To maximize muscle gain, a non-ketogenic diet is preferable to a ketogenic diet.

noli's read

The creator relies on an 8-week randomized controlled trial (RCT) conducted on 24 resistance-trained men, published in the Journal of the International Society of Sports Nutrition (Vargas et al.). The study indeed shows that the group following a non-ketogenic diet gained more muscle mass than the ketogenic group. It is scientifically sound to state that a ketogenic diet may limit maximal hypertrophy due to a reduction in anabolic signaling and carbohydrate availability for high-intensity training. However, the claim here is simplified: the study involves a very small sample and a relatively short period, which limits the scope of the conclusions over the long term. It is important to note that a ketogenic diet does not prevent muscle gain, but it appears less optimal for pure mass gains compared to a carbohydrate-rich diet. Current research therefore supports the superiority of carbohydrates for anaerobic performance and optimal muscle building, without, however, completely invalidating other approaches depending on one's goals.

the sources

No named source held this one up — that absence is part of the verdict.