The antioxidants in black tea may counteract the negative effects ... For most people, consuming up to 400 micrograms of caffeine per day is not associated with adverse health effects.
Green tea is less oxidized, has a mildly earthy-grassy flavor, and usually contains less caffeine; while black tea is more oxidized, has a deeper, tannic flavor, and usually contains slightly more ...
Recently, social media posts have been buzzing about green tea as a way to shed pounds without the medication and high costs. Experts discuss the beverage's weight-loss potential.