Evidence for protein leverage on total energy intake, but not body mass index, in a large cohort of older adults
Authors' conclusion
Findings indicate clear evidence for PL on TEI, but not on BMI, likely because of aging, body composition, sarcopenia, or protein wasting.
Study context
- Population
- Community-dwelling older adults aged 67–84 years from the NuAge cohort
- Participants
- 1,699 adults
- Outcome
- Protein leverage: association of protein energy contribution with TEI (and BMI)
Methodological detailscommunity-dwelling older adults, NuAge cohort, mixture models, power functions
- Community-dwelling older adults
- NuAge cohort
- Mixture models
- Power functions
Main finding
As reported in the abstract
Protein leverage on TEI
Strength of leverage (L), protein energy contribution (EC) vs total energy intake (TEI) (strong negative association; p < 0.001)
−0.37
TEI reduction per percent of energy from protein, on average, ceteris paribus
77 kJ
Observational data: associations, not effects.
Further findings
Cohort description
- Obesity
- 53%
- Severe obesity
- 1.5%
- Mean TEI
- 7673 kJ
- EC from carbohydrates
- 50.4%
- EC from fat
- 33.2%
- EC from protein
- 16.4%
Original publication
Evidence for protein leverage on total energy intake, but not body mass index, in a large cohort of older adults. Int J Obes (Lond). Published 25 December 2023. doi:10.
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