The conclusion from such dietary changes always seems to be that being more conscious about your food is key. High quality ingredients, no pesticides or enhancers that are meant to make crap taste less crap. Then in the end it doesn't matter whether you go carnivor or vegan or whatnot. Just don't eat everything deep-fried or full of refined sugars.

Well, I fully agree with your first two sentences. Then genetics likely are the next in line for what is healthy, not harmful, for your body.