Eating this brilliant vegetable is like giving your body a beauty treatment, thanks to its high concentration of beta carotene (the healthful antioxidant that gives this spud its orange hue). Beta carotene, which has been shown to help every cell in the body stay healthy, also happens to be a skin-targeted nutrient. Studies have shown it neutralizes wrinkle and sun spot-spurring damage from the sun and helps generate new, healthy glowing skin cells. Sweet potatoes are also packed with a slew of figure-friendly fiber and energizing B-vitamins -- all for just 43 cents a serving. Bake them whole or mash them with a bit of milk.