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热量平衡 产生热量的营养素有3种,即蛋白质、脂肪与碳水化合物。脂肪产生的热量为其他两种的2倍多,富含脂肪的食物称为高热量食物,以畜禽肉类为其代表。如果摄取的热量超过人体的需要而造成体内脂肪堆积,人变得肥胖,易患高血压、心脏病、糖尿病、脂肪肝等多种疾病。如果摄取的热量不足人体的需要,造成营养不良,同样可诱发多种疾病,如贫血、结核、癌症等。 健康人,为保持体重适中,蛋白质、
There are three types of nutrients calories balance heat, protein, fat and carbohydrates. Fat calories generated more than twice as much as the other two, fat-rich foods known as high-calorie foods to livestock and poultry meat as its representative. If the intake of calories than the body’s needs and cause body fat accumulation, people become obese, susceptible to hypertension, heart disease, diabetes, fatty liver and other diseases. If the intake of calories less than the needs of the human body, resulting in malnutrition, can also induce a variety of diseases, such as anemia, tuberculosis, cancer and so on. Healthy people, in order to maintain weight, protein,