Originally from Central America and the West Indies, but made their way to Polynesia and New Zealand to become a staple diet in the Pacific and some parts of Asia, purple sweet potato is just one of the varieties of Sweet potato that today are the world's seventh largest food crop. It is an herbaceous perennial vine with edible leaves however the long and tapered root is most popular.
Purple sweet potatoes have a much lower on the glycemic index scale than white potatoes therefore even carbohydrate-sensitive people and diabetics can include these good carbohydrates in their diets. As with other purple coloured foods they are said to be rich in antioxidants with 150% more than blueberries.
Purple sweet potatoes natural sweetness makes them perfect for baked, boiled, fried (like French fries), or roasted, They are wonderfully versatile and have a naturally creamy flavor and texture and hold their shape well for salads. Purple sweet potatoes maintain their lovely lavender colour even after cooking.