![Ben Smith on X: "Supplement With Vitamin D3 Vitamin D is essential for many processes in the body, including bone health and immunity. Vitamin D deficiency is one of the widespread. Fatigue, Ben Smith on X: "Supplement With Vitamin D3 Vitamin D is essential for many processes in the body, including bone health and immunity. Vitamin D deficiency is one of the widespread. Fatigue,](https://pbs.twimg.com/media/GJlh0H9XsAAqzrR.jpg)
Ben Smith on X: "Supplement With Vitamin D3 Vitamin D is essential for many processes in the body, including bone health and immunity. Vitamin D deficiency is one of the widespread. Fatigue,
![Sex differences in vitamin D metabolism, serum levels and action | British Journal of Nutrition | Cambridge Core Sex differences in vitamin D metabolism, serum levels and action | British Journal of Nutrition | Cambridge Core](https://static.cambridge.org/binary/version/id/urn:cambridge.org:id:binary:20230512135342743-0510:S0007114522000149:S0007114522000149_fig2.png?pub-status=live)
Sex differences in vitamin D metabolism, serum levels and action | British Journal of Nutrition | Cambridge Core
![Biomolecules | Free Full-Text | Mechanisms Suggesting a Relationship between Vitamin D and Erectile Dysfunction: An Overview Biomolecules | Free Full-Text | Mechanisms Suggesting a Relationship between Vitamin D and Erectile Dysfunction: An Overview](https://pub.mdpi-res.com/biomolecules/biomolecules-13-00930/article_deploy/html/images/biomolecules-13-00930-g001.png?1685616085)