碳水化合物、蛋白质、矿物质、脂肪、水、维生素和纤维素是人们熟知的七大营养素,对生命的维持至关重要。另外,还有些营养成分对健康的影响甚大,却又极易被疏忽,又称“编外”营养素,其中较重要的有核酸、酶、前列腺素、激素等。 人体内核酸有两个来源,一是自身合成,二是食物供给。但是人到30岁以后,合成核酸的 Carbohydrates, proteins, minerals, fats, water, vitamins and cellulose are seven well-known nutrients that are crucial to the maintenance of life. In addition, some nutrients have a great impact on health, but also easily overlooked, also known as “extranodal” nutrients, of which more important are nucleic acids, enzymes, prostaglandins, hormones and so on. There are two sources of human nucleic acid, one is its own synthesis, the second is the food supply. But when people are 30 years old, they synthesize nucleic acids