Ground beef and eggs are my major food groups. I occasionally eat steak, liver, and bone broth. Butter and heavy cream every now and then. I've been mostly carnivore (still sometimes have hamburgers, pizza, potato chips) for maybe 8 months now. The biggest benefit of it has been that it seems to have eliminated my IBS I've had since 6th grade.
Broth is very good for your gut, restores the lining. Supposedly the lining of the gut can be damaged by nightshade veggies like tomatoes, peppers or eggplants.