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Protein Intake
Nutrition · Moderate evidence
Evidence
58
Impact
55
Adequate, evenly distributed protein to protect lean mass, especially after midlife.
- Studies
- 6
- RCTs
- 0
- Meta-analyses
- 1
Research summary
- Multiple systematic reviews, meta-analyses, and expert position papers (including PROT-AGE and ESPEN guidelines) consistently support higher dietary protein intake for preserving muscle mass and function in older adults, particularly to counteract sarcopenia and protect lean mass during weight loss.
- The evidence draws mainly on observational associations and mechanistic/expert consensus reasoning rather than large long-term randomized trials directly testing protein intake against hard clinical outcomes, and several sources are narrative reviews rather than original controlled research.
- The overall direction of evidence is consistent and biologically well-grounded, but confidence would be strengthened by more long-term randomized outcome trials rather than expert synthesis and shorter observational studies.
Metabolic HealthMuscle & StrengthWeight Management
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