Go for Green Tea
Green tea contains caffeine and the antioxidant epigallocatechin gallate (EGCG), stimulants that increase the number of calories
you burn during a 24-hour period. The boost is slight, roughly 100 calories, but it can make a difference if you drink the
beverage regularly, suggests an article in the Journal of the American College of Nutrition.
Take Charge: Sip five or six cups of unsweetened iced or hot green tea (the amount shown to have metabolic health benefits) throughout the day. If you want to go sans caffeine, the metabolism-boosting EGCG can still be found in the decaf brew, although it is not as potent.