Nutrition and bullous skin diseases.

Autoimmune and nonautoimmune bullous diseases can both be associated with significant morbidity and mortality. Although our understanding of the pathogenic mechanisms of these diseases has increased tremendously, there is still much to learn about the various factors affecting their onset, course, and therapy. In recent years, increasing information has been published about the effect of vitamins, minerals, and other nutrients on bullous skin diseases. Some factors are believed to be inducers (thiol and phenol-containing foods in pemphigus), whereas others are believed to be protective (antioxidants in cutaneous porphyrias). This contribution reviews the evidence in the literature of the role of various dietary factors in bullous diseases, including the nonautoimmune and the deficiency dermatoses. Additional studies and new investigations are needed to provide a better understanding of the specific associations of dietary factors with bullous diseases and better management for patients affected by these conditions.