When my dad was a 12-year-old kid in Red Bluff, California, circa 1928, part of the extended family was a man he knew as Uncle Jack Cotney. That they knew of, or he'd admit to, Uncle Jack had survived some 25 stand-up gunfights in his life.
Green tea is a fat burner that does speed up the metabolism, as far as energy drinks however they really speed up the heart not your metabolism. If you're looking for something that will speed up your metabolism there are better choices for that. Good Luck, Casey.
Supplements, like vitamins and green tea extract, can raise your metabolism -- but check with your doctor before you take them. (Image: Getty Images) Certain vitamins and herbals supplements can also speed up your metabolism. The B-complex vitamins help you get the most energy from your food, providing a boost that powers your workouts and revs up your metabolism, says Jones. Green tea extract, or GTE, contains caffeine, a natural metabolism booster.