Is there a role for vitamin D in human reproduction?

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AI-generated summary by claude@2026-06, 2026-06-09

This review examines evidence linking vitamin D deficiency to male hypogonadism and infertility, and discusses its potential roles in female reproductive disorders like PCOS and endometriosis.

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Abstract

Vitamin D is a steroid hormone with canonical roles in calcium metabolism and bone modeling. However, in recent years there has been a growing body of literature presenting associations between vitamin D levels and a variety of disease processes, including metabolic disorders such as diabetes and prediabetes and autoimmune conditions such as thyroid disease. This review focuses on the potential role of vitamin D in both male and female reproductive function. The vitamin D receptor (VDR) is expressed throughout central and peripheral organs of reproduction. VDR is often co-localized with its metabolizing enzymes, suggesting the importance of tissue specific modulation of active vitamin D levels. Both animal and human studies in males links vitamin D deficiency with hypogonadism and decreased fertility. In females, there is evidence for its role in polycystic ovary syndrome (PCOS), endometriosis, leiomyomas, in-vitro fertilization, and pregnancy outcomes. Studies evaluating the effects of replacing vitamin D have shown variable results. There remains some concern that the effects of vitamin D on reproduction are not direct, but rather secondary to the accompanying hypocalcemia or estrogen dysregulation.

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Condition tags

endometriosis

MeSH descriptors

Reproduction Vitamin D Animals Endometriosis Endometriosis Endometriosis Endometriosis Female Fertilization in Vitro Humans Infertility Infertility Infertility Infertility Male Polycystic Ovary Syndrome Polycystic Ovary Syndrome Polycystic Ovary Syndrome Polycystic Ovary Syndrome Pregnancy

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Cited by (9)

Source provenance

europepmc
last seen: 2026-08-10T06:11:17.106188+00:00
openalex
last seen: 2026-06-10T17:14:06.276822+00:00
pubmed
last seen: 2026-05-13T22:21:13.485820+00:00
License: CC0 · commercial use OK