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Grab the bulk grains
Foods like brown rice, quinoa, and popcorn kernels are whole foods that are often available in the bulk section of your favorite grocery store. “Single-ingredient whole grains are high in B vitamins, fiber, and other heart-healthy nutrients,” says Murthy. “Since they only have one ingredient and they are minimally processed, they are cheaper than foods like sugary, flavored oatmeal packets, or instant microwaveable popcorn.”