Full carnivore is difficult. I try to eat mostly carnivore these days living on an island with access to incredible seafood and fresh fruit. I’d say I’m closer to keto than carnivore now. I have never used a cookbook. I basically ate steak, eggs and ground beef every day. I find the stricter and more monotonously I ate, the more I eliminated cravings. The 2 things I never gave up completely were coffee and wine.