Photoprotective behaviour and sunscreen use: impact on vitamin D levels in cutaneous lupus erythematosus

Abstract

We suggest that patients with cutaneous lupus erythematous have suboptimal 25(OH)D levels, which are significantly raised by the addition of at least 400 IU/day of cholecalciferol. We recommend supplementation with an active vitamin D analogue in collaboration with a consultant nephrologist, for the subgroup of patients with renal disease.