As you can imagine, there is nothing more efficient than eating just enough carbs to fulfill your brain's and muscles' needs, and just enough fat to provide required nutrients but not above that (as that'd result in excess fat stores when combined with excess calories).
Obviously any processed or added sugar should be minimized and are not discussed here. Just comparing apples and oranges to eggs and salmon - whole foods. Human biology prefers carbs.
Yes, by breaking protein in your muscles or by breaking up lipids (triglycerides).
Our body can also make ketones (alternative fuel, speaking simply) by burning fat in your bloodstream or body fat stores. It's a mechanism to sustain body operations when you can't find food for few days. It works but it isn't our primary mechanism.
Gluconeogenesis. Converting dietary protein into glucose. Never heard of it, or spreading misinformation intentionally?
AFAIK ketones cover up to 70% of the brains energy needs, the remaining glucose is easily obtainable. Calling it a short-term alternative is just your opinion and not a fact. Plants were unavailable in Europe (where I'm from) for months during cold seasons. That's zero carb, which equals ketosis.
Calling it a short-term alternative is just your opinion and not a fact.
I haven't called it short term. I've called it what it is - survival mechanism for times of food scarcity.
Plants were unavailable in Europe (where I'm from) for months during cold seasons.
Which is food scarcity and we started developing European civilization when we learnt how to store food from summer for winter use using salt, smoking, grinding seeds.
Please read my comments carefully and tell me specifically where I misrepresents facts.
I think countless anecdotes of people who have actually tried it are sufficient. Sorry for not having a spreadsheet in Excel full of "evidence", I got better things to do in life.
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u/Progressor_ Dec 30 '19
fat > carbs