Dermatitis and alopecia may occur due to deficiency of: (A) Magnesium, (B) Zinc, (C) Calcium, (D) Molybdenum
Answer is B. zinc is a trace element necessary for maintaining healthy skin , healing of wounds, growth,fetaal development and brain functions zinc deficiency acrodermatitis enteropathica- dermatitis around orifices, nonscarring alopecia, glossitis, diarrhoea.growth retardation. Ref Harrison20th edition pg 1345