Prolonged deficiency of nicotinic acid in human diet may lead to
A
Beri-beri
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B
Pellagra
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C
Scurvy
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D
Rickets
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Solution
The correct option is B Pellagra Pellagra disease resulting from deficiency of nicotinic acid characterized by scaly dermatitis, inflammation of mucus membrane, diarrhoea and mental disturbance.