Mario School of Pharmacy at Rutgers University, Piscataway, New Jersey, noted in a statement.
A 2006 study published in the September 13 issue of the Journal of the American Medical Association concluded “Green tea consumption is associated with reduced mortality due to all causes and due to cardiovascular disease but not with reduced mortality due to cancer.” The study, conducted by the Tohoku University School of Public Policy in Japan, followed 40,530 Japanese adults, ages 40-79, with no history of stroke, coronary heart disease, or cancer at baseline beginning in 1994. The study followed all participants for up to 11 years for death from all causes and for up to 7 years for death from a specific cause. Participants who consumed 5 or more cups of tea per day had a 16 percent lower risk of all-cause mortality and a 26 percent lower risk of cardiovascular disease than participants who consumed less than one cup of tea per day. The study also states, “If green tea does protect humans against CVD or cancer, it is expected that consumption of this beverage would substantially contribute to the prolonging of life expectancy, given that CVD and cancer are the two leading causes of death worldwide.”[14] [15]
A study in the February 2006 edition of the American Journal of Clinical Nutrition concluded “A higher consumption of green tea is associated with a lower prevalence of cognitive impairment in humans.”[16] [17]
In May 2006, researchers at Yale University School of Medicine weighed in on the issue with a review article that looked at more than 100 studies on the health benefits of green tea. They pointed to what they called an “Asian paradox,” which refers to lower rates of heart disease and cancer in Asia despite high rates of cigarette smoking. They theorized that the 1.2 liters of green tea that is consumed by many Asians each day provides high levels of polyphenols and other antioxidants. These compounds may work in several ways to improve cardiovascular health, including preventing blood platelets from sticking together (This anticoagulant effect is the reason doctors warn surgical patients to avoid green tea prior to procedures that rely on a patient’s clotting ability) and improving cholesterol levels, said the researchers, whose study appeared in the May issue of the Journal of the American College of Surgeons. Specifically, green tea may prevent the oxidation of LDL cholesterol (the “bad” type), which, in turn, can reduce the buildup of plaque in arteries, the researchers wrote.[18]
A study published in the August 22, 2006 edition of Biological Psychology looked at the modification of the stress response via L-Theanine, a chemical found in green tea. It “suggested that the oral intake of L-Theanine could cause anti-stress effects via the inhibition of cortical neuron excitation.”[19]
In a double-blind, randomized, placebo-controlled trial done by Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, 240 adults were given either theaflavin-enriched green tea extract in form of 375mg capsule daily or a placebo. After 12 weeks, patients in the tea extract group had significantly less low-density lipoprotein cholesterol (LDL-C) and total cholesterol (16.4% and 11.3% lower than baseline, p<0.01) than the placebo group. The author concluded that theaflavin-enriched green tea extract can be used together with other dietary approaches to reduce LDL-C. A study published in the January, 2005 edition of the American Journal of Clinical Nutrition concluded "Daily consumption of tea containing 690 mg catechins for 12 wk reduced body fat, which suggests that the ingestion of catechins might be useful in the prevention and improvement of lifestyle-related diseases, mainly obesity." [20] According to a Case Western Reserve University School of Medicine study published in the April 13 2005 issue of the Proceedings of the National Academy of Sciences, antioxidants in green tea may prevent and reduce the severity of rheumatoid arthritis. The study examined the effects of green tea polyphenols on collagen-induced arthritis in mice, which is similar to rheumatoid arthritis in humans. In each of three different study groups, the mice given the green tea polyphenols were significantly less likely to develop arthritis. Of the 18 mice that received the green tea, only eight (44 percent) developed arthritis. Among the 18 mice that did not receive the green tea, all but one (94 percent) developed arthritis. In addition, researchers noted that the eight arthritic mice that received the green tea polyphenols developed less severe forms of arthritis. A German study found that an extract of green tea and hot water (filtered), applied externally to the skin for 10 minutes, three times a day could help people with skin damaged from radiation therapy (after 16-22 days). [21] A study published in the December 1999 American Journal of Clinical Nutrition found that "Green tea has thermogenic properties and promotes fat oxidation beyond that explained by its caffeine content per se. The green tea extract may play a role in the control of body composition via sympathetic activation of thermogenesis, fat oxidation, or both."[22] In lab tests, EGCG, found in green tea, was found to prevent HIV from attacking T-Cells. However, it is not yet known if this has any effect on humans. [23] A study in the August, 2003 issue of a new potential application of Cellular and Molecular Life Sciences found that "a new potential application of (–)-epigallocatechin-3-gallate [a component of green tea] in prevention or treatment of inflammatory processes is suggested" [24] Tea Black tea | Green tea | Red tea | White tea | Yellow tea | Oolong tea | Blended and flavored teas Ceremonies and methods Related to tea China | India | Japan | Korea | Mongolia | Morocco | Turkey Tea house | Teapot | Tearoom | Tea and health See also Chinese tea culture Japanese tea ceremony Potential effects of tea on health Reactive oxygen species Yellow tea References Master Lam Kam Cheun et al (2002). The way of tea. Gaia Books. Press coverage
Organic Dragon Well – Longjing – Chinese Green Tea
Shipping policy
*We aim to dispatch all orders within 1-2 days of receiving your request. However, this can vary during peak times and other conditions outside of our control. Therefore, the below estimates of shipping times have been provided by our couriers.
