Ontology highlight
ABSTRACT:
SUBMITTER: Paoletti A
PROVIDER: S-EPMC10574673 | biostudies-literature | 2023 Sep
REPOSITORIES: biostudies-literature
Paoletti Alyssa A Pencharz Paul B PB Ball Ronald O RO Kong Dehan D Xu Libai L Elango Rajavel R Courtney-Martin Glenda G
Nutrients 20230923 19
The minimum methionine requirement in the presence of excess dietary cysteine has not been determined in older adults. This study aimed to determine the minimum methionine requirement in healthy older adults using the indicator amino acid oxidation (IAAO) method. Fifteen healthy adults ≥ 60 years of age received seven methionine intakes (0 to 20 mg/kg/d) plus excess dietary cysteine (40 mg/kg/d). Oxidation of the indicator, L-[1-<sup>13</sup>C]phenylalanine (F<sup>13</sup>CO<sub>2</sub>), was us ...[more]