Can be eaten, although the sprouted groundnut can be eaten, but if the skin is brown or black spots can not be eaten, that is because of contamination by black spot bacteria. Black spot bacteria discharged toxins, containing cassava ketone and cassava ketone alcohol, so that cassava hard and bitter, on the human liver is highly toxic. Although this toxin is boiled and roasted, its biological activity will not be destroyed. After consumption, more than twenty-four hours onset, nausea, vomiting, diarrhea and other gastrointestinal symptoms. Serious, but also a high fever, headache, asthma, confusion, pumping, vomiting blood, coma. Even death.

Expanded:

1, anti-cancer: often eat sweet potatoes help to maintain the body's normal level of folic acid, the body's folic acid content is too low will increase the risk of cancer. Sweet potato high content of dietary fiber to promote gastrointestinal motility, prevention of constipation and colorectal cancer role.

2, heart: sweet potato rich in potassium, beta-carotene, folic acid, vitamin C and vitamin B6, these five components are helpful in the prevention of cardiovascular disease. Japanese scholars also found that sweet potato contains collagen, mucopolysaccharides, can reduce the total cholesterol content in the blood, to prevent atherosclerosis, coronary heart disease.

People's Daily Online - Can you still eat sweet potatoes when they sprout? Nutritional value of sweet potatoes