Ingesting more iron-rich foods, such as lean meats, nuts, beans, lentils, dark green vegetables, and breakfast cereals with iron added. Other iron-rich meals include dark chocolate and nuts. Absorbing iron from a wide range of sources, including heme iron and non-heme iron. It is strongly recommended that the number of vitamin C-rich foods ingested throughout the day be increased. Some vitamin C-rich foods are citrus fruits, peppers, tomatoes, and broccoli.