I'm skeptical about a lot of the research that purports to be studying "ultra-processed foods" because as far as I can tell, nobody can actually give a coherent definition of "ultra-processed", and I think that should probably be something that you need to do before you start to study ultra-processed foods to make sure that any effect that is observed is actually a result of the food being "ultra-processed".
Is this just a class thing or what?<p>Literally everyone I know understands that processed foods are less healthy than whole foods.<p>Some, indeed many, choose to eat them anyway. But this isn't like smoking in the 40's with adverts claiming it's good for you.<p>It seems a priori obvious to me, even. Does anyone actually think that chicken nuggets and chips are as healthy as a whole roast chicken with potatoes and butter? Anyone?