Polyphenols, or phytochemicals, are a class of micronutrients found in plants. Polyphenols act as chelators to remove toxic metals from the blood stream and tissues and are also considered to be one of the most powerful antioxidants. Scientists have discovered over 4000 polyphenol compounds including tannins and gallic acid, which are a subset of polyphenols. When polyphenols, such as tannins and gallic acid, are combined, naturally or synthetically, they work synergistically to provide more potent benefits. Gallic acid is considered a subtype of tannins and while gallic acid and tannins share similar molecular structures in their organic forms, tannins are converted into gallic acid when consumed, due to oxidization of the tannin molecules.
Back To Top
Green Tea Science Part 2: Tannin, and Gallic Acid – 7 Commonly Asked Questions and How You Can Benefit
This is part 2 of Green Tea Science series. In this article, I will answer 7 commonly asked questions about green tea and its element: Tannin and Gallic Acid, and I will focus on how you can benefit from it.
If you have not yet read the previous part you can read Part 1 of Green Tea Science : Polyphenols, Catechines and EGCG by clicking here.
Part 2 : Tannin, Gallic Acid and Green Tea - 7 Answers to Commonly Asked Questions and How You Can Benefit
- What is the difference/relationship between tannins, polyphenols and gallic acid?
- What are tannins and how do they affect humans?
- What is gallic acid and how does it affect humans?
- How many tannins and gallic acid are in green tea, and how does the amount compare to other types of tea or food?
- Who should take tannins and gallic acid?
- Are there any side effects associated with tannins and gallic acid?
- What is the most effective way to take polyphenols?
Tannin
1. What is the difference/relationship between tannins, polyphenols and gallic acid
2. What are tannins and how do they affect humans?
Tannins are plant-derived organic compounds found in bark, fruit skins, seeds, tea leaves and other plant sources. Tannins have been shown to contain antimicrobial, antiviral and antifungal properties. As a potent antioxidant, tannins provide protection from the oxidization of cells caused by free radicals. This benefit, in addition to tannins ability to reduce inflammation and prevent gene mutation may protect against the development of certain cancers. Tannins may also be useful as a dietary aid for weight-loss due to their interference with the conversion of certain nutrients and food substances during the digestive process.
Back To Top
Back To Top
3. What is gallic acid and how does it affect humans?
Gallic acids, also called hydroxybenzoic acids, are colorless naturally-occuring crystalline compounds found in all plants. Abundant sources include blueberries, flaxseeds, and tea leaves. As an antioxidant, gallic acid provides cellular protection from free radicals. Gallic acid has also proven to be an effective anti-inflammatory agent and may reduce the symptoms of arthritis, lupus, and other inflammatory conditions such as allergies. Gallic acid promotes the release of insulin and is being studied for its potential benefit in the treatment and prevention of diabetes. It addition to its direct health benefits when consumed, gallic acid also provides protection against aflatoxins produced by fungus during storage and is used to preserve foods such as corn, wheat and nuts, which are susceptible to aflatoxin contamination. Gallic acid's antifungal properties not only fight fungus in the gut when consumed but also acts as a natural preservative for green tea as well.
Back To Top
Back To Top
4. How much tannins and gallic acid are in green tea, and how does it compare to other type of tea or food?
Tannin and gallic acid levels are dependent upon many factors including harvesting times and methods. Green tea typically contains up to .46 mg of gallic acid per gram, compared to 4.65 mg for black tea and .68 mg for Oolong tea. Blackberries and red wine each contain an average of 4 mg of gallic acid, while apples, soybeans, and bananas contain close to 1 mg of gallic acid. By weight, green tea provides one of the highest sources of bioeffective tannin and gallic acid.
Back To Top
Back To Top
5. Who should take tannins and gallic acid?
With potent antioxidants and other health benefits associated with tannins and gallic acid, these micronutrients are appropriate for just about anyone interested in improving and maintaining health. Individuals interested in a healthy approach to weight loss may also benefit from tannin's and gallic acid's ability to curb hunger. High concentrations of these compounds may affect important enzyme levels in fetuses, and pregnant women should consult with their primary care provider before taking supplementary forms of tannins or gallic acid. However, there are no known risks with moderate consumption in a natural form such as fruits and green tea.
Back To Top
Back To Top
6. Are there any side effects associated with tannins and gallic acid?
Side effects of tannins and gallic acid are uncommon and are usually associated with over-consumption or other underlying health conditions. Nausea, headache and stomach irritation are the most common side-effects reported by a small number of consumers. Excessive tannins in the diet may interfere with the body's ability to absorb iron in people with marginal iron levels but scientific studies are still inconclusive. Tannins and gallic acid are also being studied for their possible potentiating effects on pharmaceuticals. Individuals taking prescribed and over-the-counter medications should consult with their primary care provider with any concerns about possible interactions.
