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.
There are somethings we can do in terms of how we eat, plus there are some foods that can speed up metabolism, says Bedwell. Green Tea: Studies have shown that people who drink about 24 ounces per day of green tea burn 70 to 100 more calories per day due to the antioxidants called catechins.