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蛋白质是人体必不可少的成分。蛋白质的需要量与机体劳动强度、肌肉量的多少、年龄及营养状况等条件有关。一般人每日摄取50克左右蛋白质就可满足需要，有的人认为正常成年人蛋白质的需要量应以每公斤体重1～1．sg为标准。由于运动员在运动时蛋白质代谢加强，因此运动员蛋白质
Protein is an essential component of the body. Protein requirements and the body labor intensity, the amount of muscle mass, age and nutritional status and other conditions. The average daily intake of 50 grams of protein to meet the needs of some people think that the normal adult protein requirements should be 1 to 1 kg per kg body weight. sg as the standard. Athlete protein due to increased protein metabolism during exercise