Multiple choice general knowledge science & technology The main use of salt in the diet is to make the taste of food better produce in small amounts the hydrochloric acid required for the digestion of food ease the process of cooking increase the solubility of food particles in water Reveal answer Fill a bubble to check yourself B Correct answer Explanation The chloride from salt (NaCl) is essential for producing hydrochloric acid in the stomach, which is necessary for digestion and killing harmful bacteria. While salt enhances taste, its physiological role is more critical.