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Sweet potatoes

Why they're super: Need a beta-carotene fix? Just one medium sweet potato packs over four times the recommended daily amount. These tasty tubers are also rich in potassium, inflammation-fighting vitamin C, and vitamin B6, which may prevent clogged arteries.

How to enjoy them: Boiling sweet potatoes may cause some of the water-soluble vitamins to leach out, so try them baked, roasted, or cubed, and added to soups or stews. If you need a boost of fiber, make sure to leave the skins on.

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