Numerous studies have documented the health benefits of vitamin D
The study reviewed assessed the association of vitamin D and the risk of colorectal cancer (Ma Y, et al. 2011). Approximately 1,000,000 participants from several countries were included in the analysis which included both vitamin D intake and blood levels of 25-hydroxyvitamin D. 25-hydroxyvitamin D is the most common way to test for vitamin D deficiency.
It was concluded that vitamin D intake and blood 25-hydroxyvitamin D levels were inversely associated with the risk of colorectal cancer.
Both taking vitamin D and getting some sun can provide health benefits. By clicking here you can read about additional benefits of vitamin D.