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> Carbs create more energy for the body and proteins with fat make more food for the brain I was under the impression that the brain, almost uniquely among hum
by philsnow 3y ago
> Carbs create more energy for the body and proteins with fat make more food for the brain
I was under the impression that the brain, almost uniquely among human tissues, requires glucose for energy (whereas most other tissues can use ketones). How do carbs create energy "for the body" and not for the brain?
- singingfish 3y agoI believe this is not quite right. I think it's due to the blood brain barrier. Brain tissue has only limited capability for anaerobic respiration compared to the rest of the body, can't metabolise fats for energy, and has no ability to store glycogen (which happens in muscle tissue and the liver), so any glucose has to get sent up there by other systems.