I think it’s intolerance. I’m autistic so of course I have IBS. It seems like I just get worse at digesting things as I get older. I went to a GI doctor years ago and got a list of foods which commonly cause issues for people with IBS, and apples are on the list.
I will look into Elstar apples. I appreciate your response! Apples are my favorite fruit, and there’s just no replacement for that crunch.





Bile acid malabsorption, eh? I need to look into that. I don’t know much about malabsorption other than what I just found online, but it looks like there’s overlap between IBS and malabsorption. Definitely worth looking into.
I’m autistic and suffer from hyper-vigilance which can absolutely cause IBS and other stomach issues, but maybe there’s more here than I realized.