No dish is complete without a dash of salt. Common salt is not a food item, but takes part in almost all food preparations. Apart from the taste enhancing property, it is also useful in the maintenance of fluid balance in the body, muscle irritability, acid base balance, and osmotic pressure. Salt is necessary for the human body, but in a very restricted amount. A healthy adult needs three to eight grams of common salt per day. If you avoid common salt totally from all the food sources, then its deficiency causes weakness, giddiness, loss of appetite, cramps in the muscles which are exercised the most (particularly calf muscles), twitching and convulsions, collapsed veins, cold palms and soles, and low blood pressure. Associated water deficiency produces scanty urine, dry mouth, inelastic skin, and disorientation. Acute depletion of sodium by 30% will lead to circulatory collapse and death.
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