盐是人们日常生活中必不可少的调味品，缺了它饮食无味，人会觉得软弱无力，然而若长期摄入过多，则很容易影响健康，诱发疾病。饮食过咸会伤骨。饮食中钠盐过多，在肾小管重吸收方面，过多的钠离子与钙离子相竞争，使钙的排泄增加。同时，钠盐还刺激人的甲状旁腺，使之分泌出 Salt is an indispensable condiment in daily life. Without it tasteless and tasteless, people will feel weak and weak. However, if it is overeaten in the long term, it will easily affect health and induce disease. Salty diet will hurt the bone. Too much sodium in the diet, in renal tubular reabsorption, too much sodium ion competes with calcium ions, increasing calcium excretion. At the same time, sodium salt also stimulates the human parathyroid gland to secrete it