Sever always asks me if it’s a preference or allergy. I’ve gone a few times and not gotten sick yet. When I asked why the omelets weren’t gluten free I learned they put pancake batter in them to make them fluffy and if I asked for straight egg with no batter I could get an omelette!
We’ve been here several times in the past few years since I found out they have gluten free pancakes. The staff is not super knowledgeable about certain food options safety if you make substitutions (burgers w/out the buns), so I stick to the stuff that is gluten free. If you go to Ihop’s website you can look more information up with ingredients. They call it “gluten friendly” because they do not guarantee that you can prevent cross-contamination (especially as a chain), but they have used separate stuff when I have gone in and been pretty good. Usually, I get the gluten friendly pancakes, hash browns, and bacon. I’ve not gotten sick.