Do you get tired from running up stairs? Have trouble catching your breath in sports? Feel listless in class? Iron could be to blame: Around one in ten teen girls is deficient in the mineral, which can lead to these and other debilitating symptoms. Getting enough iron is of extra concern for teens who don’t eat meat, since animal foods like beef, liver, and turkey are some of the most concentrated sources of the nutrient. So how can you get enough iron on a plant-powered diet?