Even at full qitoses, the brain still wants 30 to forty % of its needs met by glucos. Even at fulkitosis, and as doctor owen showed in the early two thousand inhuman volunteers, that even at fullcitosis, only 30% of human energy needs are met by ketons. But their benefit is not as a super field for the brain. Their benefit is actually the signalling effect of mita drion coupling that actually treats nurons to a treat That's how we meet our energy needs.