Ive seen both (and several others) and love them.
I agree that it is hard and daunting to try and change your diet radically. I just picked one thing at a time and waited till it felt normal and then did the next thing.
Still far from where id like us to be but better than where we started.
Looking at things like the meat we buy. How much meat we eat. Using sugar alternatives (like coconut sugar etc) etc etc