The Claim
In healthy humans, insulin completely suppresses fasting-induced muscle amino acid release despite impaired glucose disposal, indicating preserved insulin sensitivity for antiproteolytic action during short-term starvation.
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.
During short-term fasting, insulin stops the breakdown of muscle protein into amino acids even when it fails to promote glucose uptake, showing that its ability to protect muscle from breakdown remains intact.
See the scientific wording
In healthy humans, insulin completely suppresses fasting-induced muscle amino acid release despite impaired glucose disposal, indicating preserved insulin sensitivity for antiproteolytic action during short-term starvation.
When the body is fasting, muscles start breaking down protein to release amino acids into the blood. Insulin stops this process by turning off the cellular machinery that tears down proteins, even when insulin can no longer help cells take in sugar. This keeps amino acids from being wasted, preserving muscle mass.
What the research says
1 studyStudy: Effect of starvation on human muscle protein metabolism and its response to insulin.
Even when your body stops responding to insulin for lowering blood sugar during a fast, insulin still works to stop your muscles from breaking down protein — so your muscles don't waste away.
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.