I give “gluten free” a pass because it’s not always obvious. Some people do have very severe reactions and some products do, unsuspectingly, contain gluten in the form of filler content or for some other mechanical use. Sausage is specifically known to use wheat product as filler and binder. Same for deli meats and veggie burgers. Some places will even throw breadcrumbs into their ground beef for burgers to fake it’s tenderness, so it crumbles like a meatloaf would.

Then there’s seasonings. Potato chips are made from potatoes, right? But not all chips are potato chips. You’d hope a gluten-issue person would be able to identify pita chips or bagged crackers from the chips selection would have gluten, but it turns out, despite being a corn chip, Dorito dust can affect gluten sensitivities. Soy sauce and malt vinegar are issues, and seasoning mixes use flour to help distribution