<prompt> Demand of fetus for iron is evident after___ weeks10202530  <response>: Ans. c 25 weeks Ref. Nelson Textbook of Pediatrics 17thpg. 545IRON REQUIREMENT IN PREGNANCY Mineral supplementation is not needed in healthy women.- The exception is iron. The iron requirements of pregnancy are total about 1 gram. Demand of fetus for iron is evident in last 12 weeks of pregnancy. 