The Protein Metabolism of Young College Women Consuming Self-Selected Diets

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Abstract
The average daily protein intake of 171 young college women on self-selected diets ranged from 19 to 113 gm protein with an average of 52 gm/day. The subjects absorbed from 65 to 98% of the ingested protein with an average absorption value of 85%. Six of the young women consumed 75 or more grams of protein daily, 66 consumed from 55 to 75 gm and the remainder (102) less than 55 gm/day. Sixty-six per cent (112) of the women were in positive protein balance on these intakes. Group I (under 20 years) ingested an average of 0.80 ± 0.18 gm protein/kg while group II (over 20 years) consumed 0.88 ± 0.19 gm/kg of protein. When the ingested protein was distributed according to the height of the subjects, the average protein intake was 0.33 ± 0.08 gm/cm for group I and 0.34 ± 0.06 gm/cm for group II.