He made a post about cheaply produce meat being unhealthy - an article and saying that he'd just had a really bad stomach bug that he thought was from eating chicken he'd bought somewhere that they'd not cooked properly.

I get the impression any suggestion that trying to be aware of where your food comes from and that you are comfortable with how it is produced ethically is taken as some sort of rabid attack on other people's right to eat meat. Some people are very defensive about their diet