James DiNicolantonio followed a diet that was approximately 98% carnivore, with less than 20g of carbs daily, for about two years, primarily consuming muscle meat.

“I did 98% carnivore four years for like yeah for like a couple years I was probably just eating you know to two pounds of like pork chops basically and maybe it wasn't pure carnivore but it was probably twenty grams or less of carbs”