Dear Dr. Roach: My 90-year-old mother lost her sense of smell several years ago. We think it was related to a new medication. I read that vitamin A deficiency can be responsible for this, and I have reason to believe she has a real deficiency. She also has poor night vision, dry eyes and skin problems.
Loss of smell and Vitamin A
"Vitamin A is important for eye, bone and skin health, and it is also necessary for a properly running immune system. But vitamin A is a fat-soluble vitamin, which means it is possible to get vitamin A toxicity."
