Why sugar and protein don’t mix
Combining the two may make your body hold on to fat, recent research finds. When people washed down a meal with a sugar-sweetened beverage, their metabolisms slowed, their fat storage increased, and they burned fewer calories over the next 24 hours compared with those who sipped sugar-free. The higher the meal was in protein, the greater the effect. “When you give your body sugar, which is easy to turn into fuel, it makes your metabolism less efficient, so you store the other calories for later,” says study author Dr. Shanon Casperson. So go easy on the sweet stuff in your protein smoothie and hold the soda with your steak.