Final answer:
Emily's recommended daily iron intake is 15 mg if she is between 14 and 18 years old, with iron-rich foods and vitamin C enhancing absorption to prevent iron deficiency anemia.
Step-by-step explanation:
The recommended dietary iron intake for Emily depends on her age. If Emily is between the ages of 14 and 18, her daily iron requirement would be 15 mg. It is important to ensure that her diet includes iron-rich foods such as shellfish, red meats, seeds, nuts, legumes, and fortified breakfast cereals. To increase iron absorption, these should be consumed along with foods high in vitamin C. For adolescent girls and women of reproductive age, maintaining adequate iron intake is crucial due to the risk of iron deficiency anemia, especially during periods of rapid growth, pregnancy, and menstruation.