GFCF diet

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I personally haven't done GFCF diet, but I am wondering about other people here.

Never heard of it......

It stands for "gluten free casein free". The theory is that autistics poorly disgest gluten and casein and because of the leaky gut the undisgested gluten and casein escapes their stomach walls and get to their brain and acts in a opium-like manner which results in autistic symptoms. So by getting rid of gluten and casein you will avoid this problem thus alleviate the symptoms of autism.

Some people who aren't autistic also have the same problem. It's called non-celiac gluten sensitivity. It's more likely if anti-gliadin antibodies are positive (the older, less specific test for celiac disease). I think dairy/casein is usually the bigger problem in some people who are autistic but I'm not sure if there is a test for it. There are food intolerance tests that measure IgG antibodies but many lab tests for it are inaccurate so allergists recommend doing a food elimination diet to see if you have a non-allergic intolerance or sensitivity to any foods.

Food intolerance can cause a sort of "brain fog" similar to what some people with seasonal allergies get when the pollen count is high that has a general effect on the brain which is why avoiding foods can make socializing easier for some people. It's not just gluten or casein. You can be affected by other foods as well.

Wikipedia article on it - https://en.wikipedia.org/wiki/Non-celia ... ensitivity

It may cause sloppy thinking, like not defining one's terms.

I saw this abbreviation being widely used on autism message boards thats why I assumed everyone knows what it is. But I saw it back over 10 years ago. So could it be this diet went out of fashion? It is a bit counter-intuitive since -- among non-autistic people -- watching for gluten became a lot more common (I didn't see so many gluten free labels 10 years ago). So could it be that 10+ years ago this diet was thought of as autism thing while today its thought of as general thing?

For myself I don't think GF/CF would work - I've tried gluten-free breads and biscuits and they don't agree with me.
I've gone back to eating a full gluten wheat/rye bread as I find I can digest that particular type OK.
My issues seem to be more with whole grains, they make me ill, I have to eat the refined stuff.

I've also tried to go organic as far as possible, as I have a theory that the issue is not the gluten so much as the pesticides they use on the grain crops.

Not a big fan of dairy, I mainly only have milk in my tea/coffee and cheese in my sandwiches, but it doesn't seem to do me any harm.