Final answer:
Iron needs increase with the onset of menstruation in girls, and anemia is a common problem. Iron-deficiency anemia is the most common type and occurs when the amount of available iron is insufficient to allow production of sufficient heme.
Step-by-step explanation:
Iron needs increase with the onset of menstruation in girls, and anemia is a common problem.
Iron-deficiency anemia is the most common type and occurs when the amount of available iron is insufficient to allow production of sufficient heme.
This condition can occur in individuals with a deficiency of iron in the diet and is especially common in teens and children as well as in vegans and vegetarians.