Carbs can spike your blood sugar levels, which ups cravings and snacking between meals. Acetic acid, found in vinegar, lowers carbs’ glycemic index, counteracting that blood sugar spike. One study found that dieters who drank one and a half tablespoons of apple cider vinegar at their morning meal ate about 250 fewer calories. If that sounds gross, may we recommend adding vinegar to your potato salad? It’s delish, we promise!