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008 241031s1978 -us|||po p||| 00| 0 eng d
022 _a0022-3166
022 _a1541-6100 (Online)
024 8 _ahttps://doi.org/10.1093/jn/108.1.90
040 _aMX-TxCIM
041 _aeng
100 1 _aGarza, C.
_934063
245 1 0 _aHuman Protein Requirements :
_bInterrelationships between energy intake and nitrogen balance in young men consuming the 1973 FAO/WHO safe level of egg protein, with added non-essential amino acids
260 _aUnited States of America :
_bAmerican Society for Nutrition ;
_bElsevier B.V.,
_c1978.
500 _aPeer review
520 _aOur recent studies have shown that the 1973 FAO/WHO “safe level of intake” of egg protein (0.57 g/kg/day) is inadequate for maintaining protein nutritional status in young men receiving generous energy intakes. Therefore, an experiment was conducted to determine nitrogen (N) balance and the energy intake needed to support it when supplementary N, equivalent to 0.23 g of protein (N × 6.25)/kg/day from a nonessential amino acid mixture, was added to a diet containing 0.57 g of egg protein/kg/day. Four young men, 20 to 21 years old, participated in the 58- to 79-day metabolic N balance study. This group required significantly lower energy intakes to maintain N balance than a previously studied group fed only 0.57 g of egg protein under identical conditions. The energy intakes predicted to maintain N balance were approximately 10 to 15% less than the requirements estimated from body weight and N balance data. Present results, although based on a limited number of subjects, suggest that total N may be the limiting factor in short-term N balance at the 1973 FAO/WHO egg protein intake level for a significant proportion of young adult male populations. Long-term metabolic studies will be necessary before the practical significance of the observations can be determined.
546 _aText in English
650 7 _aHuman nutrition
_2AGROVOC
_911480
650 7 _aProtein requirements
_2AGROVOC
_933955
650 7 _aEssential amino acids
_2AGROVOC
_917323
650 7 _aNitrogen balance
_2AGROVOC
_933890
700 1 _aScrimshaw, N.S.
_9688
700 1 _aYoung, V.R.
_934064
773 0 _dUnited States of America : American Society for Nutrition ; Elsevier B.V., 1978.
_gv. 108, no. 1, p. 90-96
_tThe Journal of Nutrition
_wG444562
_x0022-3166
942 _2ddc
_cJA
_n0
999 _c68041
_d68033