It's August and the sun is shining. But two new studies show that kids are not getting nearly enough sun. The studies show that millions of children have disturbingly low levels of vitamin D, the vitamin that comes from the sun. The lack of vitamin D can potentially increase the risk for bone problems, heart disease, and diabetes. The studies come out as the National Academy of Sciences prepares to review the federal government's official guidelines for the recommended daily intake of Vitamin D. For all about you need to know about kids, sunshine, and Vitamin D The Takeaway talks to Dr. Michal Melamed from the Albert Einstein College of Medicine in New York, who conducted one of the studies.