Which nutrient deficiency can contribute to anemia by limiting hemoglobin production?

Which nutrient deficiency can contribute to anemia by limiting hemoglobin production?

• A. Iron
• B. Vitamin B12
• C. Folate
• D. Vitamin C

Answer: (A)

Iron is essential for hemoglobin production because the heme portion of hemoglobin contains iron. When iron is insufficient, the body can’t form enough heme, so hemoglobin synthesis is limited and oxygen transport decreases, leading to iron-deficiency anemia. Vitamin B12 and folate deficiencies affect red blood cell creation and maturation, so they cause anemia through impaired cell production rather than directly limiting hemoglobin synthesis. Vitamin C helps with iron absorption, but it doesn’t directly limit hemoglobin production itself.

Iron is essential for hemoglobin production because the heme portion of hemoglobin contains iron. When iron is insufficient, the body can’t form enough heme, so hemoglobin synthesis is limited and oxygen transport decreases, leading to iron-deficiency anemia. Vitamin B12 and folate deficiencies affect red blood cell creation and maturation, so they cause anemia through impaired cell production rather than directly limiting hemoglobin synthesis. Vitamin C helps with iron absorption, but it doesn’t directly limit hemoglobin production itself.