41. Two adults also show signs of possible iron deficiency . 42. Unusual food cravings, sometimes called pica, are usually a tipoff to anemia caused by iron deficiency . 43. Adolescent girls are especially prone to iron deficiency because of their monthly blood loss from menstruation. 44. At one point I had an iron deficiency . 45. The results of calcium, magnesium, and iron deficiency are well-known; those of zinc are less so. 46. They attach themselves in the intestine and suck blood causing chronic blood loss and iron deficiency . 47. The items consumed in pica typically have no logical connection to the iron deficiency , Adler said. 48. For example, a marginal iron deficiency results in reduced oxygen supply to tissues and the brain. 49. For the first month and a half of the season, Bourque suffered from an iron deficiency . 50. They attach themselves in the intestine and suck blood, causing chronic blood loss and iron deficiency .