The sprouted sweet potato can be eaten, but if the skin is brown or black spots, it can't be eaten, because it is polluted by black spot bacteria. The toxin released by Alternaria alternata contains sweet potato ketone and sweet potato ketone alcohol, which makes sweet potato hard and bitter, and is highly toxic to human liver. Although this toxin is boiled and roasted, its biological activity will not be destroyed.

After eating, it usually occurs within 24 hours, with gastrointestinal symptoms such as nausea, vomiting and diarrhea. Severe cases include high fever, headache, asthma, blurred vision, pumping, hematemesis and coma. Even death.

Extended data

Nutritional value of sweet potato

1, anticancer

Eating sweet potatoes often helps to maintain the normal folic acid level of the human body, and low folic acid content in the body will increase the risk of cancer. The high content of dietary fiber in sweet potato can promote gastrointestinal peristalsis and prevent constipation and colorectal cancer.

2. Protect your heart

Sweet potato is rich in potassium, beta-carotene, folic acid, vitamin C and vitamin B6, all of which help to prevent cardiovascular diseases. Japanese scholars also found that sweet potato contains collagen and mucopolysaccharide, which can reduce the content of total cholesterol in blood and prevent arteriosclerosis and coronary heart disease.

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