The Claim
During 60-hour fasting in healthy men, alanine is the most significantly increased glycogenic amino acid released from skeletal muscle, exhibiting a 59.4% rise, and serves as a primary substrate for hepatic gluconeogenesis.
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 a 60-hour fast, healthy men release more alanine from their muscles than any other amino acid that can be turned into glucose, with a 59.4% increase, and this alanine is used by the liver to produce glucose.
See the scientific wording
Alanine is the most significantly increased glycogenic amino acid released from skeletal muscle during 60-hour fasting in healthy men, with a 59.4% rise, supporting its role as a primary substrate for hepatic gluconeogenesis during early starvation.
When food is not eaten for 60 hours, the body lowers insulin levels, which tells muscles to break down their proteins. This releases alanine into the blood, and the liver uses that alanine to make glucose so the brain and other organs keep getting energy.
What the research says
1 studyStudy: Effects of brief starvation on muscle amino acid metabolism in nonobese man.
When people don’t eat for 60 hours, their muscles release more alanine than usual—by almost 60%—and this alanine helps the liver make glucose for energy. The study shows this happens, so alanine is a key fuel during fasting.
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.