Studies show that being even mildly iron-deficient affects learning, memory and attention. (About 10 percent of young women are anemic—because of their monthly loss of iron-rich blood.) Luckily, restoring iron levels to normal also restores cognitive function. And beans are a good vegetarian source of iron. Try this Zesty Bean Dip: Combine 1/4 cup fat-free canned refried beans, 1 tablespoon salsa, 1 1/2 teaspoons chopped fresh cilantro and 1 minced scallion (optional) in a bowl. Serve with 1 ounce (about 10) tortilla chips. If beans aren’t of interest, here are some other iron-rich food ideas: dark leafy greens, meat, poultry, fish or soy (tofu, edamame/soybeans).