"Lao Wang, how do you buy so many sweet potatoes, which are sold cheaply?" Or do you plan to eat sweet potatoes for three meals a day? Aunt Li downstairs saw that Uncle Wang had bought a large bag of sweet potatoes and asked.
"Don't underestimate these few dollars a pound of sweet potatoes, it can be of great effect." Haven't you heard of it? Eating sweet potatoes can destroy a lot of cancer cells, and my old man who is desperate for my life can buy more sweet potatoes to eat," Uncle Wang said.
"What the Internet says is true, and they are all rumors, and I don't believe it." If you can fight cancer as you said, there are so many cancer patients every year, eating sweet potatoes every day can be cured, and it does not cost money to do surgery, chemotherapy," Aunt Li quipped.
Sweet potatoes are one of the more common coarse grains in the mainland, and many of the older generation grew up eating sweet potatoes as their staple food. Especially in winter, the baked sweet potatoes sold at roadside stalls will feel particularly warm when you eat a hot and sweet baked sweet potato.
So, can sweet potatoes really fight cancer as Uncle Wang said? Or is it a lie, as Aunt Li said? The doctor will talk to you about this problem.
First, the Japanese study: sweet potatoes can destroy 98% of cancer cells, is it credible?
First of all, this project was actually developed by scientists from the National Cancer Prevention Research Institute in Japan, based on a follow-up survey of 260,000 people's eating habits. After a comprehensive analysis of the survey data, it was found that vegetables did have a certain anti-cancer effect. Among the vegetables that obviously inhibit the efficacy of tumor cells, the first in inhibition is sweet potatoes, and the anti-cancer rate of raw sweet potatoes is as high as 94.4%, and the anti-cancer rate of cooked sweet potatoes is as high as 98.7%.
So this can show that sweet potatoes can really fight cancer? Gu Chuanling, a nutritionist at the Chinese Nutrition Society, said: Indeed studies have shown that there are anti-cancer chemicals in sweet potatoes, but it is not possible to eliminate cancer cells by eating sweet potatoes alone, and it is also seriously misleading to the masses.
In fact, although sweet potatoes have anti-cancer effects, this experiment was carried out on mice. Scientists first injected mice with substances extracted from sweet potatoes, and after repeated observations, they also compared with reality. In the end, it was found that the cancer cells in these mice were effectively suppressed, and it was also concluded from this experiment that regular eating sweet potatoes could destroy 98% of the cancer cells in the body.
But the biggest oversight of this experiment was in animals, rather than humans. Because the size of the mouse is relatively small, the intake of sweet potato substances is also a trace amount, if it is a human as an experimental object, then the intake of sweet potatoes will far exceed the amount of mice.
So even if the anti-cancer effect can be seen in mice, it is impossible to put this conclusion on the head of humans, not to mention that people and animals are very different. From this point of view, the theory that sweet potatoes can destroy cancer cells has no accurate experimental basis, leading people to start to fake the truth.
Therefore, the rumor that sweet potatoes can destroy 98% of cancer cells is not credible. Sweet potato is just a kind of coarse grain that we commonly see, and a proper diet does have certain benefits for the body, but don't try to try to rely on eating sweet potatoes to play an anti-cancer and anti-cancer role.
If sweet potatoes can really kill anti-cancer cells, all cancer patients in the world are treated by eating sweet potatoes, let alone surgery and chemotherapy. Therefore, the real way to prevent cancer is to eat properly and live a healthy lifestyle.
Although sweet potatoes can not fight cancer, but the above will bring benefits to the body, let's see what benefits will be with the doctor?
Second, although sweet potatoes can not fight cancer, but what are the benefits?
Putting aside the problem of sweet potato anti-cancer, sweet potato is a good food, it is rich in iron, calcium, vitamins and other nutritional values, so proper consumption can have the following benefits:
❶ Can relieve constipation
Constipation is due to inadequate dietary fiber intake or failure to develop good bowel habits. Sweet potatoes are rich in dietary fiber. Because its own dietary fiber is not absorbed by the body, cellulose has hydrophilicity, which can absorb the water of the intestinal lumen and increase the capacity of feces, thereby promoting gastrointestinal peristalsis and playing a role in alleviating constipation.
In addition, people who often have constipation should develop good living habits, avoid eating foods that are too fat, avoid eating spicy and stimulating foods, avoid drinking alcohol, and also pay attention to avoiding fatigue and staying up late. Always eat foods that contain a lot of dietary fiber, such as apples, bananas, spinach, carrots and other foods, which can help defecation.
❷ Protects blood vessels
To a certain age of the elderly, many will have blood clots, blood thick and other symptoms, this symptom will lead to human blood circulation is affected, it is easy to cause cardiovascular and cerebrovascular diseases.
One of the roles of sweet potatoes is to protect blood vessels. Sweet potatoes contain mucus protein, potassium, folic acid, vitamin B6 and other ingredients. These ingredients play a special role in protecting the human body, helping to prevent arteriosclerosis, can well maintain the elasticity of the blood vessel wall, remove cholesterol clumps on the blood vessel wall, and make the blood vessels younger.
