Knock back a few soft drinks and you may push up your blood pressure. According to a new study, adults who consumed more than 74g of fructose per day (the amount in 2.5 cans of soft drinks), increased their likelihood of developing high blood pressure by 36%. That’s in addition to a bloated risk of obesity, diabetes and tooth decay. Diet soft drinks may not be any safer. In a recent Harvard Medical School study, women who drank two or more servings of artificially sweetened soft drinks daily were found to have double the risk of kidney function decline, which can destroy the organ. For all soft drinks, the devil is in the dose, so make soft drinks a special treat, or at least practice portion control.