This is something of a controversial subject. Kahlua does contain what is described as a “neutral grain spirit,” which comes from wheat. However, during the distillation process, the gluten protein is neutralized, so it should be safe for vegans to drink in theory. All of the other ingredients in Kahlúa are gluten-free, but some people with gluten sensitivity are sick when they drink it, and some are not. Therefore, if you do have a problem with gluten, you are recommended not to drink Kahlúa. If you suspect that you do have a problem with gluten, please click here to be taken through to a guide that you might find helpful.