Lactate is formed in all except
Anaerobic glycolysis does not occur in the brainTherefore lactate is not formed in the brainMost tissues have at least some requirement for glucose. In the brain, the requirement is substantial, and even in prolonged fasting, the brain can meet no more than about 20% of its energy needs from ketone bodies.Ref: Harper&;s biochemistry; 30th edition; page no: 168
RBC
Lens
Brain
Testis
Metabolism of carbohydrate