The Claim
In women with obesity, a 1-month very-low-calorie ketogenic diet is associated with increased protein oxidation and lean tissue loss, indicating that glucose demand drives muscle protein breakdown despite the presence of ketone bodies.
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 women with obesity, following a very-low-calorie ketogenic diet for one month leads to higher breakdown of muscle protein and loss of lean tissue, driven by the body's requirement for glucose even when ketone bodies are available.
See the scientific wording
In women with obesity, a 1-month very-low-calorie ketogenic diet is associated with increased protein oxidation and lean tissue loss, suggesting that the body’s need for glucose drives muscle breakdown even in the presence of ketone bodies.
When carbohydrate intake is extremely low, the liver runs out of stored sugar, so the body breaks down muscle to make new glucose for organs that cannot use fat or ketones. Even though the brain and muscles start using ketones for energy, some tissues still require glucose, so the body keeps breaking down muscle protein to keep blood sugar stable.
What the research says
1 studyEven though the body is using fat and ketones for energy, it still breaks down muscle to make glucose for parts of the body that need it — and this study shows that’s exactly what happened in women on a very low-calorie keto diet.
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.