Pellagra is caused by deficiency of which vitamin?: (A) B2, (B) B3, (C) B1, (D) Folic acid
Answer is B. Niacin (Vit B3) or nicotinic acid is also known as pellagra preventive (P.P.) factor of Goldberg Pellagra Photosensitive Dermatitis: Symmetric dermatitis in the sun-exposed areas Casal's Necklace The rash form a ring around the neck 4 Ds of Pellagra Dermatitis (Photosensitive Dermatitis) Dementia Diarrhoea Death ref DM Vasudevan 8th ed page 470