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  4. Pellagra is caused by deficiency of

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Q. Pellagra is caused by deficiency of

Delhi UMET/DPMTDelhi UMET/DPMT 2009

Solution:

Niacin or nicotinamide (nicotinic acid) is also called antipellagra vitamin. Its deficiency causes pellagra in which skin becomes scaly and pigmented. Deficiency of pyridoxine (Vit- $ B_{6} $ ) causes anaemia, neuritic pain, convulsions, skin lesions, etc. Deficiency o folic acid causes megaloblastic or macrocytic naemia while deficiency of biotic (vitaminB4 or itamin-H) causes dermatitis and anorexia.