UK Deliveries
Method Cost Carrier Transit time Standard £2.50, Free – over £25 Royal Mail 2-5 days, up to 14*, Not Tracked Tracked £5.95 DPD 1-2 days, up to 5*, Tracked Next-Working-Day £9.95 DPD Orders placed before 2pm, 1-2** days, Tracked Saturday £13.95 DPD Orders placed before 2pm, Saturday delivery, Tracked
*Most deliveries will be made within the usual time frame, but some areas and services may experience delays.
European Deliveries
Currently, there are some delays with sending parcels to EU countries from the UK. This is due to the UK leaving the European Union. We will keep you updated with any notifications as they happen.
Please note that a tracking number is not provided for EU Standard deliveries.
CUSTOMS CHARGES: All commercial goods arriving from the UK are subject to VAT, Import Duty and a handling fee in the country receiving the goods.
Method Cost Carrier Transit time Standard From £5.50 Royal Mail 3-7 days, up to 21*, Not Tracked (Offered for orders less than £50 only) Economy From £5.50 Royal Mail 3-7 days, up to 21*, Not Tracked (Offered for orders less than £50 only) Tracked From £15.95 Fedex 3-5 days, up to 8*, Tracked
*Most deliveries will be made within the usual time-frame, but some areas and services may experience delays.
Rest of the World
Method Cost Carrier Transit time Standard From £4.00 Royal Mail 8-15 days, up to 30*, Not Tracked (Offered for orders less than £50 only) USA tracked From £15.00 Fedex 2-3 days, up to 7*, Tracked ROW Tracked From £18.95 Fedex 1-5 days, up to 5*, Tracked
*Most deliveries will be made within the usual time frame, but some areas and services may experience delays.
International Buyers (Including EU) – Please Note:
Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer’s responsibility. Please check with your country’s customs office to determine what these additional costs will be before buying.
키워드에 대한 정보 kaihua longding catechins
다음은 Bing에서 kaihua longding catechins 주제에 대한 검색 결과입니다. 필요한 경우 더 읽을 수 있습니다.
이 기사는 인터넷의 다양한 출처에서 편집되었습니다. 이 기사가 유용했기를 바랍니다. 이 기사가 유용하다고 생각되면 공유하십시오. 매우 감사합니다!
사람들이 주제에 대해 자주 검색하는 키워드 Flute Brewing Green Tea
- tea
- mei leaf
- don mei
- loose leaf tea
- white tea
- green tea
- black tea
- puerh tea
- puer tea
- pu erh tea
- websites for tea
- tea tasting
- tea shopping
- high quality tea
- chinese tea
- tea ware
- teaware
- gong fu tea
- gong fu brewing
- flute brewer
- tube brewer
- glass brewer
- how to brew green tea
- hou kui
- taiping hou kui
- long ding
- kaihua long ding
- bamboo green tea
- zhu ye qing
- monkey king green
- monkey green tea
- monkey picked tea
Flute #Brewing #Green #Tea
YouTube에서 kaihua longding catechins 주제의 다른 동영상 보기
주제에 대한 기사를 시청해 주셔서 감사합니다 Flute Brewing Green Tea | kaihua longding catechins, 이 기사가 유용하다고 생각되면 공유하십시오, 매우 감사합니다.
