The Claim
A blunted increase in muscle protein synthesis (MPS) in response to feeding is a common feature in aging, disuse, and wasting diseases, and this impaired postprandial MPS response appears to be a key mechanism underlying the loss of skeletal muscle mass in these conditions, rather than chronic alterations in basal MPS or muscle protein breakdown (MPB).
What the research says
Roughly balanced
Support and challenge are close. The picture may shift as more studies come in.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
As we get older or if we're inactive or sick, our muscles don't build new protein as well after eating — and that's a big reason why we lose muscle, not because of changes in how our muscles work when we're not eating.
See the scientific wording
A blunted increase in muscle protein synthesis (MPS) in response to feeding is a common feature in aging, disuse, and wasting diseases, and appears to be a key mechanism underlying the loss of skeletal muscle mass in these conditions, rather than chronic changes in basal MPS or muscle protein breakdown (MPB).
What the research says
1 studyThe study shows that as people age or become inactive, their muscles don’t build protein as well after eating, which helps explain muscle loss. This supports the idea that it’s not about constant muscle breakdown, but about not repairing and growing muscle after meals.
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.