Over 900 studies show anti-cancer activity of vitamin D across most cancer types, and randomized controlled trials demonstrate a ~13% reduction in cancer mortality.
Cancers with demonstrated benefit include:
• Breast
• Prostate
• Colorectal
• Lung
• Brain (glioblastoma)
• Melanoma
• Ovarian
• Bladder
• Head & neck
• Multiple myeloma
Effects are mediated through vitamin D receptor (VDR) signaling, immune modulation, and tumor microenvironment control.
If adults aged 50+ received routine vitamin D supplementation at modest daily doses:
➡️ ~30,000 lives saved per year (Germany alone)
➡️ ~322,000 life-years gained annually
➡️ ~$280 million in net healthcare savings per year
➡️ Cost: ~$11–$55 per person annually
Some of the most powerful cancer-prevention tools are neither novel nor profitable.
