To Build Your Iron Stores: 

lentils:  Low-calorie lentils pack about 30 percent of your daily iron per cup cooked. About 12 percent of young women have low iron stores - at the extreme, that leads to anemia. But one study found that even women who were iron deficient (not anemic) had poorer performances on skill tests than those with normal levels.  I love throwing some lentils in my salads!