Get Your Caffeine From Green Tea
"Studies that have shown that epigallocatechin gallate, or EGCG, one of the compounds in green tea, can help stimulate your metabolism and help with weight loss," says Dr. Raj. The caffeine, the second metabolism booster in green tea, probably helps too, but make sure you finish your last cup at least eight hours before bedtime so the caffeine can clear your system. Also, drink green tea liberally. In several studies, three glasses appeared to be the minimum amount needed to see effects.