Yes, you can deduct vitamins if they are specifically recommended by your doctor as treatment for your medical condition. If you take them to maintain your general health - they are not deductible.
Per IRS: "You can't include in medical expenses the cost of nutritional
supplements, vitamins, herbal supplements, “natural
medicines,” etc. unless they are recommended by a
medical practitioner as treatment for a specific medical
condition diagnosed by a physician. These items are
taken to maintain your ordinary good health and aren't for
medical care.
For a list of all deductible
medical expenses, please click
here.
