Evaluation of the protein requirement in Chinese young adults using the indicator amino acid oxidation technique / 生物医学与环境科学(英文)
Biomedical and Environmental Sciences
;
(12): 655-662, 2013.
Artigo
em Inglês
| WPRIM
| ID: wpr-247153
ABSTRACT
<p><b>OBJECTIVE</b>To accurately calculate the protein requirements in Chinese young adults using the indicator amino acid oxidation technique.</p><p><b>METHODS</b>Nine women and ten men received a restricted daily level of protein intake (0.75, 0.82, 0.89, 0.97, and 1.05 g/kg), along with L-[1-13C]-leucine. Subjects' protein requirement was determined by a biphasic linear regression crossover analysis of F13CO2 data. In doing so, a breakpoint at the minimal rate of appearance of 13CO2 expiration specific to each level of dietary protein was identified. This trial was registered with the Chinese clinical trial registry as ChiCTR-ONC-11001407.</p><p><b>RESULTS</b>The Estimated Average Requirement (EAR) and the Recommended Nutrient Intake (RNI) of protein for healthy Chinese young adults were determined to be 0.87 and 0.98 g/(kg•d), respectively, based on the indicator amino acid oxidation technique.</p><p><b>CONCLUSION</b>The EAR and RNI of mixed protein are 5% and 16% that are lower than the current proposed EAR and RNI (0.92 and 1.16 g/(kg•d), respectively), as determined by the nitrogen balance method. The respective EAR and RNI recommendations of 0.87 and 0.98 g/(kg•d) of mixed protein are estimated to be reasonable and suitable for Chinese young adults.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Oxirredução
/
Composição Corporal
/
Peso Corporal
/
Testes Respiratórios
/
Dióxido de Carbono
/
Proteínas Alimentares
/
Aminoácidos
/
Metabolismo
/
Necessidades Nutricionais
Tipo de estudo:
Guia de Prática Clínica
Limite:
Adulto
/
Feminino
/
Humanos
/
Masculino
Idioma:
Inglês
Revista:
Biomedical and Environmental Sciences
Ano de publicação:
2013
Tipo de documento:
Artigo
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