The Claim
In healthy older adults consuming 1.5 g/kg lean body mass of protein daily, an even distribution of protein intake across three main meals (30% per meal) results in a more positive whole-body protein net-balance over an 11-hour period than a skewed distribution (15% at breakfast and lunch, 60% at dinner), due to reduced whole-body protein breakdown rates during the morning and afternoon hours.
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.
When healthy older adults consume 1.5 grams of protein per kilogram of lean body mass daily, spreading that protein evenly across three meals leads to a greater net gain in whole-body protein over 11 hours than consuming most protein at dinner, because protein breakdown is lower in the morning and afternoon with even distribution.
See the scientific wording
In healthy older adults consuming 1.5 g/kg lean body mass of protein daily, an even distribution across three main meals (30% per meal) results in a more positive whole-body protein net-balance over an 11-hour period compared to a skewed distribution (15% at breakfast and lunch, 60% at dinner), primarily due to reduced whole-body protein breakdown rates during the morning and afternoon hours.
When protein is spread evenly across meals, amino acids stay at higher levels in the blood during the morning and afternoon. This signals the body to slow down the process that breaks down proteins, so less protein is lost overall. When most protein is eaten at dinner, amino acid levels drop earlier in the day, and the body breaks down more protein to meet its needs.
What the research says
1 studyWhen older adults eat the same amount of protein at breakfast, lunch, and dinner, their bodies break down less protein during the day than when they eat most protein at dinner. This means they keep more protein overall, even if their muscles don’t build faster.
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.