Many wonder whether creatine causes hair loss, but there’s actually more evidence to suggest that keto causes hair loss.
Recently, Moreno et al. found that 29.6% of keto dieters reported hair fall at 4 months. Contrastingly, 0% of low-calorie dieters reported hair fall at any time during the study.
Interestingly, subjects were only keto for 30-45 days (4-6 weeks). Thus, greater hair fall (seen at 4 months) probably persisted from the ketogenic diet period, which ended over 2 months earlier.