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
Iodine RDA is 
Select and explain. 
A. 300 micrograms, B. 200 micrograms, C. 150 micrograms, D. 50 micrograms
C: 150 micrograms
Answer: C: 150 micrograms 
Explanation: Requirement of iodine The daily requirement of iodine for adults is placed at 150 micrograms. The recommendations of WHO of 250 mcg per day for iodine during pregnancy have also been adopted. This amount is normally supplied by well- balanced diet and drinking water except in regions where Food and water are deficient in iodine. Ref:Park's Textbook of Preventive and Social Medicine 25th Ed Pgno : 662