Study : Low levels of vitamin D may increase the risk of cardiovascular disease . About 30 to 50 pecent of Americans do n't get enough Sun in northern U.S. may not generate enough vitamin D during winter months . More studies needed to pinpoint role of vitamin D and cardiovascular health .
Study : Low levels of vitamin D may increase the risk of cardiovascular disease . About 30 to 50 pecent of Americans do n't get enough vitamin D says study author . Sun in northern U.S. may not generate enough vitamin D during winter months . More studies needed to pinpoint role of vitamin D and cardiovascular health .