Diet in dermatology

Part II. Melanoma, chronic urticaria, and psoriasis
      The roles of dietary factors in aggravating, preventing, or treating skin diseases are common questions encountered in dermatology practice. Part II of this two-part series reviews dietary modifications that can potentially be utilized in the management of melanoma, chronic urticaria, and psoriasis patients. Specifically, we examine the effect of alcohol consumption and supplementation with vitamins D and E, polyunsaturated fatty acids, selenium, green tea, resveratrol, and lycopene on melanoma risk. The relationships between chronic urticaria symptoms and dietary pseudoallergens, gluten, and vitamin D are analyzed. We explore weight loss, reduced alcohol consumption, and gluten avoidance as means of reducing psoriasis-associated morbidity, as well as the possible utility of supplementation with polyunsaturated fatty acids, folic acid, vitamin D, and antioxidants. With proper knowledge of the role of diet in these cutaneous disease processes, dermatologists can better answer patient inquiries and consider implementation of dietary modifications as adjuncts to other treatments and preventative measures.

      Key words

      Abbreviations used:

      DLQI (Dermatology Life Quality Index), EGCG (epigallocatechin-3-gallate), IgE (immunoglobulin E), PASI (Psoriasis Area and Severity Index), PUFA (polyunsaturated omega-3 fatty acid), RCT (randomized, controlled trial), UV (ultraviolet)
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      Linked Article

      • Correction
        Journal of the American Academy of DermatologyVol. 73Issue 2
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          Murzaku EC, Bronsnick T, Rao BK. Diet in dermatology. Part II. Melanoma, chronic urticaria, and psoriasis. J Am Acad Dermatol. 2014;71:1053-1068.
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      • Evidence on pseudoallergen-free diet for chronic urticaria
        Journal of the American Academy of DermatologyVol. 72Issue 6
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          To the Editor: We read with great interest the Continuing Medical Education article by Murzaku and colleagues1 on dietary therapies for various skin conditions including chronic urticaria. The authors concluded that a pseudoallergen-free diet might be recommended for a subset of patients with chronic urticaria based on 3 “double-blind, placebo-controlled trials” and level IB evidence suggesting its efficacy.2-4 Upon review of the cited primary literature, we are concerned about the quality of evidence behind this recommendation.
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      • CME examination
        Journal of the American Academy of DermatologyVol. 71Issue 6