Green tea helps you lose weight. Of course it wonât be â20 pounds in one weekâ, but green tea has been scientifically proven to burn calories and block fat absorption. It contains high amounts of polyphenols which activate the enzyme that is responsible for dissolving excess triglyceride. In the long run, this means that green tea effectively aids in burning fat. It burns calories, increases your energy, and builds muscle which in turn boosts your metabolism even higher.