Multiple choice

Anemia is the disease due to the deficiency of

  1. iron

  2. oxygen

  3. sulphur

  4. none of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Anemia is primarily caused by iron deficiency, which reduces the blood's ability to carry oxygen due to insufficient hemoglobin production. Oxygen itself is not a nutrient whose deficiency causes anemia, and sulfur is not directly involved in hemoglobin synthesis. Iron deficiency anemia is the most common type worldwide, making 'iron' the correct answer.

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