Abstract
Nutritional supplementation may provide a viable treatment alternative in patients with psoriasis. Randomized, controlled trials have shown the effectiveness of topical vitamin A and D derivatives, intravenous ω-3 fatty acids, oral inositol, and various combined therapies. Dual therapies of ultraviolet B phototherapy and fish oil, retinoids and thiazolidinediones, and cyclosporine and a low-calorie diet were effective in the treatment of psoriasis in randomized, controlled trials. This contribution also reviews the potential negative effect of alcohol and the potential positive effects of vitamin B 12, selenium, retinoic acid metabolism-blocking agents, and a gluten-free diet in the treatment of psoriasis.
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