You can make porridge, pregnant women can also eat, purple potatoes (Ipomoea batatas (L.) Poir. Convolvulaceae sweet potato genus), also known as black potatoes, potato flesh is purple to dark purple. It is rich in selenium and anthocyanins in addition to the nutrients of ordinary sweet potatoes. Purple potato is one of the main raw materials for anthocyanins.

Purple potato health effects:

1, rich in anthocyanins, prevent a variety of diseases Anthocyanin health effects, no side effects. The color of purple potatoes comes from anthocyanins, which are natural and powerful free radical scavengers. A large number of studies have confirmed that anthocyanins have preventive and therapeutic effects on more than 100 diseases, and their ability to scavenge free radicals is 20 times greater than that of vitamin C and 50 times greater than that of vitamin E. Anthocyanins can remove free radicals through the blood-brain barrier, thus protecting brain tissue, and at the same time can reduce the side effects of antibiotics on the human body.　　

2, high content of selenium and zinc, antioxidant, cancer prevention.　And zinc is also a component or activator of many antioxidant enzymes, with the role of preventing free radical damage and maintaining normal immune function. Zinc also maintains the stability of cell membranes and reduces toxin absorption and tissue damage. Zinc has a regulatory function in tissue metabolism that regulates protein synthesis and metabolism, modulates immune function, and has a regulatory effect on hormones, for example, participating in the synthesis and release of insulin and the secretory process of prostaglandins. Zinc is also an essential factor in DNA synthesis and is involved in the division and proliferation of all cells, promoting growth and development and tissue regeneration.

3, high cellulose content, promote digestion of purple potatoes high cellulose content, these substances can increase the volume of feces, promote gastrointestinal peristalsis, clean up the intestinal lumen of the retained mucus, stagnant gas and corruption, the discharge of fecal matter in the toxic substances and carcinogens, to maintain smooth stools, to improve the environment of the digestive tract, to prevent gastrointestinal diseases.　　

4, rich in vitamins, bodybuilding, fitness purple potatoes stem tip young leaves are rich in vitamins, proteins, trace elements, edible fibers and soluble non-oxidizing substances, often eaten with weight loss, bodybuilding and fitness and cancer prevention role.　　

5, rich in potassium and iron, for the body to send oxygen, smooth blood pressure.　　

Rich in trace elements is still relatively high, the body is also good