Can Vitamin D impact testosterone?
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Oct 28, 2025 · 15 min read
Vitamin D can modestly raise testosterone in men who are truly vitamin D deficient (25-hydroxyvitamin D below 20 ng/mL), likely because the testes contain vitamin D receptors and activation enzymes that may influence Leydig cell testosterone production. Here is how to tell when correcting vitamin D is a meaningful lever. It also explains when low ...