This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition and health, Subject name: Social & Preventive Medicine
Elemental iron supplementation in Iron deficiency anemia is - 
Select and explain. 
A. 300-400 mg, B. 150-200 mg, C. 100-150 mg, D. <100 mg
C: 100-150 mg
Answer: C: 100-150 mg 
Explanation: One tablet of iron containing 100mg of elemental iron is given daily. REF. PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICAL 21ST EDITION. PAGE NO - 594