Back To Top
Back To Top
7. What is the most effective way to take in polyphenols?
Polyphenols consumed from a naturally-derived source, like Issaku Japanese Green Tea, provide the greatest levels of bioavailability and bioeffenciency, which is directly related to the absorption of micronutrients. According to studies published in The American Journal of Clinical Nutrition, dietary polyphenol supplements may be useful when consumed in moderate levels but are inferior to unsynthesized compounds. Infusions and tinctures may provide the most effective delivery of the beneficial constituents found in polyphenols and nutritionists recommend incorporating these sources of polyphenols into a regular diet for long-term health benefits.
If you like this post, you make also enjoy my book
I Will Teach You How to be Healthy by Drinking Using Japanese Green Tea: Surprising Facts and Tips for How You can Take Best Advantage of This Amazing Plant ( ISBN-13: 978-1541252455 ISBN-10: 1541252454)
Related Articles You May Be Interested
Get Free Bonus Content
If you have ever thought that Green Tea is an “acquired taste” or that it is “too bitter” to enjoy, we’re here to change your mind! We want everyone to experience the health benefits of Green Tea and show you that this can be an amazing, refreshing, and delicious drink when made correctly. With just a few tips on how to brew this powerful leaf we can change your mind about the taste and enjoyment of drinking Green Tea.
Don’t miss out on the health benefits of tea!
- Improve health
- Increase brain function
- Regulate weight
- Lower your risk of cancers
- Reduce risk of heart disease
- Lowers risk of diabetes
We know that you will love this tips to brewing tea and getting the most flavor and elegance out of every cup. Sign up for Free Japanese Green Tea Club and get this great informative manual on brewing green tea. You will learn what it is that makes it one of the most popular beverages in the world.
Sign up for Free Green Tea Club for to Get The Two Books for Free.
What is GREEN TEA CLUB?
Sign up free to Green Tea Club to get tips and exclusive articles about how to use your matcha and green tea for a healthy lifestyle. Green Tea Club is hosted by Kei Nishida, Author of Cook with Matcha and Green Tea and CEO of Japanese Green Tea Company.
Get free E-book "Green Tea Science – 12 Scientific Tips for Brewing Green Tea To Taste Better" By Kei Nishida - Value $9.99
Get free E-book "Matcha Lover's 21st Century Recipe Collection" By Kei Nishida (42 pages recipe book) - Value $9.99
Get immediate access to 10% Off coupon for your first order and access to Exclusive Coupons and Specials - Value $50+
Monthly Giveaways - Value $50+
Access to New Green Tea Recipe and Health Articles - Value $50+
Unsubscribe anytime. It’s free!
What do you think about the article? Please comment below or reply me privately here!
Leave a comment
Comments will be approved before showing up.
Also in Japanese Green Tea and Health
Is it Safe to Eat Green Tea Leaves?
You already know that green tea is a great-tasting and relaxing beverage with numerous health benefits, but can the same be said about eating the tea leaves rather than steeping them into a drink?
Read more to find out the truth.
Which Tea is Good for Me? (Interactive Tea Finder)
Ever wondered what type of tea is good for me? Try our new interactive quiz to find out which tea that is good for you.
Everything Green Tea: Beauty Benefits
Green tea is a popular drink that offers many health benefits. It has been used for centuries in Asia for its medicinal properties. But recently, it has become popular in the West as a healthy beverage to drink and as an ingredient in beauty products.
+Japanese Green Tea and Health Blog
About This Blog:
Japanese Green Tea and Health Blog is a collection of articles related to Japanese Green Tea's health benefits. The blog focuses on scientific research related to Japanese Green Tea and how it can help people live healthier lives. Japanese Green Tea is one of the most health-beneficial beverages in the world, and its effects are being researched around the world.Author: Kei Nishida
Kei Nishida is a writer, a Japanese Green Tea enthusiast, and the founder and CEO of Japanese Green Tea Company. You can find his published work in Fresh Cup Magazine, Yoga Digest Magazine, T-Ching, and more. He is also the author of multiple published books related to green tea.
Read more about Kei Nishida
Cook with Matcha and Green Tea
Our Award-Winning Matcha is on Amazon Now!
Get Premium Japanese Coffee (New!)
Get Free E-Book
Subscribe to Japanese Green Tea and Health Blog
Subscribe in a reader 
(Unsubscribe anytime)
© 2022 Japanese Green Tea Company LLC - Secure Shopping Protected by Shopify Inc. - Privacy and Terms
Steeping Guide
