Vitamin D is critical to healthy bones. The American Academy of Dermatology recommends that an adequate amount of vitamin D should be obtained from a healthy diet that includes foods naturally rich in vitamin D, foods/beverages fortified with vitamin D, and/or vitamin D supplements. It should NOT be obtained from unprotected UV exposure to sun or indoor tanning devices, which are known risk factors for the development of skin cancer. Use of sunbeds also has been associated with increased risk of melanoma and squamous cell carcinoma. There is no known safe level of unprotected sun exposure.