Solved UPSC CDS/OTA Question
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Q · Nutrition and Nutrients medium · 45s
Which nutrient helps in iron absorption and collagen cross-linking?
TopicNutrition and Nutrients
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Vitamin C enhances nonheme iron absorption by reducing Fe³⁺ to Fe²⁺ and is a cofactor for lysyl hydroxylase and prolyl hydroxylase in collagen cross-linking, critical for connective tissue strength.
Final Answer: Option A - Vitamin C