The Claim
In healthy older adults with sufficient total daily protein intake, the muscle protein synthesis response does not differ between a regimen of multiple evenly spaced protein meals and a single large evening protein meal.
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.
For healthy older adults who consume enough protein each day, spreading protein intake across several meals does not increase muscle protein synthesis more than consuming all protein in one large evening meal.
See the scientific wording
The muscle protein synthesis response to dietary protein in healthy older adults is not enhanced by consuming protein in multiple evenly spaced meals compared to a single large evening meal, when total daily intake is sufficient.
When enough protein is eaten in a day, the muscles reach their maximum ability to build new proteins in each meal, and eating more often doesn't make them build more. The muscles can only use a certain amount of amino acids at once, and any extra is not stored for later use.
What the research says
1 studyFor older adults who eat enough protein overall, it doesn’t matter if they spread their protein across three meals or save most of it for dinner—muscle building happens at the same rate either way.
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.