<<Disclaimer: Verify this information before applying it to your situation.>> I recently contacted the company that produced Nakano Vinegars. This is their response. Becky _____ Thank you for your recent inquiry via our website. In regard to our Nakano products, all our vinegars are gluten free, including: Natural Original Roasted Garlic Red Pepper Balsamic Blend Italian Herb Seasoned Red Wine Vinegar Roasted Garlic Pesto The Food Allergen Labeling and Consumer Protection Act defines the eight major food allergens as milk, eggs, soybeans, tree nuts, peanuts, wheat, fish and Crustacean shellfish. None of these ingredients appear in our vinegar products. I hope this helps. Many thanks, Christina Couret Mizkan Americas (formerly Nakano Foods) *Support summarization of posts, reply to the SENDER not the CELIAC List*