营养是指机体摄取、消化、吸收和利用食物或养料的整个过程,也用以表示食物中营养素含量的多少和质量的好坏。营养素是指饮食中所含的维护机体健康,以及提供生长发育和劳动力所需要的各种营养成分,包括蛋白质、糖类、脂肪、无机盐、维生素、纤维素和水等七大类。当人体所需的营养 Nutrition refers to the body’s intake, digestion, absorption and utilization of food or nutrients throughout the process, but also to indicate the amount of food nutrients and quality of good or bad. Nutrient refers to the diet contains the maintenance of health, as well as provide the growth and labor required for a variety of nutrients, including protein, carbohydrates, fats, inorganic salts, vitamins, cellulose and water seven categories. When the human body needs nutrition