Sweet potato contains a lot of sugar, protein, fat, vitamins and minerals, as well as carotene and vitamin C. Japanese researchers recently found that sweet potato contains anticancer substances that inhibit the growth of cancer cells. In their experiments, they found that the inhibitory effect of four times concentrated sweet potato juice on the proliferation of cancer cells was about one-fifth stronger than that of ordinary sweet potato juice. They also found that the residue of sweet potato starch contains substances that inhibit the proliferation of cancer cells. The sweet potato we eat every day also contains this cancer-inhibiting substance.
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In addition, sweet potato has many medicinal values. Sweet potato contains vitamins C and E with special properties, that is, only vitamins C and E contained in sweet potato will have special properties and will not be destroyed at high temperature. Among them, vitamin C can obviously enhance the body's resistance to several viruses such as colds, while vitamin E can promote sexual desire and delay aging.
Sweet potato is rich in potassium, which can effectively prevent cardiovascular diseases such as hypertension and stroke. The milky white serosity contained in sweet potato can relieve constipation, promote blood circulation and inhibit muscle spasm. Fresh sweet potatoes can be mashed, squeezed and smeared, and used to treat eczema, centipede bites, herpes zoster and other diseases.
If you eat baked sweet potatoes sold outside, it will do more harm than good! ! !
Three Harms to Health from Eating Roasted Sweet Potato
1. Toxins from coal baking:
The doctor said that the street roasted sweet potatoes was roasted with coal, and the roasting process was not only polluted by the toxic substances of coal burning, but also put on the stove after roasting, without dust-proof sanitary facilities, and was once again polluted by many factors. When coal is burned, it will produce a lot of sulfur dioxide and carbon dioxide, as well as a variety of harmful substances, some of which also contain radioactive substances, arsenic and other toxic and harmful substances. People eating these baked sweet potatoes will lead to chronic arsenic poisoning, which will damage the digestive system and respiratory system in severe cases.
2. Put the chemical barrel into the sweet potato furnace:
Because most of these barrels of baked sweet potatoes are filled with chemical raw materials, some of these scrap iron barrels are gasoline barrels, diesel barrels, some are chemical raw materials barrels, and there are still chemical raw materials left in the barrels. Many chemical raw materials contain ingredients that may be harmful to human health. After the sweet potato is baked at high temperature, harmful gases are adsorbed on the sweet potato. If these chemical products contain benzene, it will cause harm to people's respiratory tract and nervous system, and they will feel headache and dizziness after eating. Even if cooking oil has been used before, the sanitary conditions of these barrels cannot be guaranteed because they have not been thoroughly disinfected.
People who like to eat baked sweet potatoes can go to supermarkets or food markets to buy fresh and clean raw sweet potatoes with smooth skin and bake them in the microwave oven. Half a catty of sweet potato/kloc-will be cooked in 0/5 minutes. This baked sweet potato is completely "safe sweet potato".
3. Black-spotted sweet potato is poisoned:
In particular, it is necessary to remind fans of baked sweet potatoes that vendors usually bake sweet potatoes contaminated by black spot bacteria with good sweet potatoes. On the baked sweet potato, the original obvious black spots are hard to see. According to experts, brown and dark brown spotted sweet potato skin is infected by "black spot pathogen", and the toxin discharged by black spot pathogen contains sweet potato ketone and sweet potato ketone alcohol, which will make raw sweet potato hard and bitter, and cannot be killed by boiling, steaming or roasting, which is harmful to the liver after entering the human body. Patients with acute poisoning caused by eating black-spotted sweet potato will have symptoms such as vomiting and diarrhea, and in severe cases, they will have high fever, asthma, convulsions, vomiting blood, coma and even death. If poisoning is found, vomiting and diarrhea should be induced immediately and sent to hospital for treatment.
People who like to eat baked sweet potatoes can go to supermarkets or food markets to buy fresh and clean raw sweet potatoes with smooth skin and bake them in the microwave oven. The sweet potato baked in this way is a "safe sweet potato".
If possible, you can bake it yourself in the oven at home. It is healthier to steam.