There is only an one-word difference between this kind of underground fruit and sweet potato, and the seeds are highly poisonous, but farmers plant them in large quantities.

China has a vast territory and rich land resources, so there are various kinds of food. Thousands of years of food culture makes people care about "eating" very much. it can be said that as long as it is edible, it can enter people's dining table. Even some highly poisonous food, as long as the toxin can be removed, people will flock to it. There is a good example, that is puffer fish. Although it contains highly toxic, but the meat is delicious, people in the long-term practice to explore a set of effective methods to remove its toxins, the rest is to enjoy good food. However, not all highly toxic foods can be eaten. Although some highly toxic substances seem to be edible, their toxins cannot be removed.

In the southern countryside of our country, there is a delicious underground fruit, which is only one word different from the sweet potato, but its seeds are highly poisonous. This kind of fruit is called "sweet potato". I believe many people have eaten it. There are large-scale planting bases in Sichuan, Guizhou, Hunan, Guangxi and other places in China, its taste is more crisp than sweet potato, the meat is white and juicy, and contains high starch, protein, vitamins and various minerals. It can not only be eaten as fruit, but also as a vegetable. In Hunan, where the author lives, farmers here are more accustomed to eating it as a fruit, tearing off the skin and eating it directly.

Although sweet potatoes are delicious, their aboveground parts are highly poisonous. Among them, its stems, leaves, and seeds, especially seeds, contain a highly toxic substance called rotenone, which was once one of the raw materials for making pesticides and insecticides. the toxicological effect is to prevent cells from using oxygen, resulting in anoxic damage to organs, resulting in poisoning. And it is so toxic that eating about 5 tablets may lead to irreparable consequences. Because it is very similar to ordinary beans, you must pay attention to it when eating, and don't eat it by mistake.

Of course, farmers who grow sweet potatoes all the year round are well aware of its toxicity, and they will pay attention to avoid feeding cattle and sheep in order to avoid accidental consumption of livestock. The seed of sweet potato is not useless. It is called "sweet potato seed" in traditional Chinese medicine. It can be used externally to treat head moss and scabies. In the "Guizhou Folk prescription Collection" recorded how to use it to treat scabies: "sweet potato seeds, yellow leaves each appropriate amount, water fried external washing." However, it should be noted that sweet potato seeds are highly toxic, so please consult your doctor first if you need to use them.

The yield of sweet potato is very high, especially in sandy soil, the yield can reach more than 7000 jin per mu, and many farmers make a living by planting it. Friends, have you ever eaten sweet potatoes?