A Vitamin D deficiency is not an excuse to spend large amounts of time in the sun without the use of sunscreen.
Often depicted in the media, there is no doubt that Vitamin D is an essential nutrient. The fact is, most fair complected individuals can acquire sufficient Vitamin D through limited sun exposure.
As opposed to increasing sun exposure, the American Academy of Dermatology recommends that adequate amounts of Vitamin D should be obtained from a healthy diet (i.e. dairy products, fortified cereals and fish) and/or Vitamin D supplements.