LEA PATERSON / SCIENCE PHOTO LIBRARY LEA PATERSON / SCIENCE PHOTO LIBRARY
Salt added to food. Woman adding salt from a salt- cellar to a salad meal. Table salt consists of crystals of sodium chloride. It is an essential part of the diet that is mainly obtained as part of a normal diet. Excess salt intake may lead to raised blood pressure. Salt is added to food as a flavouring.
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