The Claim
In food-deprived rats, neutralizing insulin with anti-insulin serum prevents the acute stimulation of skeletal muscle protein synthesis during refeeding.
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 rats that have been deprived of food, blocking insulin stops the increase in skeletal muscle protein synthesis that normally occurs when food is reintroduced.
See the scientific wording
In food-deprived rats, insulin is necessary for the acute stimulation of skeletal muscle protein synthesis during refeeding, as neutralizing insulin with anti-insulin serum prevents the expected increase in synthesis.
After fasting, eating triggers a surge in insulin, which binds to muscle cells and turns on a signaling chain that activates protein-building machinery. If insulin is blocked, this chain does not start, and muscle cells cannot make new proteins. A drop in stress hormone levels is also required to allow insulin to work fully, and another unknown factor is needed for complete protein synthesis recovery.
What the research says
1 studyWhen hungry rats eat again, their muscles start rebuilding — but only if insulin is present. When scientists blocked insulin, the muscles didn’t rebuild, even with food. So insulin is needed for this process.
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.