食盐的化学成分是氯化钠,氯和钠是人体必需的营养素。钠对维持细胞外液的渗透压、酸碱平衡、细胞内的电子活性等更是不可缺少的。尽管人体离不开盐,但并不意味着摄入的食盐越多越好,调查研究表明,膳食过咸会引起血压升高。 有人做过试验,用高盐饮食喂养小白鼠,结果40％的小白鼠出现高血压,这说明摄入过多的食盐和高血压密切相关。当然引起高血压的 The chemical composition of salt is sodium chloride, chlorine and sodium are essential nutrients for the body. Sodium is essential for maintaining the osmotic pressure of extracellular fluid, acid-base balance and intracellular electron activity. Although the human body is inseparable from the salt, but does not mean that the more salt intake, the better, research shows that dietary salty can cause high blood pressure. Some people have done experiments, fed mice with a high salt diet, the results of 40% of mice with high blood pressure, indicating that excessive intake of salt and high blood pressure are closely related. Of course it causes high blood pressure