Research on Vitamin D has been prominently featured in National Institutes of Health/Office of Dietary Supplements research reports in the last few years. Here’s a capsule summary from NYBC’s newsletter THE SUPPLEMENT:
Vitamin D3 has been in the news a lot—recent data show it could help prevent up to half of the cases of breast cancer and two-thirds of the cases of colorectal cancer. D3 is also known to play a powerful role in immune function, working in complex ways to increase the body’s immune response against infectious microorganisms, while also having the capacity to suppress autoimmune diseases such as inflammatory bowel disease and multiple sclerosis. In people with HIV, D3 may play a part in maintaining CD4 counts. Lastly, a scientific paper published in 2006 suggested that supplementing with D3 in the winter months could ward off respiratory infections such as the flu! In short, there’s a lot more to this vitamin than the well-known connection with bone health.
Note: NYBC stocks D3, a naturally occurring form that is more bioavailable than older forms of the supplement.
Additional note: the authors of an article in the June, 2007 issue of the American Journal of Clinical Nutrition found that supplementing with calcium + Vitamin D3 “substantially reduced all-cancer risk for post-menopausal women.”
Citation: Lappe JM, Travers-Gustafson D, Davies KM, Recker RR, and Heaney RP, “Vitamin D and calcium supplementation reduces cancer risk: results of a randomized trial.”