Many people consider salt as a seasoning. Medically, salt composes of two components which are 40% of sodium and 60% of chloride. Therefore, 1 g of salt consists of 0.4 g of sodium. Some might think sodium is a salty substance, but, in fact, sodium is tasteless and contains in many foods. To avoid sodium toxicity does not mean you have to avoid salt because sodium is everywhere in food additives including fish sauce, soy sauce, sauces, flavor enhancer (monosodium glutamate), and baking powder (sodium bicarbonate) as well.
In our daily life, foods, snacks, and fruits consist of salt. It is found that Thai people consuming salt over 4,000 mg/ day; however, the average guideline recommends limiting sodium intake to less than 2,000 mg/ day. Our body is unable to produce sodium by itself; therefore, sodium is very important. Sodium works with potassium to maintain acid-base balance, nervous system, and muscular system functions.