In recent years, through relative study, some nutritionists have found that, in addition to various kinds of nutrients which are known to us, fruits also contain a large number of natural plant compounds. By increasing the antioxidant ability, regulating the activity of detoxification enzyme, stimulating the immune function, improving the metabolism of hormone, and increasing the anti-virus and anti-bacterial effect, these substances can play a role in delaying aging. The variety, distribution, and function of these anti-aging components are as follows:

First, B carotene
B carotene is mainly contained in yellow and orange fruits, such as mango, apricot, cantaloupe, papaya, and so on. B carotene can help delay the aging process, prevent and treat certain kinds of tumors. What's more, it can also improve the function of the lung and reduce the complications of diabetes.

Second,
Lutein is mostly contained in fruits such as kiwi and pomegranate. It can help the elderly people protect their eyesight, and reduce the incidence of cataract. In addition, it may also have a preventative effect for the occurrence of some tumors.

Third,
Lycopene is mainly contained in fruits such as tomato, dark red grape, watermelon and so on. It can help reduce the incidence of prostate cancer and heart disease.

Fourth,
Ellagic acid is mostly contained in fruits such as grape, blueberry, strawberry, kiwi, and so on. It not only can help reduce the incidence of some kinds of tumors, but also has an effect of lowering the lipids.

Fifth, resveratrol
Red grape contains a large number of resveratrol, which can help reduce the occurrence of heart disease, stroke, tumor, and so on.

Sixth,
Quercetin is mainly contained in fruits such as apple, pear, cherry, grape and so on. It is very effective to reduce the reaction of inflammation and protect the lung. What's more, quercetin also has some effect for the protection and treatment of some kinds of tumors.

Seventh,
Hesperidin is mostly contained in orange, grape, lemon and other fruits. It can help prevent heart disease.

Eighth, alkene
Alkene is mainly contained in the peels of orange, grape, lemon, and so on. It can help protect the lung, and reduce the occurrence of certain tumors.

From what we have discussed, we can see that fruits have very good anti-aging effect. As a result, it is highly recommended by the experts that the elderly people should take in 200 to 400 grams of fruits every day.