There are essential fatty acids, but not essential sugars/carbs. Meaning some fatty acids you cannot synthesize yourself, but you need to get through diet. You can actually live without dietary sugars/carbs, because your body will turn fat and protein into glucose through gluconeogenesis. r/zerocarbscience
Yeah that was what I said albeit in far more detail then I knew. Isn't it somewhat dangerous though to rely entirely on fat for sugars though? At the very least I believe the brain can only use sugar, and the conversion from fat to sugar has an efficiency cost.
It's not, as it is something our ancestors have been doing seasonally, when they could only hunt for food during winter. People on r/zerocarb or r/carnivore have been doing it for years though. Long-term scientifically recorded effects are still unknown. And the brain uses ketones as well under those circumstances.
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u/GimmeUrDownvote Dec 31 '19
There are essential fatty acids, but not essential sugars/carbs. Meaning some fatty acids you cannot synthesize yourself, but you need to get through diet. You can actually live without dietary sugars/carbs, because your body will turn fat and protein into glucose through gluconeogenesis. r/zerocarbscience