Reasonable diet, adequate nutrition, can improve the health level of a generation, occurrence and development, the prevention of various diseases prolong life, improve the quality of the nation.
Unreasonable diet, nutrition, excessive or insufficient, it can bring harm to health. Excessive dieting will because of excess nutrients cause a variety of diseases, obesity, diabetes, cholelithiasis, hyperlipidemia, hypertension, and even induce tumor, colon cancer and so. Not only seriously affect the health, will reduce the life. Long-term dietary raises the element is insufficient, can lead to malnutrition, anemia, a variety of elements, vitamin deficiency, affect the child intelligence growth, decline of human body disease resistant ability and labor, work, learning ability.
追答合理的饮食充足的营养，能提高一代人的健康水平，预防多种疾病的发生发展，延长寿命，提高民族素质。
不合理的饮食，营养过度或不足，都会给健康带来不同程度的危害。饮食过度会因为营养过剩导致肥胖症、糖尿病、胆石症、高脂血症、高血压等多种疾病，甚至诱发中瘤，结肠癌症等。不仅严重影响健康，而且会缩短寿命。饮食中长期养素不足，可导致营养不良，贫血，多种元素、维生素缺乏，影响儿童智力生长发育，人体抗病能力及劳动、工作、学习能力下降。
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