Green tea: Caffeine revs weight loss
Another brew bursting with ECGC? Green tea. The combo of caffeine and ECGC found in the tea has been found to help you lose weight and keep it off, per a meta-analysis on 11 studies in the International Journal of Obesity. It does have less caffeine than black tea, making it easier to sip any time of day without having an effect on your sleep later that night.