Hormone Health Hub: Expert Insights on Testing, Balance & Better Living — vitamin D and newborn health

Vitamin D is not just a vitamin — it is a steroid hormone that plays a critical role in fertility, conception, placental development and fetal health. From improving ovulation in women with PCOS to supporting sperm motility in men, adequate vitamin D levels matter at every stage of the journey to parenthood. Discover why testing before and during pregnancy is increasingly recommended.

Vitamin D has one of the most remarkable stories in nutritional science — from its discovery as the cure for rickets in the early 20th century to its emerging role in cancer prevention, heart disease, diabetes and depression. Yet a century after its identification, our understanding of vitamin D’s wider role in human health is still evolving. This article traces that history and explains why testing your vitamin D levels remains as relevant as ever.