Sweet potatoes might be something more than a superfood because of their high fibre content and nutritional values. Dieticians even recommend them in weight loss diet. They help in lowering blood sugar levels because of their low glycemic index. The high fibre content helps in preventing constipation. It is very good for eyes, prevents stress, controls blood pressure, anti-ageing, anti-cancer, heart healthy and full of energy. The most common way of consuming them is in the roasted form. However, individuals with kidney problems, diabetes and obesity should eat it after consulting a physician.