Depends on the brand. All Boar’s Head deli meats are gluten free, but some ready-to-eat meats have flavorings or fillers with wheat. Be sure you read exactly what’s in the kind you buy. And be careful of store-made sandwiches, which may have been assembled on a bread-crumb-laden counter, as well as slicers that may have been used on gluten-containing meats (ask to be sure the store cleans slicers after each use to avoid cross-contamination).