The benefits of ketogenic and low-carb diets are irrefutable: gains for medical conditions like epilepsy (source), Alzheimer’s disease, Parkinson’s disease, autism, depression, headaches, brain injury, cancer, PCOS, narcolepsy and metabolic deficiencies (source). There are thousands of cases of weight loss for obese patients who would otherwise have lost hope (see some amazing examples here). The Keto diet also offers benefits …