Popsugar Living Healthy Eating Tips 11 Foods and Condiments That Actually Aren't Gluten-Free 11 Foods and Condiments You Thought Were Gluten-Free but Actually Aren't March 31, 2020 by Chelsea Dolan View On One Page Photo 8 of 11 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 8 Mayonnaise Some mayonnaises contain gluten. Make sure to buy jars of mayo that have a gluten-free label on it. Previous Next Start Slideshow Healthy Eating TipsCondimentsGluten-Free