If you order takeout, the items that can be made gluten free are duplicated and listed after all of the regular menu items. One of the unique things about this Thai restaurant is that you can opt to order your food without rice if you're keto or low carb. There are also several modifiers available for more specific food allergies/aversions, such as "no green bell pepper" or "no mushrooms".
My family loved this Thai place. They have a good selection of gf foods that you can order, but the designation on the menu means they CAN do it that way if you tell them to, otherwise they contain gluten. My dish was extremely good, and my non gf family loved it also.