Green tea is the most natural and potent of the "thermogenic" (fat-burning) substance tea. According to a report by Swedish researchers in The American Journal of Clinical Nutrition, it contains plant chemicals that stimulate fat burning 2 to 3 times longer than normal. It is very beneficial to health and longevity due to its high levels of cancer-fighting phytochemicals called catechins. The tea contains natural Vitamin C and many kinds of Amino Acids.