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Tidsskr Nor Laegeforen. 2010 Sep 23;130(18):1818-21. doi: 10.4045/tidsskr.09.0435.

[Solaria, vitamin D, and skin cancer].

[Article in Norwegian]

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Avdeling for biostatistikk, Institutt for medisinske basalfag, Universitetet i Oslo, Postboks 1122 Blindern, 0317 Oslo, Norway.



Some researchers have suggested to use an indoor tanning device (solarium) as a vitamin D source for disease prevention.


The article is based on non-systematic searches in PubMed and ISI, and the authors' experience from epidemiologic research and studies of solarium irradiance.


Vitamin D deficiency is an established risk factor for rickets in children and osteomalacia in adults; and is associated with an increased risk of osteoporosis and fractures. Several studies have found a beneficial role of vitamin D on both incidence and prognosis for other diseases, e.g. cancer, but causal relationships with vitamin D cannot yet be concluded. Sun exposure, our main source of vitamin D, is also an established risk factor of skin cancer. Moderate sun exposure generally provides an adequate amount of vitamin D during summer. Dietary intake of vitamin D is adamant when sun exposure is low. Solarium use seems to increase. Mean irradiance from solariums is higher than that from the summer sun in Oslo; 1.5 times higher for UVB and 3.5 times for UVA . Use of solarium increases the risk of skin cancer and was classified as carcinogenic to humans in 2009; positive health effects are not sufficiently documented.


Recommendations on restricted solarium use should be maintained.

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