brain homogenates of suckling rats ( but not those of adults ) incorporated label from [ 3- ( 14 ) c ] ketone bodies into lipids , but this process was slow as compared to ( 14 ) co ( 2 ) production ( < 5 % ) and much slower than the total rate of ketone-body utilization ( < 0.5 % ) .
C0022631
ketone bodies
C0022634
ketone