Most people who are gluten-free would agree that gluten-free foods tend to be costlier. When these foods are required for medical reasons, is it possible to deduct them from your taxes as a medical expense?
To file for this type of deduction, it is necessary to keep receipts throughout the year for gluten-free foods purchased. The amount which could be considered a medical expense would be the amount spent over what would have been spent for comparable non-gluten-free products. The full cost of products like xanthan gum which do not have a non-gluten-free counterpart can be considered.
It is also necessary to have documentation of diagnosis of a gluten-related disorder.
Finally, to deduct qualified medical expenses, your total medical expenses must exceed 10 percent of your adjusted gross income. This last requirement may mean that it is not worth the trouble of documenting gluten-free food expenses, unless additional medical expenses existed to take you over 10 percent of adjusted gross income.
Additional information can be found here.