In fact, Enviga is  a new green tea and caffeine beverage from the Coca Cola Company that claims to “help burn calories by gently increasing your metabolism.” Their website says that since “each can of Enviga contains only 5 calories, you end up burning more calories than you consume - so for the first time you can actually ‘drink negative.’” That claim is reminiscent of the old joke about  a man boasting that his car was so fuel… [read post]