If you are interested in understanding in detail the benefits of green tea in relation to specific body functions and in comparison with other beverages, please download the White paper prepared by our experts. If you need any additional information, you are welcome to email us your questions and our experts will be happy to answer them for you.
Q. What does drinking tea do for my heath?
A. Find out in the Tea & Health section on this site.
Q. How much tea do I need to drink each day?
A. Studies show that one cup of green tea with about 30 to 60 milligrams of polyphenols isn't enough. To receive maximum benefits from tea, you should drink between four and ten cups of green tea, or get 120 to 600 milligrams of tea polyphenols, every day.
Q. What are free radicals?
A. Free radicals are unstable molecules such as hydrogen, nitric oxide (NO) and oxygen (O2). They occur naturally in the body and result from chemical reactions during normal cellular processes. They also result from exposure to pollution, sunlight, cigarette smoke, auto and industrial emissions and other toxins. Free radicals attack other molecules in the body and can damage cells resulting in the formation of another free radical and the process just continues. Free radical damage is a possible contributor to chronic and aging diseases including cancer, heart disease, stroke, rheumatoid arthritis, cataracts and Alzheimer's disease.
Q. What are antioxidants?
A. Antioxidants are substances that prevent or slow the breakdown of another substance by oxygen. They help prevent free radical formation inside the body, preventing or delaying cell and tissue damage caused by free radicals.
Q. Is green tea a good source of antioxidants?
A. Green tea has more antioxidant protection than either Vitamin C or E. In 1997, Lester A. Mitscher of the University of Kansas demonstrated that at least three of green tea's catechins outperform a number of other common natural antioxidants.
Q. Is green tea better than black tea?
A. For maximum health benefits it often is. Fresh green tea leaves contain the highest polyphenol amounts. All teas - black, green and oolong are from the same plant, Camellia sinensis, and contain polyphenols. It's the amount of processing each undergoes that determines the variety of tea and the eventual polyphenol content.
Q. Does tea have caffeine?
A. Yes. Even decaffeinated tea has a very small amount of caffeine. Green tea has less caffeine than black or oolong tea. The amount of caffeine depends on how tea is brewed, how long it's brewed, and what part of the tea plant - the leaf/bud comes from and the size of the leaf when brewed. Tea bags usually have smaller leaves or pieces of leaves and result in more caffeine when brewed.
Q. Is unflavored tea healthier than flavored tea?
A. No. Flavorings simply add taste and/or sweetness to tea. They don't affect the underlying health benefits of the tea itself.
Q. Why are green tea extracts better than regular tea bags?
A. Extracts concentrate the beneficial compounds in tea, delivering more benefit per serving. One gram of dried green tea leaves contains up to 10 percent polyphenols. That gram of tea, placed in a tea bag, has polyphenols dissolution rate of 30 percent, which means that only 30 percent (less than one third) of the beneficial components fully dissolve and are available. The result: once brewed, a typical cup of green tea has just 30 to 60 milligrams of polyphenols. And 150 to 300 milligrams of polyphenols are needed for maximum health benefits, which means that a person needs to drink four to six cups of green tea every day. While people in China and other Pacific Rim countries regularly drink this much, most Americans don't or won't.
Q. What about liquids and capsules?
A. Capsules containing extracts have been the most popular dosage form for green tea polyphenols for some time. However, when solid dosage forms (capsules or tablets) are ingested, dissolution and absorption are low. And slower dissolution and absorption rates decrease the bioavailability of beneficial polyphenols and can irritate the digestive tract. Plus many extracts are just that, extracts. They contain individual components from tea, but not all components. Some researchers think that tea's benefits are the result of all components working together. Liquid dosage forms offer a much higher dissolution rate and a 400 percent faster absorption rate than solid dosage forms. One cup of TeaTech instant green tea has 300 milligrams of polyphenols as well as all of green tea's natural healthy nutrients. One serving offers the same benefits and amount of absorbed polyphenols as taking 1,200 milligrams of green tea capsules every day.
Q. What's the Difference between TeaTech Green Tea Extract and Others?
A. The advantages of TeaTech proprietary Green Tea Extracts are: