Dietary Protein and the Blood Glucose Concentration

摘要

Body proteins are being synthesized and degraded continuously (1). The estimated turnover is ～210 g/day (2). Amino acids resulting from protein degradation can be recycled (reused for synthesis), but this is incomplete. Therefore, dietary protein is necessary for maintenance of lean body mass. Also, dietary protein is required to replace protein lost from the shedding of skin, hair, nails, cells in the gastrointestinal tract, and protein-containing secretions. However, the actual losses are estimated to be only 6-8 g/day (3).