Sweet potato is rich in potassium, beta-carotene, folic acid, vitamin C and vitamin B6, all of which help to prevent cardiovascular diseases. Potassium contributes to the balance of liquid and electrolyte in human cells and maintains normal blood pressure and heart function. β -carotene and vitamin C have the effects of anti-lipid oxidation and prevention of atherosclerosis.

2. Sweet potato can be used to prevent emphysema.

Smoking too much may lead to the symptoms of emphysema, so friends with emphysema can eat more sweet potatoes to relieve it. Sweet potatoes are rich in vitamin A, and eating more sweet potatoes can effectively reduce the incidence of emphysema.

3. Sweet potato can promote gastrointestinal peristalsis.

Eating sweet potatoes regularly 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. Sweet potato has high dietary fiber content, which can promote gastrointestinal peristalsis and prevent constipation and colorectal cancer.

Extended data

Precautions for eating sweet potatoes:

1, sweet potato contains an oxidase, which easily produces a large amount of carbon dioxide gas in human gastrointestinal tract. Eating too much sweet potato will make people bloat, burp and fart.

2. Sweet potato has high sugar content and more sugar. The body can't absorb it for a while, and the rest will ferment in the intestines, which will also make the stomach uncomfortable.

3. Black-spotted sweet potato is inedible. Eating black-spotted sweet potato may also cause food poisoning, stomach discomfort, nausea and vomiting, abdominal pain and diarrhea. In severe cases, high fever, headache, asthma, hematemesis, unconsciousness, convulsions and coma, and even death may occur.

4, eating cold sweet potatoes is easy to cause gastrointestinal discomfort. Sweet potato produces acid in the stomach, and patients with gastric ulcer and hyperacidity should not eat it. The cell membrane of starch in raw sweet potato is not destroyed by high temperature, which is difficult to digest in human body and not suitable for raw food.

Baidu encyclopedia-sweet potato