What exactly is the power of the small sweet potato to become a "champion dish"? According to experts, sweet potato is not only nutritionally balanced, but also has little-known role in preventing sub-health, weight loss, bodybuilding and anti-cancer.
Sweet potatoes, also known as groundnuts, white potatoes, sweet potatoes, sweet potatoes, sweet potatoes, sweet potatoes, etc., for the family of annual plants, is a kind of medicine and food health food. Sweet potato contains dietary fiber, carotene, vitamins A, B, C, E, and potassium, iron, copper, selenium, calcium and other more than 10 kinds of trace elements, high nutritional value, by nutritionists called the most balanced nutritional health food. Many girls who love beauty feel sweet potato is very sweet, afraid to eat more will get fat. Sweet potato not only will not get fat, on the contrary, can lose weight, bodybuilding, prevent sub-health, laxative detoxification. Each 100 grams of fresh sweet potato contains only 0.2 grams of fat, producing 99 kcal calories, probably for rice 1 / 3, is a very good low-fat, low-calorie food, but also can effectively prevent the sugar into fat, conducive to weight loss, bodybuilding. Sweet potato contains a lot of dietary fiber, in the intestinal tract can not be digested and absorbed, can stimulate the intestinal tract, enhance peristalsis, laxative detoxification, especially for senile constipation has a better effect.
Special emphasis is placed on the sweet potato is alkaline food, and many fruits and green vegetables, which is the most rare. And the general food is acidic, such as grain, chicken, duck, fish and meat, etc., and the human body's PH value of 7.34, so eating sweet potatoes is conducive to the body's acid-base balance. At the same time eat sweet potato can reduce blood cholesterol, prevent sub-health and cardiovascular disease and other "modern diseases".
Sweet potato is not only rich in nutrients, but also in the first place in the anti-cancer food. This literature has a lot of introduction. Japan's national cancer research center announced 20 kinds of anti-cancer vegetables "list" for: sweet potatoes, asparagus, cauliflower, cabbage, broccoli, celery, bell peppers, carrots, cauliflower, amaranth, capers, Brassica rapa, mustard greens, tomatoes, green onions, garlic, zucchini, Chinese cabbage, etc., of which sweet potatoes topped the list. And Japanese doctors through the 26 million people's dietary survey found that cooked sweet potato cancer rate is higher than raw sweet potato. China's medical workers have been on the western Guangxi centenarian township survey found that the longevity of the elderly here have a **** the same characteristics, is used to daily food sweet potato, and even as a staple food. About sweet potato anti-cancer mechanism, is not very clear, there are many kinds of claims. If there are reports that the United States Philadelphia hospital from the sweet potato extracted an active substance - deandrosterone, it can effectively inhibit the occurrence of colon cancer and breast cancer. There is also a U.S. university research found that sweet potatoes have - a kind of substance called dehydroepiandrosterone, on the prevention and treatment of cancer has a certain effect. Our experts believe that the sweet potato has a certain anti-cancer effect, but the sweet potato anti-cancer "ability" can not be exaggerated, to discriminate, because its mechanism is not yet completely clear, the greatest efficacy of the sweet potato should also be placed on the weight loss, bodybuilding, prevention of sub-health, laxative detoxification and other aspects. On the anti-cancer effect, Chinese medicine theory that is due to its laxative detoxification, can play a role in reducing the human body garbage, toxin accumulation. In this regard, the Chinese Academy of Military Medical Sciences oncology center, director of the Army Tumor Professional Committee, deputy director of Professor Song Santai also believes that the mechanism and cause of sweet potato anti-cancer has not been done scientific experiments, theoretically, it is rich in dietary fiber, laxative, treatment of constipation, the prevention of colon cancer and other cancers are beneficial.
Correctly eating sweet potatoes also have to pay attention to, one is to pay attention to must be steamed and cooked through. Because the cell membrane of the starch in the sweet potato is not destroyed by high temperature, it is difficult to digest. Furthermore, the gasification enzymes in sweet potatoes are not destroyed by high temperature, which will produce discomfort after eating. Secondly, it should be noted that when eating sweet potatoes in excess or irrationally, it will cause abdominal distension, heartburn, acidity, stomach pain, and so on. So consumption should not be excessive, Chinese medicine diagnosis of damp obstruction of the spleen and stomach, stagnation of qi and food accumulation should be cautious of eating.
The shortcomings of sweet potatoes, is the lack of protein and lipids, but today people live in affluence, has no longer sweet potatoes as a staple food, it is missing nutrients can be supplemented by other meals. For example, the milk and sweet potatoes at the same time, because milk is rich in protein and fat components.
Small information
According to "Compendium of Materia Medica", "Gleanings from the Compendium of Materia Medica" and other ancient documents, sweet potato has the effect of "replenishing deficiency, benefiting qi, strengthening the spleen and stomach, and strengthening the kidney and yin", so that people can "live a long life with fewer diseases". It can also tonify the middle, harmonize blood, warm the stomach, and fatten the five organs. Contemporary "Chinese Materia Medica" said it: "Sweet flavor, flat nature. Attributes to the spleen and kidney meridians." "Nourishes the middle and harmonizes the blood, benefits the qi and promotes the production of fluids, broadens the intestines and stomach, and relieves constipation. It is used for treating spleen deficiency and edema, sores and swollen poisons, and intestinal dryness and constipation."
Sweet potatoes are native to the Americas, and the first sweet potatoes in Europe were brought back by Columbus in 1492, then introduced to Africa by the Portuguese, and to Asia by the Pacific Islands. Sweet potatoes were first introduced to China during the Wanli period of the Ming Dynasty, when Chen Zhenlong, an overseas Chinese from Fujian Province, often went to Luzon (now the Philippines) to do business, and found that Luzon produced the highest yield of sweet potatoes, so he patiently learned the cultivation method from local farmers. Later, through the promotion of the Chen family, sweet potatoes were widely planted in the country.