There may be a scientific reason you can’t seem to stop eating potato chips. A small study suggested that the salt content of some foods may be the reason why you eat more of it. “Adding salt to the meals increased how pleasant people thought the food was. They also wanted to eat more of the high-salt meals than the low-salt meals (not surprisingly), but that didn’t hold true for the high-fat foods over those low in fat. Those salt cravings seemed to influence how much people ate, too. Salt made people eat 11% more food and calories, regardless of how much fat was in the meal.” So next time you reach for a bag of chips, pour out one serving for yourself before you dig in.