The eskimoes gut ecology probably adapted to that type of eating. They probably had more proteolytic bacteria to help break down the higher protein content. In cold weathers fat and protein increase metabolism and seems to work better in colder climates. Whereas in hotter climates fruits and veggies or light foods seem to help keep the body cool to adapt to the environment. Probably why we crave more light foods in the summer time and more fatty foods in the winter. I can definetly relate to this as I have a outside job.
Some civilizations had to rely on meat only for their source of food during the winter time. But fortunately we arent under those conditions. A healthy human is designed to eat a wide variety of foods. Carbs/fiber is the preferred food of flora, but can also be the preferred food for candida. Each one of us has to adjust our diets depending whats going on in our digestive tract. I agree, A high protein diet might not be good for people that have bacterial/gut ecology imbalnces because it can produce to much ammonia and protein by products. But for healthy people it might not be as much of a problem. Extreme diets of any kind of food can be unhealthy-- even greens. The key is balanced nutrition. Unfortunately candida robs us of much needed nutrition.
I wish i could do that much fat/oil or i would. I feel like absolute crap if i do that much fat. It definetly takes time to work up to those levels. I would rather get my energy from coconut oil (mct's) than carbs.
People need to stop relying on books/or diet plans to form their diet. Each individual is different and needs to figure out what diet is best for them!