How does green tea promote weight loss?

Dr. Andrea Pennington, MD
Integrative Medicine Specialist

If you like green tea, flavored or not, you can get some natural fat burning benefits with a cup or two each day in between meals. Green tea and green tea extract pills have certain natural elements, like ECGC and polyphenols, that rev up the metabolism without hurting the heart. I prefer that you avoid caffeinated teas (and coffee or soda for that matter) because caffeine is a potent diuretic and appetite suppressant. The problem is, once caffeine's appetite suppression wears off, your appetite may come back so strong that you'll find yourself eating things you shouldn't because you just can't resist. Limit your caffeine consumption to one cup a day or less. (None is best!)

Research has shown a more pronounced feeling of "fullness" after eating a meal accompanied by green tea opposed to water alone. This can help people resist that urge to go back for seconds and decrease total calorie intake. The abundance of antioxidants in green tea are an added bonus.

Many human epidemiological and intervention studies show advantageous effects of green tea or green tea extracts for weight control, glucose management and cardiovascular risk factors. The benefits of green tea are attributed to its catechin—particularly epigallocatechin-3-gallate (EGCG)—content. While studies are just coming in on the thermogenic properties of certain foods, green tea may be at the top of the list.

In one study researchers found that capsules containing green tea extract made metabolisms run faster so they burned up more fat. This effect was thought to be attributed to diet-induced thermogenesis. In another study published in the journal Phytochemistry, researchers explored the benefits of green tea on metabolic syndrome. While studies results are preliminary, it does show the direction food science is heading in proving that maybe we are what we eat after all.

Tea drinking can be soothing and relaxing, but there is not a solid body of scientific evidence to support its use for weight loss.

Weight Watchers can help you lose weight and keep it off.

Weight Watchers offers a comprehensive approach to weight loss that can help you reach your goals.

Dr. Ozgen Dogan
Cardiologist (Heart Specialist)

Some studies have shown that green tea increases metabolism slightly. Weight loss has been seen in lab animals fed green tea. Green tea has only positive side effects. It has 200 times more antioxidants than vitamin E, decreases the absorption of cholesterol in the bowel and reduces fat production.

Dr. Mehmet Oz, MD
Cardiologist (Heart Specialist)

Current thinking is that catechins in green tea inhibit the breakdown of fats, and also inhibit production of the inflammation-causing substance nf-Kappa-B. Studies show that drinking three glasses of green tea a day reduced body weight and waist circumference by 5 percent in three months. It also increases metabolism (all non-herbals have substances that increase the metabolic rate).

YOU: On A Diet Revised Edition: The Owner's Manual for Waist Management

More About this Book

YOU: On A Diet Revised Edition: The Owner's Manual for Waist Management

For the first time in our history, scientists are uncovering astounding medical evidence about dieting -- and why so many of us struggle with our weight and the size of our waists. Now researchers are unraveling biological secrets about such things as why you crave chocolate or gorge at buffets or store so much fat.Michael Roizen and Mehmet Oz, America's most trusted doctor team and authors of the bestselling YOU series, are now translating this cutting-edge information to help you shave inches off your waist. They're going to do it by giving you the best weapon against fat: knowledge. By understanding how your body's fat-storing and fat-burning systems work, you're going to learn how to crack the code on true and lifelong waist management.Roizen and Oz will invigorate you with equal parts information, motivation, and change-your-life action to show you how your brain, stomach, hormones, muscles, heart, genetics, and stress levels all interact biologically to determine if your body is the size of a baseball bat or of a baseball stadium. In YOU: On a Diet, Roizen and Oz will redefine what a healthy figure is, then take you through an under-theskin tour of the organs that influence your body's size and its health. You'll even be convinced that the key number to fixate on is not your weight, but your waist size, which best indicates the medical risks of storing too much fat.Because the world has almost as many diet plans as it has e-mail spammers, you'd think that just about all of us would know everything there is to know about dieting, about fat, and about the reasons why our bellies have grown so large. YOU: On a Diet is much more than a diet plan or a series of instructions and guidelines or a faddish berries-only eating plan. It's a complete manual for waist management. It will show you how to achieve and maintain an ideal and healthy body size by providing a lexicon according to which any weight-loss system can be explained. YOU: On a Diet will serve as the operating system that facilitates future evolution in our dieting software. After you learn about the biology of your body and the biology and psychology of fat, you'll be given the YOU Diet and YOU Workout. Both are easy to learn, follow, and maintain. Following a two-week rebooting program will help you lose up to two inches from your waist right from the start.With Roizen and Oz's signature accessibility, wit, and humor, YOU: On a Diet -- The Owner's Manual for Waist Management will revolutionize the way you think about yourself and the food you consume, so that you'll diet smart, not hard. Welcome to your body on a diet.

Continue Learning about Tea & Health

Calm Your Nerves with a Cuppa This
Calm Your Nerves with a Cuppa This
It's calorie free and full of disease-fighting antioxidants, and it can also help turn your simmer-down switch from "frenzy" to "phew." We're talking...
Read More
Is tea a healthy alternative to coffee?
Margaret FloydMargaret Floyd
Tea is a great alternative to coffee, in particular the antioxidant-rich green and white teas. T...
More Answers
Is hot green tea better for me than cold green tea?
As long as you steep it long enough to release the antioxidants, you can drink it hot or cold and ge...
More Answers
What Type of Tea Will Help Me Sleep?
What Type of Tea Will Help Me Sleep?

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.