Which of the following statement is true about Net Protein Utilization?
Correct Answer: It is the ratio of total nitrogen retained by total nitrogen intake multiplied by 100
Description: Ans. b. It is the ratio of total nitrogen retained by total nitrogen intake multiplied by 100 Net Protein Utilization is the ratio of total nitrogen rerained by total nitrogen intake multiplied by 100 (AIIMS November 2008 Repeat). Net Protein Utilization = Nitrogen retained by the body/Nitrogen intake x 100 Net Protein Utilization * NPU gives a more complete expression of protein quality and best to compare protein quality0 * It is the ratio of amino acid converted to proteins to the ratio of amino acids supplied. * Experimentally this value can be determined by determining dietary protein intake and then measuring nitrogen excretion. Net Protein Utilization = Nitrogen retained by the body/Nitrogen intake x 100 * Certain foodstuffs, such as eggs or milk, rate as 1 on an NPU chart. * The protein requirement varies with the NPU of dietary protein. If NPU is high, protein requirement is low and vice versa.
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