Sweet potato, dialect, mostly refers to sweet potato (sweet potato), and sweet potato is also called sweet potato dried sweet potato. In the south and north of China, it refers to the root tuber of two different plants respectively, while in the north, it mainly refers to sweet potato and sweet potato; And some parts of the south (Sichuan, Chongqing, Hubei and other places) refer to potato (Shage), which is a different species.

Their tubers and tubers are plump, crisp and juicy, rich in sugar and protein, and rich in various vitamins. Can be eaten raw or fried. The starch content in the mature root tuber is high, so starch can be extracted. It also contains dietary fiber, carotene, vitamins A, B, C, E, potassium, iron, copper, selenium, calcium and other trace elements 10, linoleic acid, etc., and has high nutritional value.

Extended data

Sweet potatoes are different in color and nutrition. The content of carotene in sweet potato with yellow heart is high, which is more beneficial to protect eyesight; White-heart sweet potato has high crude fiber content, and its sugar content is 4%~5% higher than that of yellow heart, so it tastes sweeter. Purple sweet potato is a veritable antioxidant with high selenium and anthocyanin content.

It is best to eat with it.

It is best to eat sweet potatoes with vegetables, fruits and foods high in protein, so as not to be out of balance in nutrition. For example, when eating sweet potatoes, you can also eat less meat, which can promote the body's absorption of fat-soluble beta carotene and vitamin E; It can also be paired with some salty foods, which can not only adjust the taste, but also reduce the production of gastric acid and eliminate the discomfort of the stomach; If you are worried about bloating after eating sweet potatoes, you can cook porridge with millet or glutinous rice to relieve discomfort.

Avoid eating on an empty stomach

Because sweet potato contains more sugar, when eaten on an empty stomach, it is easy to stimulate the secretion of gastric acid and easily cause abdominal discomfort. In addition, it contains more fiber, which is easy to cause abdominal distension and increased exhaust.

Not suitable for raw food.

Because the cell membrane of starch in raw sweet potato has not been destroyed by high temperature, it is difficult for human body to digest. At the same time, when cooking sweet potatoes, the cooking time should be appropriately extended, which is more conducive to destroying the "gasification enzyme" contained in sweet potatoes, so that there will be no discomfort such as bloating, heartburn, burping, nausea and exhaust after eating.

vary from person to person

The following groups of people should try to eat less sweet potatoes: First, people with oxalate kidney calculi, because sweet potatoes contain a lot of oxalate. Second, people with chronic stomach diseases, reflux esophagitis and gastric ulcer should not eat sweet potatoes to prevent acid spitting and heartburn, which will aggravate the condition. Third, people with weak spleen and stomach should not eat sweet potatoes to prevent abdominal discomfort and even diarrhea.

You can't eat with skin

Because sweet potato skin contains more alkali, eating too much will cause gastrointestinal discomfort. Brown or dark brown spotted sweet potato skin is even more inedible, because this sweet potato has been infected by black spot pathogen, which is easy to cause liver damage and poisoning after eating. Symptoms such as stomach upset, nausea, vomiting, diarrhea, loss of appetite, fatigue, etc. may occur in patients with mild poisoning, and severe cases may lead to headache, high fever, asthma, convulsions, vomiting blood, coma, and even death.

Proper consumption

Oxidase and crude fiber in sweet potato can produce a lot of carbon dioxide in the stomach and intestines, which will make people abdominal distension and burp, seriously affecting people's digestive function, and eating too much sweet potato can produce a lot of stomach acid, causing abdominal distension, acid reflux and stomach pain.

For people who need to control their weight, eating sweet potatoes can delay the absorption of carbohydrates, but if eaten too much, it will still turn into energy accumulated in the body, causing obesity. Although the resistant starch is not digested in the small intestine, the short-chain fatty acids produced by enteric bacteria's glycolysis after entering the colon can still supply some energy to the body. Therefore, the daily intake of sweet potato should be controlled according to the ratio of potato to staple food of 3:1~ 4:1.

References:

Baidu encyclopedia-sweet potato

References:

People's Network-People's Health Network-Sweet potatoes are delicious and well-fed.