Age Differences in Amino Acid Profiles After Eating
Author Information
Author(s): Catrin Herpich, Donna Li, Daniela Weber, Kristina Norman
Primary Institution: German Institute of Human Nutrition Potsdam-Rehbrücke
Hypothesis
Amino acid availability after a meal differs between older and younger adults based on the protein content of the meal.
Conclusion
Healthy older adults show higher postprandial amino acid concentrations after a high-protein meal compared to younger adults.
Supporting Evidence
- Amino acid concentrations increased after both test meals over four hours.
- Older adults had significantly higher BCAA and EAA concentrations after the high-protein meal at 60 minutes.
- No age differences were observed after the normal protein meal.
Takeaway
When older people eat a meal with a lot of protein, their bodies absorb more amino acids than when younger people eat the same meal.
Methodology
Postprandial plasma amino acid concentrations were measured in older and younger adults after consuming test meals with different protein contents.
Participant Demographics
Older adults (n=40, average age 72.8 years) and younger adults (n=30, average age 25.5 years).
Statistical Information
P-Value
p<0.005
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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