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Can Vitamin D Cure ED?


Vitamin D is being touted on many websites as the latest “cure” for erectile dysfunction. A research survey in 20211 found that a Vitamin D deficiency is associated with an increased risk of erectile dysfunction.

Vitamin D may help with the production of testosterone. However, the association between Vitamin D and testosterone has not been proven. In fact, studies have yielded conflicting results.

A study conducted on 20112 concluded that “vitamin D supplementation might increase testosterone levels”

However, another study in 20183 found that “Vitamin D treatment had no effect on serum TT levels in middle-aged healthy men with low TT levels.”

The majority of cases of ED are not caused by a testosterone deficiency, and studies have shown that raising testosterone levels usually does not improve erectile dysfunction, even in men with Low T (See Does Low Testosterone Cause Erectile Dysfunction?).


A Vitamin D deficiency is not a significant cause of erectile dysfunction, and increasing Vitamin D will probably not improve ED for most men.

However, if you’d like to be sure your getting enough Vitamin D for general health reasons, the best way to achieve this is by getting plenty of sunlight, and eating foods that are rich in vitamin D (fatty fish, liver, red meat, cheese, egg yolks, and fortified milk or juice, ).

If you choose to take a vitamin supplement, do not exceed the recommended daily value of 20 mcg (800 IU). Larger doses of vitamins don’t help the body, and can actually be harmful.


  1. Canguven, Onder; Al Malki, Ahmad H. “Vitamin D and Male Erectile Function: An Updated Review.” World Journal of Men’s Health. January 2021; 39(1): 31–37. <>
  2. Pilz, S; Frisch, S; Koertke, H; Kuhn, J; Dreier, J; Obermayer-Pietsch, B;, Wehr, E; Zittermann, A. “Effect of vitamin D supplementation on testosterone levels in men.” Hormone and Metabolic Research. March 2001; 43(3):223-5.
  3. Lerchbaum, E; Trummer, C; Theiler-Schwetz, V; Kollmann, M; Wölfler, M; Heijboer, A C; Pilz, S; Obermayer-Pietsch, B. “Effects of vitamin D supplementation on androgens in men with low testosterone levels: a randomized controlled trial.” Journal of Clinical Endocrinology & Metabolism. November 2018. 10.1007/s00394-018-1858-z.

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