You may want to think twice before sipping on that diet soda! Though choosing a drink with artificial sweetener can seem like a healthier and more waistline-friendly option than one filled with sugar, a new study is alluding to the opposite. Researchers studied 750 adults with the average age of 65 when the study began, with one group drinking diet sodas and the other abstaining, and tracked their health records over 10 years. What they found, is that diet soda group’s waist circumference grew three times as much as the other group, and the bigger guts implied metabolic syndrome, which can result in a slew of unfortunate healthy conditions and increase the risk of heart disease. So, while drinking diet soda may save some calories in the short term, if you want to invest in your health, drinking water or a beverage without artificial sweeteners is the way to go.