The Claim
In healthy adults aged 65–80 with adequate daily protein intake (1.5 g/kg lean body mass), an even distribution of protein across three main meals does not result in higher muscle protein synthesis or greater utilization of dietary amino acids for muscle building than a skewed distribution where 60% of protein is consumed at dinner.
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 adults aged 65–80 consuming 1.5 grams of protein per kilogram of lean body mass daily, spreading protein evenly across meals produces the same level of muscle protein synthesis and amino acid use for muscle building as consuming most protein at dinner.
See the scientific wording
In healthy adults aged 65–80 with adequate daily protein intake (1.5 g/kg lean body mass), distributing protein evenly across three main meals does not result in higher muscle protein synthesis or greater utilization of dietary amino acids for muscle building compared to a skewed distribution where 60% of protein is consumed at dinner.
When enough protein is eaten each day, the muscles can only use a certain amount of amino acids at a time to build new proteins, no matter when those amino acids arrive. Any extra amino acids beyond that limit are not stored for later use and are instead broken down and used for other purposes.
What the research says
1 studyFor older adults who eat enough protein each day, it doesn’t matter if they spread it out over meals or eat most of it at dinner—muscles grow 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.