Net protein utilization: Difference between revisions

Revision as of 05:13, 8 June 2021

Revision as of 07:18, 30 June 2021

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Certain foodstuffs, such as [[Egg (food)|egg]]s or [[milk]], rate as 1 on an NPU chart.

Experimentally, this value can be determined by determining [[diet (nutrition)|diet]]ary protein intake and then measuring [[nitrogen]] [[excretion]]. One formula for NPU is:{{cncitation needed|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)}

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The [[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.

The [[Digestible Indispensable Amino Acid Score]] (DIAAS) is a [[protein quality]] method, proposed in March 2013 by the [[Food and Agriculture Organization]] <ref>{{Cite web|date=2017-05-19|title=FAO proposes new protein quality measurement - IFT.org|url=http://www.ift.org/food-technology/daily-news/2013/march/07/fao-proposes-new-protein-quality-measurement.aspx|access-date=2020-11-03|archive-url=https://web.archive.org/web/20170519171831/http://www.ift.org/food-technology/daily-news/2013/march/07/fao-proposes-new-protein-quality-measurement.aspx|archive-date=2017-05-19}}</ref> to replace the current protein ranking standard, the Protein Digestibility Corrected Amino Acid Score (PDCAAS). The proposition is contested, however, due to conflicts of interest and lack of data.<ref>{{Cite web|title=Potential impact of the digestible indispensable amino acid score as a measure of protein quality on dietary regulations and health|url=https://www.researchgate.net/publication/323757610|access-date=2020-11-03|website=ResearchGate|language=en}}</ref>

==See also==

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==References==

{{reflist}}

*Suzanne Nelson et al. Ad Libitum. H₂O NaC{{full citation needed|date=November 2017}}

[[Category:Amino acids]]