The same weight of purple potatoes compared to sweet potatoes, purple potatoes lower energy, eat the same amount of both, purple potatoes are less likely to grow fat, carbohydrate purple potatoes than sweet potatoes lower, protein than sweet potatoes to be higher than some of the sweet potatoes, sweet potatoes, there are individual vitamins, minerals higher than the content of purple potatoes.

Purple potato in the color component is anthocyanin super antioxidant capacity, and red sweet potato in the carotenoids, also antioxidant vitamins, at the same time in the body can be converted into vitamin A on the eyes good.

For the diabetic population, balanced nutrition, while paying attention to the control of food and intake caused by large fluctuations in blood glucose, so that postprandial blood glucose is the king, regardless of sweet potatoes, purple potatoes, potatoes should be eaten as part of the main food, do not staple food as usual, and then a pulling a piece of groundnuts or a piece of fried shredded potatoes, the equivalent of all the staples, that postprandial blood glucose fluctuations, of course, is big.