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How to eat apples: It is best to eat apples with skins

Apples are rich in vitamin C, vitamin E, polyphenols and flavonoids, which are natural antioxidants, and are especially effective in preventing cardiovascular and cerebrovascular diseases. Apple contains much more calcium than ordinary fruits, which can help to metabolize excess salt and help to lose weight. Apple is the protector of cardiovascular system and the healthy fruit for patients with heart disease, because it contains no saturated fat, cholesterol and sodium. The gum in apple can keep the blood sugar stable, and it can also effectively lower cholesterol.

According to some data, people who love apples have a lower chance of catching a cold. Eating apples can improve respiratory system and lung function, and protect the lungs from pollution and smoke. Apples can also prevent cancer and lead poisoning. A new study by Rio de Janeiro State University in Brazil found that eating three small apples a day helps women lose weight.

However, when eating apples, many people like to peel them off. Little did they know that many nutrients in apples are just hidden in the skins.

Apple peel contains many bioactive substances, such as phenols, flavonoids, octacosanol, etc. These bioactive substances can inhibit angiotensin converting enzyme, which causes high blood pressure, and help to prevent chronic diseases, such as cardiovascular diseases and coronary heart disease, and reduce their incidence. It can also reduce the incidence of lung cancer. Foreign studies show that apple peel has stronger antioxidant capacity than pulp, and the antioxidant capacity of the peel of ordinary size apple is equivalent to that of 8 mg vitamin C. Apple peel can inhibit the growth of bacteria in the mouth and protect teeth. It can also make skin white and tender, prevent melanin production, and have cosmetic effect. Therefore, it is suggested that people should eat apples with their skins.

What should I do if the apple skin is waxed?

In order to keep apples fresh for a long time, make them easy to store and look good, fruit sellers will wax them. In fact, the wax on apple skin is mainly divided into the following three types:

The first type is natural fruit wax, which is a lipid component and a plant protective layer generated on the surface of apple. It can effectively prevent external microorganisms, pesticides and so on from invading the pulp and play a protective role, which does not need to be removed.

The second kind, artificially added edible wax, is actually a chitosan substance, which is mostly extracted from crustaceans such as crabs and shells. This substance itself is harmless to the body, and its function is mainly used to keep fresh and prevent apples from rotting and deteriorating during long-distance transportation and long-term storage. It is also very simple to remove this layer of wax, and it can be removed by washing it directly with hot water.

The third kind, industrial wax, contains mercury and lead which may seep into the pulp through the peel and bring harm to human body. The identification method is: wipe the surface of the peel with your hands or napkins. If you can wipe off a faint red substance, it may be industrial wax. To deal with this kind of wax, you can put apples in hot water with moderate temperature. The wax will melt when heated, but the water temperature should not be too high. What needs special reminder is: Never soak and wash fruits for a long time, because it will cause harmful substances such as pesticide residues and microbial bacteria to penetrate into the pulp, which will not only fail to achieve the purpose of cleaning, but also "get dirtier and dirtier" and be harmful to health.