The Claim
Standardized protein intake at 1.0 g/kg/day for women and 1.5 g/kg/day for men during 14 days of immobilization does not eliminate the sex-specific association between initial muscle size and muscle atrophy in women.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
When men and women consume standardized amounts of protein during two weeks of muscle immobilization, women with larger initial muscle size still experience more atrophy than men with similar muscle size, regardless of protein intake.
See the scientific wording
Standardized protein intake (1.0g/kg/day for women, 1.5g/kg/day for men) during 14 days of immobilization does not eliminate the observed sex-specific association between initial muscle size and atrophy in women, suggesting the relationship is not driven by differential protein consumption.
In women, lower estrogen levels during immobilization reduce the activation of muscle-building pathways, causing larger muscles to break down more than smaller ones. Men do not show this pattern because their muscle maintenance pathways stay active regardless of muscle size.
What the research says
1 studyEven when men and women ate the same amount of protein, women with bigger muscles lost more muscle during immobilization — but men didn’t. This suggests the difference isn’t because of protein intake, but something else about being female.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.