I don't think you'll find many people on this forum arguing that people should stick to lean meat.I think if I went to 85% of calories from fat, though, I'd have trouble getting enough protein. I tend to run maybe 60-70% of calories from fat.
Any more than 150 grams a day will be converted to glucose.
I have done a lot of research, through studies and reading textbooks and have found the following....Does anyone have any comments about my opinions?
So we have to go further and try to understand what our ancestors evolved to eat. And the best evidence we have suggests that they ate animals that were a lot leaner and lower in saturated fat than the ones we have available to eat today.
But let's use your example. Let's say someone weighs 165lbs @ 10% body fat. This person would need (or could tolerate, according to what you wrote) ~ 150g protein/day. Those are 450 cals/day. To make fat 85% of cals, this person would need to eat 3,000 cals/day. Feasible, but not certain.
I think no-one is in any doubt that a caveman faced with a carcass of a modern grain-fed ruminant would eat as much fat as he could before resting under a tree and then doing it again.
I'm in some doubt. In my experience, the fat of grain fed animals is not nearly as good tasting as the fat of grass fed animals, so I'm not sure a cave man would eat as much of it.
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