1, purple potatoes are rich in protein, starch, dietary fiber, pectin, amino acids, vitamins and a variety of trace elements, and purple potatoes and sweet potatoes, compared to purple potatoes, purple potatoes are also rich in anthocyanins and trace elements selenium and iron. Because the purple potato is rich in anthocyanins, is one of the main raw materials of anthocyanins, but also in the Japanese National Vegetable Cancer Research Center announced in the anti-cancer vegetables ranked first.

2, antioxidant: purple potatoes are rich in anthocyanins, and anthocyanins have a very good antioxidant effect, so eating purple potatoes can be anti-aging, remove free radicals in the body, beneficial to health.

3, weight loss: purple potatoes calories than the general calories of staple foods, like rice or something, so the purple potatoes can fill the stomach, and low calorie, low fat content, and purple potatoes are rich in dietary fiber, dietary fiber can promote gastrointestinal peristalsis, to promote intestinal emptying, so the purple potatoes is a very good weight loss food.

4, enhance immunity: purple potatoes are rich in protein and amino acids, purple potatoes in the protein and amino acids are very easy to be digested and absorbed by the human body, most of which is mucin, and mucin can prevent the connective tissue of the kidneys and liver atrophy, which can improve the body's immunity, and the purple potatoes contain a wealth of trace elements, trace elements help to maintain and regulate the human body's circulation and secretion function, so consuming purple potatoes is a good food. Circulation and secretion function, so eating purple potatoes can enhance the body's immunity.

5, promote gastrointestinal peristalsis: purple potatoes are rich in dietary fiber, dietary fiber helps gastrointestinal peristalsis, and helps the intestinal tract in the corruption and the accumulation of waste gas discharge, discharge of human waste, toxins, prevention of constipation, and improves the environment of the human digestive tract, thus preventing gastrointestinal diseases.

6, anti-fatigue: purple potatoes are rich in trace elements selenium and elemental iron, selenium is easily absorbed by the human body, retained in the body's serum, can help the human body to repair the myocardium, remove free radicals in the body, enhance immunity, anti-fatigue. Iron can help the synthesis of human hemoglobin, the necessary elements of blood supplementation, for people with iron deficiency anemia need to supplement iron.