Solved UPSC CDS/OTA Question
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Q · Nutrition and Nutrients medium · 45s
Which nutrient deficiency leads to pellagra (diarrhea, dermatitis, dementia)?
TopicNutrition and Nutrients
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Niacin deficiency causes pellagra, characterized by the “3 Ds.” Dietary patterns high in corn and low in protein predispose. Fortification and varied diets including meat and legumes prevent deficiency. Tryptophan can be converted to niacin, highlighting importance of protein quality.
Final Answer: Option A - Niacin (B₃)