When put to the test by a pair of scientists who replicated the diet though, they found few ill-effects - except at one point where they were hitting a nutritional deficiency, but corrected it by putting semi-rotten fish product (which is a dish in Inuit cooking) into their diet - because it turns out that provided certain key nutrients.

The human body can handle some surprising and varied diets, a lot simply evolved by trial and error over a long period. With modern technology, we should be able to "fail fast" over a much shorter time.

Probably more importantly: anyone putting that much thought into what they eat, what the effects of it are etc. is already doing 10x the thinking of most people about their nutrition.