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Line 9: Experimentally, this value can be determined by determining [[diet (nutrition)\|diet]]ary protein intake and then measuring [[nitrogen]] [[excretion]]. One formula for NPU is:{{cn\|date=November 2017}} :NPU = (({0.16 × (24 hour protein intake in grams))} - ({(24 hour urinary [[urea]] nitrogen) + 2)} - (0.1 × ([[ideal body weight]] in kilograms))) / ({0.16 × (24 hour protein intake in grams))} The [[PDCAAS\|Protein Digestibility Corrected Amino Acid Score]] (PDCAAS) is a more modern rating for determining protein quality, and the current ranking standard used by the FDA.

Net protein utilization: Difference between revisions