Nutritional deficiency and the skin.
Cutaneous changes occur in deficiency states of many nutritional elements: ascorbic acid, retinol, protein-energy, cyanocobalamin, phytonadione (vitamin K), biotin, ribroflavin, pyridoxine, niacin, essential fatty acids, and zinc. There are also inherited disorders of copper, biotin, zinc, and tryptophan metabolism. Cutaneous vitamin D synthesis is inhibited by sunscreen use. The striking skin changes of the glucagonoma syndrome may be related to nutritional pathways.
Miller
S J
SJ
Division of Dermatology, University of California, San Diego School of Medicine.
D003677:Deficiency Diseases / Q000150:complications*; D006801:Humans; D012871:Skin Diseases / Q000209:etiology*