Narrowband Ultraviolet B Exposures Maintain Vitamin D Levels During Winter: A Randomized Controlled Trial.

In conclusion, a suberythemal NB-UVB dose of 2 SED every second week maintains and even increases serum VD concentrations during the winter. A high BMI seems to predispose subjects to low levels of VD.
PMID: 26524984 [PubMed - as supplied by publisher]

Source: Acta Dermato-Venereologica - November 3, 2015 Category: Dermatology Authors: Karppinen T, Ala-Houhala MJ, Ylianttila L, Kautiainen H, Viljakainen H, Reunala T, Snellman E Tags: Acta Derm Venereol Source Type: research