We've talked about the importance of sunshine in a previous article but we came across new, supplementing and interesting data from Dr. M. F. Holick, Ph.D., M.D. He's a Professor of Medicine, Physiology and Biophysics; a Director of the General Clinical Research Unit; and a Director of the Bone Health Care Clinic and the Director of the Heliotherapy, Light, and Skin Research Center at Boston University Medical Center. He's done extensive research on Vitamin D. He determined the mechanism for how vitamin D is synthesized in the skin, demonstrated the effects of aging, obesity, latitude, seasonal change, sunscreen use, skin pigmentation, and clothing on this vital cutaneous process. (Source: Dr. Holick's website - link below)
Here is the fantastic info from an interview with Dr. Holick about sunlight and vitamin D. Reasonable sun exposure provides health benefits not obtained via vitamin D supplementation. It reduces risk of: melanoma, all cause mortality, breast cancer, blood pressure, MS, obesity & Type II Diabetes. It increases the risk of: non-melanoma skin cancer.
Health benefits associated with sun exposure that you do not get from solely supplementing with vitamin D:
Could some of this be tied to living in a blue zone/green zone?
Is it better to shoot for optimum sun exposure, optimum vitamin D levels, or both?
Note about Sunscreen
Note about Vitamin D supplement
Dr. Holick’s recommendations for ideal levels of vitamin D
Dr. Holick’s guidelines for obtaining adequate sun exposure
What to do in the winter?
What about tanning beds?
What about people with malabsorption issues?
Learn more about Dr. Holick - click here
UCSD Video with Dr. Holick