<<Disclaimer: Verify this information before applying it to your situation.>> Linda, rep. at Frito-Lay 1-800-352-4477 talked with the nutritionist about the new 3-D Doritos Nacho Cheesier flavor. She stated there was no wheat or gluten in the msg. She said it was a gluten free product. Sorry I forgot to ask about the Cooler Ranch flavor. Janet Modesto, Calif. :-)