<<Disclaimer: Verify this information before applying it to your situation.>> As a Dairy Queen owner and celiac I can assure you that Dairy Queen softserve, both chocolate and vanilla, are gluten-free. Please check the ingredients in toppings though as the hot fudge is not gluten-free and the chocolate toppings for shakes and sundaes may or may not be gluten-free depending on which of the two suppliers each DQ receives toppings from. In my DQs, we do not break up our own candy toppings....they come that way from the candy manufacturer. I usually stick to fruit toppings, myself. Also be careful that when ordering a Blizzard they clean the spindle first to make sure no Oreo cookies were left on it. Vicki WA state