Net protein utilization: Difference between revisions

Revision as of 16:55, 10 October 2002

Revision as of 01:35, 13 October 2002

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Experimentally, this value can be determined by determining [[diet|dietary]] [[protein]] intake and then measuring [[nitrogen]] [[excretion]]. One formula for NPU is:

: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))

As a value, NPU can range from 1 to 0, with a value of 1 indicating 100% utilization of dietary nitrogen as protein and a value of 0% an indication that none of the nitrogen supplied was converted to protein.

Certain foodstuffs, such as [[egg]]s or [[milk]], rate as 1 on a NPU chart.

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== External links ==

:''Further information''

:* http://www.medal.org/docs_ch12/doc_ch12.05.html