Vitamin E appears to increase intestinal absorption and tissue uptake of vitamin A. Because of this effect, some doctors have used the combination of vitamin E and vitamin A for various skin conditions that are usually treated with vitamin A alone. The addition of vitamin E improved outcomes, while allowing for lower (and safer) doses of vitamin A.
- Oaks L, Russell R, Jacob RA. Decreased serum vitamin A levels during vitamin E supplementation. Am J Clin Nutr 1978;31:716.
- Ames SR. Factors affecting absorption, transport, and storage of vitamin A. The American journal of clinical nutrition. 1969 Jul;22(7):934-5
- Gaby AR. Vitamin A. In Gaby AR. Nutritional Medicine. Concord, NH, www.doctorgaby.com, 2011; chapter 11.