At the same time, the elderly with bad heart can also eat sweet potatoes, because the potassium component in sweet potatoes is very large, which can alleviate the disadvantages brought by excessive salt intake to the body, and potassium also plays an important role in protecting the heart.
❸ Can improve immunity
I believe that many people, when the seasons change, the body's immunity will decline, resulting in colds, coughs, runny nose and other symptoms. On the one hand, it is necessary to add or subtract clothes in a timely manner according to the weather, and on the other hand, it is also necessary to pay attention to improving their own immunity.
Sweet potatoes have the effect of boosting immunity. As the best food source for carotene, sweet potatoes help the body make enough white blood cells to fight off the virus brought by colds, thereby boosting its own immunity.
❹ Plays a certain anti-aging effect
As we age, age spots appear on the face. The appearance of elderly spots is mainly due to the large amount of melanin produced in the body. Sweet potatoes contain a special substance - chlorogenic acid. This substance can inhibit the production of melanin, prevent the appearance of age spots and freckles, and delay the action of cellular aging.
What other foods can also be anti-aging? For example, blueberries, grapes, corn, yogurt and other foods, they are rich in anthocyanins, with anti-inflammatory and antioxidant effects
From this point of view, sweet potatoes not only have high nutritional value, but also can bring a lot of benefits to our bodies, but sometimes eating sweet potatoes will also bring some adverse harm to the body, so what matters should be paid attention to when eating sweet potatoes? Let's reveal them one by one.
Third, what other matters need to be paid attention to when eating sweet potatoes?
First of all, we all know in our daily lives that fruits cannot be eaten with seafood, mutton cannot be eaten with watermelon, and other foods, so which food can we eat with sweet potatoes? The answer is persimmons.
Persimmons and sweet potatoes are not suitable for a short period of time to eat together, and if the amount of consumption is large, it is at least 5 hours apart. Because the sugar content of sweet potatoes is relatively high, sugar will be digested in the body and secrete a large amount of stomach acid. Persimmons themselves contain tannins and pectin.
If persimmons and sweet potatoes are used at the same time, the stomach acid and tannins will react to each other, and the precipitation will condense, resulting in hard lumps, causing stomach stones, and gastrointestinal bleeding in severe cases.
Secondly, sweet potatoes can not be eaten too much at a time, because sweet potatoes will produce too much stomach acid, if you eat too much, it may lead to symptoms such as gastritis and stomach ulcers. In addition, you can not simply eat sweet potatoes to alleviate, but also eat more fruits or vegetables that can promote digestion, such as bananas, pumpkins, etc.
At the beginning, it is said that the roasted sweet potatoes in winter are sweet and delicious, but many people will eat them with their skins, so is there any damage to our bodies? Actually, there is. Experts point out that baked sweet potatoes are best not eaten with the skin. Because some stall owners will choose sweet potatoes with dark spots, these black spots have a large number of bacteria, which are not easy to distinguish after baking in the oven. If eaten with the skin, it may cause poisoning.
In addition to the above precautions, we also need to know how to eat sweet potatoes healthily.
4. How to eat sweet potatoes healthily?
Many people like to eat sweet potatoes instead of staple foods at night, thinking that they can lose weight, but doctors recommend that eating sweet potatoes is better time at lunch, because after eating sweet potatoes, the calcium absorbed by the human body needs to be absorbed for 4-5 hours, and it is the afternoon sun that can promote the absorption of calcium.
After investigation, some people think that sweet potatoes can be eaten raw, and these people think that eating them raw can absorb more nutrients inside. But the truth is that sweet potatoes must be cooked before they can be eaten. This is because sweet potatoes contain a lot of starch, if eaten raw, the starch is difficult to digest, it will be easier to increase the burden of digestion in the stomach, so that the probability of stomach disease will be greatly improved.
In fact, sweet potatoes can not only be eaten as a staple food, but also can be used with some ingredients as a small dessert, and sweet potato milk drink is a very good choice. Sweet potatoes contain starch, sugar and dietary fiber, but lack protein, and milk contains protein and fat. Sweet potato milk drink can be conducive to the nutritional balance of sweet potatoes and make up for deficiencies. The specific operation steps can refer to:
First, the sweet potatoes are washed, peeled and thinly sliced. Then, add the right amount of water to the boil, pour the cut sweet potato chips into the boiling water and cook. Add milk powder, you can use chopsticks to cook while stirring, so that sweet potatoes and milk are fully integrated, and finally, out of the pot can be eaten.
5. Summary
Overall, sweet potatoes are not only rich in nutrients, but also have many benefits, but they can eliminate 98% of cancer cells, which is obviously impossible. Remember not to trust some false rumors, correctly understand the benefits of sweet potatoes, and at the same time, when enjoying sweet potato delicacies, you must also pay attention to eating matters to avoid the wrong way of eating but affecting your health.
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Wang Fengcheng. Eat sweet potatoes in this way without burning the heart[J]. Medicine and Healthcare, 2009(10):1.
LI Shengxian. Eating sweet potatoes for fitness and fitness[J]. Family Traditional Chinese Medicine, 2000.
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