But it has two aspects. There is a saying that apple peel can cause cancer! The reason is that if the attached pesticides are ingested into the human body, it will endanger the health of consumers.
Let's look at a small apple. It has a lot of knowledge!
There are few apples and high nutritional value.
First of all, apples are rich in nutrition. Mainly sugar, organic acids, vitamins, dietary fiber, minerals and enzymes.
The soluble sugar content in apples accounts for 8% of this ratio? 13%, in which the proportion of fructose is the highest, reaching 43.7%? 55.7%。 Sugar is the main energy source of human body. If the human body lacks sugar, it will cause hypoglycemia.
If you insist on eating an apple every day, your body will slowly produce four "changes". It doesn't matter.
Secondly, natural chemical antioxidants such as polyphenols and flavonoids contained in apples can quickly remove metabolic "garbage" in the body and reduce the content of neutral fat in the blood.
Third, it can promote physical activity. Enzymes in apples refer to enzymes. Most fruits and vegetables contain a certain amount of enzymes, so do apples. Enzymes are catalysts for various reactions of human body, which can promote various activities of human body. Lack of enzymes can lead to some physical activities not being completed smoothly.
Fourth, apples also have certain anti-cancer effects.
Study on anti-cancer effect of apple
Italian researchers have done a survey. They analyzed the diet of 629 cancer patients in detail and found that eating more than one apple a day is harmful to colorectal cancer, esophageal cancer and laryngeal cancer, while eating less than one apple a day. Cancer, breast cancer and ovarian cancer have preventive effects, and the risk control degree is 9% to 42%.
Researchers at Cornell University in the United States isolated various compounds from 24 pounds of apple peel and tested the effects of each component on the growth of cancer cells in the laboratory. They found that apple peel contains more than a dozen triterpenoids such as flavonoids and dietary fiber, which can not only effectively inhibit the proliferation of cancer cells, but also directly kill cancer cells, especially human liver cancer Hep G2 cells, MCF-7 human breast cancer cells and Ca Co-2 people. These three effects of colon cancer cells are more significant.
As for the research on anti-cancer of apples, some analysts think that the anti-cancer effect of apples may come from free flavonoids in apples. As a natural antioxidant easily absorbed by human body, it can reduce the genetic material DNA of human body. Oxidative damage, thus reducing the possibility of cell mutation and achieving anti-cancer effect.
However, the above research also has some limitations. For example, the number of respondents is too small to be universal, and animal experiments do not mean that they will have such an impact on human beings. Therefore, whether eating apples can really help us fight cancer still needs more evidence and clinical data. How to eat apples healthily?
Some people like to peel apples because they hear that pesticide residues or artificial wax on the skin can cause cancer, or they think the skin is not easy to digest.
Compared with pulp, apple peel does contain more pesticide residues and artificial wax, but only one or two apples can be eaten every day. The intake of pesticide residues and artificial wax does not actually pose a threat to human body, and there is no evidence that these pesticide residues and artificial wax have carcinogenic effects.
In fact, these substances are basically combined with dietary fiber, which will not be absorbed when entering the human body, but will be directly excreted after entering the large intestine. So don't worry about the threat of peel to health.
In addition, the contents of dietary fiber, anthocyanins and antioxidants in the peel greatly exceed those in the pulp, which has better gastrointestinal health and anti-cancer effects, so there is no need to worry about the digestibility of apple peel.
Of course, if you are really not used to eating apple skins, peeling them is fine. If you lose interest in eating apples because of the trouble of apple skin, you will get more benefits than you do, so you don't have to worry too much.
Apples are good food, but if the rot and erosion exceed 1/3, they are not suitable for eating. If they are moldy, even if only one corner is moldy, they must be thrown away, because mold will spread to the whole apple tissue. Cut off the moldy parts and other invisible parts, and it also contains a lot of molds and toxins invisible to the naked eye. The intake of mold will bring serious threats, such as food poisoning and cancer, which is much more terrible than pesticide residues.
In addition, patients with ulcerative colitis should not eat apples raw. Apple's texture is hard, and the stimulation of 1.2% crude fiber and 0.5% organic acid is not conducive to the healing of intestinal ulcer surface, which can be mechanically affected. The function of intestinal wall is easy to cause complications, such as intestinal perforation, intestinal dilatation and intestinal obstruction.
Introduction: Apple can be said to be a good and cheap fruit in everyone's eyes. It is rich in nutrition and beneficial to health. However, we can't regard it as a "healthy product". We should concentrate on treating diseases and keep a rational attitude.