The composition of salt is approximately 39.3 % sodium and 60.7 % chloride by molecular weight. Salt regulates the water content (fluid balance) of the body and plays an essential role in homeostasis. The nutritional requirement of salt has been estimated to be 1.25 g per day for adults.
Salt intake varies substantially around the world, though in developed countries, typical diets include salt far in excess of requirements. In the INTERSALT study, daily salt intake as determined by 24-h urinary sodium excretion ranged from 5 g in Trinidad and Tobago to 14 g in Tianjin, China. The average intakes were around 8–10 g per day in most western countries and 10–12 g per day in Japan and Korea.
Nasopharyngeal carcinoma is a rare malignancy, with age-adjusted incidence rates...
KeywordsGastric Cancer Pylorus Infection Nasopharyngeal Carcinoma Salt Intake Atrophic Gastritis
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