We feed our son the same Real foods we eat: an animal-based diet with some vegetables, tubers, fruit, and small bits of dairy.
We load up his plate with animal protein, maybe some sauerkraut and some berries, then some sweet potatoes if we have them. He then chooses what he eats from there.
Without fail, the meat is one of the first things he grabs. He will then eat nearly all of his heart every meal while leaving a bit of the veggie or fruit behind.
Must his biology be onto something?
After all, it craves those foods that will nourish it the most. Hence his choice to naturally eat a carnivore-based diet!