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What is Pellagra is caused by deficiency of which vitamin? and explain in detail?
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