Key Points

• Vitamin D has known anticancer effects, and much research has been published over the last several decades showing a link between vitamin D levels and cancer risk; depending on the type of cancer, vitamin D alone can potentially reduce the risk of cancer by about 25% to 80%
• A study found that the highest survival rate for individuals diagnosed with lymphoma was achieved by the group with the highest vitamin D level, over 33 ng/ml (81 nmol/L); approximately 22% more survived among the group with the highest vitamin D levels compared to those with the lowest