Vitamin D3 prevents all types of cancer
Mostly falseThe Claim
Some people believe that taking Vitamin D3 supplements can prevent all forms of cancer due to its role in regulating cell growth and immune function.
Origin
This myth likely stems from early observational studies and media reports highlighting a correlation between higher Vitamin D levels and lower cancer incidence.
What Science Says
While some studies, including meta-analyses, suggest that higher Vitamin D levels might be associated with a lower risk of certain cancers, such as colorectal cancer, evidence is inconsistent across cancer types. Randomized controlled trials (RCTs) have not consistently shown that Vitamin D3 supplementation significantly reduces cancer risk overall. For example, the VITAL trial found no significant reduction in invasive cancer incidence with Vitamin D supplementation.
Verdict
Mostly False