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Top 10 Healthy and Cheap Foods

Sweet Potatoes

Most of us only eat sweet potatoes at Thanksgiving. However, they're a great addition to your diet year-round. Sweet potatoes cost no more than a buck or two and are full of nutritious goodies. A typical sweet potato contains calcium, fiber, potassium, vitamin A and vitamin C. And make sure you eat the skin, too -- it's loaded with antioxidants.

Sweet potatoes are low in calories as well, with about 95 per spud. You can bake your sweet potato and enjoy it with a little brown sugar or sage. Or, slice it up, toss with a bit of olive oil and salt, and roast into yummy sweet potato fries.