Salt or sodium chloride is what we cannot do without in cooking. Sodium is an essential element the body needs for its fluid balance. Yet in excess, it can also upset that balance. And if you have been advised to cut down on salt or sodium for health reasons like high blood pressure, kidney or heart conditions, then it becomes a culinary challenge to whoever is cooking your food at home to reduce salt and still make the food palatable.
Under normal conditions our body requires only half a gram of sodium. But people lavish salt in foods to the point that they end up eating twenty or more times than required. Though salt requirements depend on outside weather conditions, and how much we lose through sweating, a healthy quantity is 6 grams or one teaspoon of salt. Salt or sodium chloride is only 40 % sodium. So 6 grams of salt furnishes 2400mg sodium.