Mechanisms Suggesting a Relationship between Vitamin D and Erectile Dysfunction: An Overview

Area of Science:

• Endocrinology
• Urology
• Cardiovascular Health

Background:

• Vitamin D deficiency (VDD) and erectile dysfunction (ED) are prevalent in aging males.
• Emerging evidence suggests a potential link between VDD and ED through various physiological mechanisms.

Purpose of the Study:

• To review the evidence and mechanisms connecting vitamin D levels to erectile function.
• To summarize meta-analytic data on the association between vitamin D and ED.
• To highlight the need for further research due to limitations in current studies.

Main Methods:

• Comprehensive review of in vitro, animal, and human studies.
• Analysis of mechanisms linking vitamin D to endothelial function and ED.
• Summary of meta-analytic evidence regarding VDD and ED.

Main Results:

• Low vitamin D levels may contribute to worsening erectile function via multiple pathways.
• Vitamin D influences endothelial function through inflammation, oxidative stress, vascular stiffness, and nitric oxide production.
• Vitamin D may impact ED by mitigating associated comorbidities like hypertension and diabetes.

Conclusions:

• Low vitamin D levels are associated with erectile dysfunction.
• Measuring vitamin D in patients with ED and supplementing when deficient is recommended.
• Further high-quality, heterogeneous clinical trials are necessary to confirm the efficacy of vitamin D supplementation for ED.