I would suggest removing plant-based foods to whatever degree possible. Eliminate wheat, soy, nightshades, and other likely irritants/allergens.
My social group tends more towards heterodox dietary choices than most groups, so I have a lot of friends on “extremist” diets. It is quite apparent that the expected outcome of people who only eat meat is significantly better than the people who never eat meat. Both are likely better off than most people consuming the standard American diet, but this might just be due to increased focus on health in general rather than any specific benefit of the diet.
My social group tends more towards heterodox dietary choices than most groups, so I have a lot of friends on “extremist” diets. It is quite apparent that the expected outcome of people who only eat meat is significantly better than the people who never eat meat. Both are likely better off than most people consuming the standard American diet, but this might just be due to increased focus on health in general rather than any specific benefit of the diet.