盐能提供大量的钠,对人体来说,钠扮演多种至关重要的角色,它能促进蛋白质和碳水化合物的代谢和神经脉冲的传播以及肌肉收缩,还能调节激素和细胞对氧气的消耗、控制尿量生成、口渴以及产生液体如血液、唾液、眼泪等。盐对生成胃酸也非常重要。在烹调菜肴中加入食盐可以除掉原料的一些异味,增加美味。盐虽然不能多吃,但是却有许多功用: Salt can provide a large amount of sodium, and sodium plays a crucial role in the human body. It promotes the metabolism of proteins and carbohydrates and the transmission of nerve impulses and muscle contraction. It also regulates the consumption of oxygen by hormones and cells , Control of urine output, thirst and the production of liquids such as blood, saliva, tears and so on. Salt is also important for generating stomach acid. Adding salt to cooking dishes can remove some of the smell of raw materials, increase the delicious. Although salt can not eat, but there are many functions: