Question

Which disease is caused due to the prolonged deficiency of nicotinic acid?

• A. Pellagra
• B. Rickets
• C. Scurvy
• D. Beri-Beri

Answer 1

The correct option is A Pellagra

Vitamin Niacin (also known as vitamin B${}_3$ or nicotinic acid) is a water soluble vitamin essential for normal cellular metabolism as it is precursor of coenzymes nicotinamide adenine dinucleotide (NAD) and nicotinamide adenine dinucleotide phosphate (NADP). The deficiency of Niacin (nicotinic acid) causes Pellagra and canine(dog) disease (black tongue). Pellagra is characterised with scaly, pigmented skin, irritation of the GI tract (diarrhoea).