You may see a green tea metabolism booster in any drugstore or Wal-mart. Multiple studies have been conducted concerning green tea and weight loss. It is those studies that are used as the basis for the claims made by the supplement manufacturers. While the supplement is a beneficial part of any healthy weight loss program, some of the claims made by manufacturers are overstated.
Caffeine
Optimum Nutrition Supplements
If you read the fine print on green tea metabolism boosters, you will see that results vary. For best results a healthy diet and regular exercise are recommended. If you read the label of ingredients, you will see that caffeine is added to the mix. After all of these years and even though most people consume too much caffeine, anyway, it is still considered an appetite suppressant.
Most of the studies concerning green tea and weight loss were conducted using laboratory animals. Logically speaking, it may have been the caffeine that caused the animals to lose weight, because caffeine is something that they do not normally consume. But, there was one recent study concerning green tea and weight loss that involved humans, during exercise.
Study of Green Tea Metabolism
It was a very small study, consisting only of 11 healthy men, but the results were promising. The volunteers were either given a green tea metabolism booster or a placebo. Fat oxidation was measured after both groups spent 30 minutes on an exercise bike. In the group that was given the real supplement, fat oxidation was higher than in the control group. In other words, the men that got the supplement burned more "fat" during their workout than those that did not.
When the results of this study were publicized, many people believed that green tea and weight loss are closely connected. But, there is only limited evidence of this benefit. If you are trying to lose fat, here's my recommendation.
Best Green Tea Source
There are multi-nutritional supplements that include a green tea metabolism booster, without the added caffeine, which you probably don't need. The supplements do include all of the vitamins and minerals that keep your body functioning at "optimum" levels. The idea that overweight people get enough nutrients in their diet is far from true. Hardly anyone gets all of the nutrients that they need everyday to prevent chronic diseases and extend their life-span.
Good Supplement
A supplement that contains the basic vitamins, like the B-group and "feel-good" extracts like SAM-e, as well as protein peptides like carnosine and a variety of antioxidants will help remove toxins from your digestive system and your liver. They will protect the cells of your body from free radical damage and break down heavy metals. The things that you will notice are increased energy, better looking skin, shinier hair, stronger nails and that working out is easier.
Everything that I have heard about green tea and weight loss sounds positive. But, I believe that your money is better spent on a multi-ingredient product with nutrients and green tea extract rather than green tea metabolism boosters with added caffeine. For more information see my website. -Larry L. Taylor