Sunscreen Use May Cause Vitamin D Deficiency

Sunscreen is key to protecting our skin from the damaging effects of the sun, but a new study suggests that using sunscreen could lead to vitamin D deficiency. In this study, researchers found that using sunscreen with an SPF of 15 or higher could reduce the body’s vitamin D-3 production by 99%. Based on the findings, the researchers suggest that individuals should avoid sunscreen use when exposed to midday sun for up to 30 minutes twice weekly in order to increase and maintain normal vitamin D levels. Co-author Dr. Kim Pfotenhauer adds, “People are spending less time outside and, when they do go out, they’re typically wearing sunscreen, which essentially nullifies the body’s ability to produce vitamin D. While we want people to protect themselves against skin cancer, there are healthy, moderate levels of unprotected sun exposure that can be very helpful in boosting vitamin D.” Journal of the American Osteopathic Association, May 2017