I know a Coeliac who is diagnosed properly - with the genetic test showing the relevant genes, then a blood test showing the antibodies and then finally a biops

I know a Coeliac who is diagnosed properly - with the genetic test showing the relevant genes, then a blood test showing the antibodies and then finally a biopsy showing damage to the gut - and they are older and travel quite a lot. The change over the last decade has been wonderfully beneficial for them. I've seen that observation repeated many times online as well, pleasure at having so many more options than just a few years ago. It's not just about restaurants either, I don't remember there being a gluten free section in the supermarket growing but now they are everywhere (Australia). I've never seen a comment suggesting the other way. Huge numbers of people have problems with modern diets, you can see it if you dig into any report on work absenteeism. It makes perfect sense if you reason evolutionarily that there would be a far greater number of "low level" allergies/problems than "high level" ones like those that cause people to go into anaphylaxis from nuts or shellfish. If allergies that can kill you quickly from fairly common things exist, i.e. not everyone suffering from them has died, then it would be suprising if lower level allergies to even rarer things were less prevalent. That's to say nothing of how little we actually understand our gut flora, i.e. not an allergy but just an unsuitability at that present moment, and how diverse it is across populations. This faux-masculine "just toughen up and eat your veggies and that thing that's making you not feel well" hides behind a mask of intellectual superiority. It sneers down its nose at people who are trying to improve their health and pretends changing your diet to alleviate symptoms of various kinds is exactly the same as homeopathy. I think it's bled over from the criticism of fad diets for weight loss that pretend to get around the laws of thermodynamics, but diets can address health in many more ways than just weight loss so not all diets should be grouped together as somehow intellectual bankrupt. It's absurd in the case of gluten where there are numerous non-classical symptoms associated with it and the only rational scientific response is to keep funding university research at the randomised double-blind peer reviewed research level. While we wait for the researchers to exhaust that research area, which will likely take decades given how, difficult it is to do studies on diet that are totally blind it will probably come through greater research into genetics and the immune system, people suffering symptoms should not be castigated for experimenting in a non-blind way on themselves. Of course that's subject to placebo and all the rest, but it's not remotely near anything like "my fad diet can defy the laws of physics".