@drcopp
FWIW I have cut my consumption of bacon and lunchmeats down very close to zero, but this is more because of fat and salt content than association with cancer. And generally eat far less red meat than I was brought up with, but again not directly with cancer in mind. As far as that goes, I don't know. The sun is a class I carcinogen yet a little sun exposure seems to have important benefits. The cancer risk from meat may come more from unbalancing your diet in that direction - yet these carnivore diets seem very popular and if they brought on added cancer risk in proportion I think we'd know it. So I still arrive at moderation in all things, and try to eat better quality red meat when I eat it at all, and also try to avoid burning it, another detail that might have outsized consequences.

The paper is quite good, they make it clear that one MUST watch nutrition more carefully if you pursue a vegan diet. Still it reads as someone supporting a decision already made, not so much concluding it from a neutral study.

I had a neighbor who was vegan and always telling me about it, he never seemed to mention supplements, yet anytime I raised an issue he was already taking care of it - he did his homework! I also surveyed a number of vegan restaurants around town with another friend who was on the Ornish diet, one impressed me, but usually I get better food at a general restaurant that has some vegan dishes, IMHO.