Good news! POP Chips are now certified gluten free! While most flavors do have some seasonings that are unacceptable on the low-FODMAP diet (onion and garlic powder, mostly), they’re likely to have small amounts so depending on your level of sensitivity, they may be a great snack. I had a bag of sour cream & onion chips today and they were delicious.
To read more about each flavor and look specifically at ingredients, check out their site http://www.popchips.com/popchips/flavors/