The Claim
In elderly men over 70 years of age, a protein intake of 0.8 g/kg/day for 10 weeks is associated with a mean reduction in appendicular lean mass of 0.64 kg under controlled conditions.
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.
Elderly men over 70 who consume 0.8 grams of protein per kilogram of body weight daily for 10 weeks lose an average of 0.64 kilograms of muscle in their arms and legs.
See the scientific wording
In elderly men over 70, a protein intake of 0.8 g/kg/day for 10 weeks is associated with a reduction in appendicular lean mass (mean: -0.64 kg), suggesting the current RDA may be insufficient to maintain muscle mass under controlled conditions.
When older men eat too little protein, their blood does not get enough amino acids to keep their muscles growing. Without enough amino acids, especially leucine, the signal that tells muscles to build new protein turns off. This causes muscles to break down more than they build, so arm and leg muscle mass decreases over time.
What the research says
1 studyIn older men, eating the usual recommended amount of protein for 10 weeks caused them to lose muscle in their arms and legs—even when they ate enough calories. Eating twice as much protein kept their muscle stable or even helped them gain some.
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.