<prompt> During starvation, Brian utilizesGlycogenFattey acidsKetone bodiesNone  <response>: Brain and starvation: During starvation, a significant pa 60-70 of the energy requirement of the brain is then met by ketone bodies Fig. 8.1 Brain and acetoacetate: The brain is unable to utilize fatty acids as a source of fuel since the fatty acids complexed to albumin are unable to traverse the blood-brain barrier. But, the brain can effectively utilize acetoacetate. This is again a survival technique in diabetic and starvation ketosis.Ref: DM Vasudevan, 7th edition, page no: 100 