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蔬菜含有人体必须的若干营养成分。各种维生素主要来自蔬菜,如果人体缺乏维生素就会引起多种疾病;人体组织中含有20多种矿物质,而蔬菜提供的矿物质以钙、铁、磷为主,它能调节生理功能,保持人体健康;有些蔬菜含有较多的蛋白质和氨基酸;蔬菜的叶部和茎部还含有丰富的纤维素,可刺激大肠蠕动,有促进消化和预防便秘的作用。人们在长期食用蔬菜的经历中,逐渐形成一个共识,宁可其它食品少吃,蔬菜不可不吃。
Vegetables contain certain nutrients that the body must have. Various vitamins are mainly from vegetables. If the body lacks vitamins, it can cause many diseases. There are more than 20 kinds of minerals in human tissues. The minerals provided by vegetables are mainly calcium, iron and phosphorus. They can regulate physiological functions and maintain Human health; some vegetables contain more protein and amino acids; leaves and stems of vegetables are also rich in cellulose, can stimulate the peristalsis, promote digestion and prevent constipation. People in the long-term experience of eating vegetables, and gradually form a consensus, rather eat less food, vegetables must eat.