Sweet potatoes: Carotenoids, vitamin C, potassium and fiber are just a few of the benefits of eating this savory-sweet veggie, which is ranked among the highest vegetables on the nutrition scale. Sweet potatoes can help stabilize blood sugar, making them a great choice for diabetics, and are relatively low in calories. Try them baked in the oven or diced into breakfast potatoes with a hint of maple syrup, onions & peppers!