There are many different varieties of beans—black, white, pinto, heirloom, etc.—but one thing they all have in common is their high amounts of protein. Two cups of kidney beans, for example, contain about 26 grams (more than 3 cups of cow's milk, which contains 24 grams). And you don't have to make beans from scratch to reap their nutritional benefits, says Christine Gerbstadt, MD, RD, author of Doctor's Detox Diet. "If you want to buy them dried and soak them overnight before you cook them, that's fine," she says. "But it's also perfectly okay—and much easier—to buy them canned, rinse them, and heat them up over the stove."

Try this recipe: Farfalle With Zucchini and White Beans

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