Keto Go UkSo what then does the diet comprise? Let's look at that in detail. We have already stated that it is essentially constituted of lean meat, nuts, seeds and berries whilst eschewing grains, dairy products and refined processed foods. But in what quantities and ratios, one may ask should these foods be taken? Well because the claim is that protein comprises 19%-35% of the calories in hunter-gatherer diets Cordain stipulates that the diet calls for a similar amount, meaning more proteins and meat.