Here’s another reason besides blood pressure to hold the salt: New Australian research says salt causes you to eat more food and consume more calories. Researchers tested four different combinations of macaroni and sauce on 48 volunteers, mixing high- and low-salt choices with high- and low-fat. At each lunchtime meal, participants were told they could eat as much as they wanted until they felt comfortably full; investigators measured amount eaten as well as eating speed. In both the low- and high-fat meals, people ate 14% more of the high-salt option than the low-salt option. The study was published in the Journal of Nutrition.