Journal
PHOTODERMATOLOGY PHOTOIMMUNOLOGY & PHOTOMEDICINE
Volume 28, Issue 3, Pages 159-161Publisher
WILEY-BLACKWELL
DOI: 10.1111/j.1600-0781.2012.00649.x
Keywords
age; diet; smoking; sun exposure; vitamin D
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The main source of vitamin D is synthesis in the skin during exposure to ultraviolet radiation. The existence of photoaggravated diseases and the increasing incidence of skin cancer have prompted recommendations to avoid the sun. Here, we study the status of vitamin D in a healthy population and its relation to their habits of sun exposure. To do so, we designed a cross-sectional study that included 177 healthy people. We analyzed parameters about demographic data, sun exposure, and protection habits and estimated vitamin D dietary intake. We performed blood tests to measure serum 25-hydroxyvitamin D [25(OH)D], calcium, phosphorus, and intact parathyroid hormone. Mean levels (+/- standard deviation) of 25(OH)D were 24.0 (+/- 8.5) ng/ml. Seventy-six percent of the population did not reach recommended levels of vitamin D (30?ng/ml), including 4.5% who were vitamin D deficient (
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