Research
Energy balance
Protein sources and physical activity were positively associated with lean mass in males and/or females.
Encouraging high-quality protein sources and physical activity is beneficial for maintaining lean mass in both sexes.
StrongSupportsmedium confidence
However, protein sources and physical activity was positively associated with lean mass in males and/or females (p < 0.05).
Why this rating
Based on a large cross-sectional study design.
Source
The Relationships between Total Protein Intake, Protein Sources, Physical Activity, and Lean Mass in a Representative Sample of the US Adults
Furong Xu et al. · Nutrients · 2020
DOI 10.3390/nu12103151
cross-sectional · n=7547Cited 3×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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