Much reports have been done about cancer of the skin and vitamin D. According to the National Council on Skin Cancer, although sun exposure is related conditions including cause of skin cancer, our bodies still need vitamin D for healthy skin. The whole anti aging skin care system and skin cancer prevention topic is a difficult one. As vitamin D nutrients are derived out of your sun, the bottom line is to obtain the sun exposure wisely. Wear a (safe) sunscreen with at least an SPF of 30 and a wide-brimmed hat when working and playing outdoors.