A reference would be helpful :-) Gluten and dairy are in almost all packaged foods. They drive cravability in a big way. So I'm guessing any "debunking" was

A reference would be helpful :-) Gluten and dairy are in almost all packaged foods. They drive cravability in a big way. So I'm guessing any "debunking" was funded by someone making money from this. There are a few people who are immune to the effect. You can pick them out because they either dislike or simply don't care for cheese (which is mostly casein).