 Although many hypotheses have been put forward to explain how the ketogenic diet works , it remains a mystery . <unk> hypotheses include systemic acidosis ( high levels of acid in the blood ) , electrolyte changes and hypoglycaemia ( low blood glucose ) . Although many biochemical changes are known to occur in the brain of a patient on the ketogenic diet , it is not known which of these has an anticonvulsant effect . The lack of understanding in this area is similar to the situation with many anticonvulsant drugs . 
