The Claim
A daily protein intake of 1.5 g per kg of lean body mass (approximately 1.0–1.2 g/kg body weight) in healthy older adults aged 65–80 maintains maximal muscle protein synthesis rates regardless of whether protein is distributed evenly or skewed across meals.
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.
In healthy adults aged 65 to 80, consuming 1.0 to 1.2 grams of protein per kilogram of body weight each day maintains the highest possible rate of muscle protein synthesis, whether the protein is spread evenly across meals or concentrated in fewer meals.
See the scientific wording
A daily protein intake of 1.5 g per kg of lean body mass (approximately 1.0–1.2 g/kg body weight) in healthy older adults aged 65–80 is sufficient to maintain maximal muscle protein synthesis rates regardless of whether protein is distributed evenly or skewed across meals.
When older adults consume enough protein each day, the amino acid leucine builds up in their muscles to a level that fully turns on the molecular switch that tells muscle cells to make new protein. This switch stays fully on no matter when the protein is eaten during the day, because the total amount of leucine over 24 hours is what matters, not when it arrives.
What the research says
1 studyThis study found that older adults built muscle at the same rate whether they ate protein evenly across meals or mostly at one meal. So, how you spread out your protein doesn't seem to matter for muscle building.
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.