The Claim
In healthy young women undergoing 60 days of bed rest, a high-protein, leucine-enriched diet (1.6 g/kg/day protein, 11.4 g/day leucine) did not prevent overall lean mass loss by day 60, with both intervention and control groups losing approximately 7% of lean mass despite differences in early nitrogen balance.
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.
Among healthy young women confined to bed rest for 60 days, consuming a high-protein diet enriched with leucine did not reduce the loss of lean body mass compared to a control diet; both groups lost about 7% of their lean mass by the end of the period.
See the scientific wording
In healthy young women undergoing 60 days of bed rest, a high-protein, leucine-enriched diet (1.6 g/kg/day protein, 11.4 g/day leucine) did not prevent overall lean mass loss by day 60, with both intervention and control groups losing approximately 7% of lean mass despite differences in early nitrogen balance.
Eating a lot of leucine initially tricks muscle cells into building more protein, but after a couple weeks, the cells stop taking in leucine and start breaking it down for energy instead. This shuts down the signal that tells muscle to grow, so muscle loss continues even though the diet stays the same.
What the research says
1 studyEven though eating more protein and leucine helped protect muscle at first, after two months of lying in bed, both groups lost the same amount of muscle — so the special diet didn’t stop the long-term muscle loss.
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.