Major Brands of Gluten-Free by Ingredient Candy Bars These major brands of candy bars are widely available, are gluten-free by ingredient and allergen disclosures, and deliver good bang for the buck. If you're a candy bar lover looking for a reliable source of gluten-free candy bars, it's always best to look for bars that specifically marked 'gluten-free,' however, many of the bars in this list have been consumed for years by celiacs without issues, and don't contain any gluten ingredients. Note that although some of these bars do not use 'gluten-free' on their labels, they do list all ingredients and disclose whether they contain any of the top 8 allergens. Image: CC BY-ND 2.0-jon_a_rossĬ (Updated on ) - We've had more than a few requests for a handy list of top candy bars that are gluten-free. Caption: Snickers candy bars are gluten-free.