The Claim
In healthy older men, habitual protein intake at 0.7 g/kg/day versus 1.5 g/kg/day for 14 days does not result in a significant difference in basal muscle protein synthesis rates.
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 older men, consuming either 0.7 or 1.5 grams of protein per kilogram of body weight daily for two weeks results in the same baseline rate of muscle protein synthesis.
See the scientific wording
In healthy older men, basal muscle protein synthesis rates are not significantly different between those habituated to low (0.7 g/kg/day) or high (1.5 g/kg/day) protein intake for 14 days, suggesting that long-term protein intake does not alter the baseline rate of muscle protein turnover.
The body maintains a steady rate of muscle protein building regardless of how much protein is eaten daily, because the cellular machinery that controls protein production only activates when amino acid levels rise above a fixed threshold, and this threshold does not change with long-term eating habits.
What the research says
1 studyEven if older men eat a little or a lot of protein every day for two weeks, their muscles still make new protein at the same slow rate when they haven’t eaten — the amount they eat doesn’t change this baseline speed.
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.