Totally agree that my wife going gluten free is relatively anecdotal. I didn't wish to put her through too much torture trying to run empirical tests, but I do

Totally agree that my wife going gluten free is relatively anecdotal. I didn't wish to put her through too much torture trying to run empirical tests, but I do know that there are times when she has accidentally consumed regular versions of food that she has no problems with the gluten-free version, and she has bloated. Doesn't really bloat with gluten-free. Relatively anecdotal and not the strongest causation, but definite correlation. My personal issues with spaghetti sauce however, I did control for as much as possible, purchasing enough ingredients to make multiple rounds of the rest of the meal, varying only spaghetti sauce. Basic outcome: Prego and some other local store brands from 10 years ago means diarrhea, Ragu does not. Same thing with nuts - eat peanuts, almonds, pistachios, wait an hour, diarrhea. Don't know if it's it's in my head or not, but since it happens, I try to avoid foods that make it happen.