Myth 2: Diet sodas make you gain weight.
Fact: While you may have read that diet beverages make you gain weight, a recent clinical trial found just the opposite. In the 12-week study, published in the journal Obesity, dieters who drank diet beverages lost 13 pounds on average — 44 percent more than subjects drinking water only, who lost an average of nine pounds. What's more, the diet-soda drinkers reported feeling more satisfied. This study adds to a substantial body of research demonstrating that low-calorie sweeteners and the diet beverages that contain them do not hinder but can in fact help with weight loss. Two peer-reviewed studies published in the American Journal of Clinical Nutrition by researchers from the University of North Carolina in 2012 and 2013 randomly assigned subjects to drink either water or diet beverages (without making any other changes to their diet). After six months, the diet-beverage group had a greater likelihood of reaching a meaningful amount of weight loss — five percent of one's body weight — compared to the control group. These studies reinforce that if you're trying to lose weight, diet beverages may help you peel off pounds, as they can help you achieve and maintain a lower-calorie eating plan.