Sweet potato contains an oxidase, which easily produces a large amount of carbon dioxide gas in human gastrointestinal tract. If sweet potato is eaten too much, it will make people bloat, burp and fart. Secondly, sweet potato has a high sugar content. Eating too much can produce a lot of stomach acid, which makes people feel "heartburn". The stomach is stimulated by acid, and the contraction is strengthened. At this time, the cardiac muscles at the junction of the stomach and the esophagus are relaxed, and the acid in the stomach flows back to the feeding tube, and people spit sour water. At the same time, too much sugar can't be absorbed by the body for a while, and the rest will ferment in the intestines, which will also make the stomach uncomfortable. Chinese medicine believes that people with dampness blocking the spleen and stomach and stagnation of qi should eat sweet potatoes carefully.

Edible taboo of sweet potato

1, should not be eaten with persimmon at the same time. The main component of sweet potato is starch, which will produce a lot of fruit acid after eating. If it is eaten with persimmon at the same time, the fruit acid can coagulate with tannin and pectin of persimmon to form stomach stones. If you eat a lot, it should be at least five hours apart. If you feel upset in the stomach, you must go to the hospital for gastroscopy to see if there is gastric bleeding or gastric ulcer.

2. It is not advisable to eat sweet potatoes with dark spots. Sweet potato black spot virus with black spots is not easy to be destroyed and killed by high temperature, and it is easy to cause poisoning, and a series of poisoning symptoms such as fever, nausea, vomiting and diarrhea may even lead to death.

3, sweet potatoes must be steamed and cooked before eating. Because the starch granules in sweet potato are not destroyed by high temperature, it is difficult to digest. Sweet potato contains an oxidase, which easily produces a large amount of carbon dioxide gas in human gastrointestinal tract. If sweet potato is eaten too much, it will make people bloat, hiccup and fart.

4, sweet potato skin is not edible. Because of the high alkali content of sweet potato skin, eating too much will lead to gastrointestinal discomfort. Sweet potato skin with brown or black spots cannot be eaten. Because sweet potato is infected by black spot disease, it will cause poisoning after eating.