Which of the following statement is TRUE about NPU (net protein utilization), used in protein quality assessment?
High-Yield Explanation
Net Protein Utilization (NPU) is the ratio between nitrogen retained by the body and total nitrogen intake multiplied by 100. It is a product of digestibility coefficient and biological value divided by 100. It gives a more complete expression of protein quality than the amino acid score. In calculating protein quality, 1 gram of protein is assumed to be equivalent to 6.25 g of N. Ref: Park's Textbook of Preventive and Social medicine, 19th Edition, Page 503.