Low-carbohydrate diets, especially those that avoid grains, are a popular notion for weight control. Yet most studies, including a recent systematic review and meta-analysis (7), found that low-carbohydrate vs. isoenergetic balanced diets had the same effect on weight loss, especially when looking at long-term effects on weight loss. There was little or no difference in weight loss and changes in cardiovascular risk factors up to 2 y of follow-up when overweight and obese adults, with or without type 2 diabetes, were randomly assigned to low-carbohydrate or isoenergetic balanced weight-loss diets.