When it comes to protecting the health of vision, many people first think of maintaining good eye habits and reducing the use time of electronic products. However, Zhao Xia, director of the Nutrition Department of Beijing Jishuitan Hospital, said that a good intake of dietary nutrients can also help us better protect our vision. On the occasion of the 26th National Eye Love Day, we will talk with Director Zhao Xia, which nutrients are related to our vision? How should these nutrients be supplemented in daily life?
Vice Chairman of the Clinical Nutrition Branch of the Beijing Medical Association, Member of the Nutrition Physician Professional Committee of the Chinese Medical Doctor Association, Member of the Beijing Clinical Nutrition Quality Control Center, Director of the Council of the Beijing Dietitians Association, Standing Director of the Beijing Perioperative Medical Research Association, Standing Committee Member of the Diabetes Prevention and Management Professional Committee of the Chinese Health Management Association, and Vice Chairman of the Dietary Health Professional Committee of the Beijing Health Education Association.
Expert Interpretation:
The main nutrients related to the eyes are vitamin A and lutein. Lutein is derived from plants, so what are its benefits? Lutein is mainly two major roles, one is the filter effect, and the other is the antioxidant effect. The first is the filtering effect. At present, young people use computers, mobile phones and other electronic products for a long time. Then the backlight board of these electronic products has a certain amount of blue light, which is harmful to the retina of the eye. Lutein in the retina it can play a role in absorbing blue light, like a protective film like filtering effect, for young people who look at more electronic products, we recommend that he supplement some lutein.
At the same time, the lutein intake of the elderly is often relatively small, and the vision loss of the elderly is related to the macular degeneration, so lutein supplementation can also prevent the elderly macular degeneration. In fact, we have to supplement a lot of foods rich in lutein every day, which can supplement the lutein in the body and prevent macular degeneration, which is very good for the eyes.
At the same time, Zhao Xia suggested that the most fundamental reason for the occurrence of myopia is that the length of the patient's eye axis has changed, so blindly supplementing nutrients such as lutein cannot play a decisive role in preventing myopia. While ensuring good eye hygiene habits, balance the diet and pay attention to the intake of high-quality protein, vitamin A, lutein, zinc and other nutrients to achieve better prevention and control effects. So how do we get these nutrients in our daily lives?
In fact, egg yolks, corn, and dark green vegetables, as well as some yellow fruits, such as mangoes, papayas, etc. all contain lutein. Vitamin A is actually derived from animal and plant sources. Animality is derived from the liver of animals, and its absorption rate is also high; plant nature is derived from carotenoids. There are many plant sources of carotenoids in life, carrots, pumpkins, yellow-colored bell peppers, papayas, mangoes and other vegetables and fruits are very rich in carotenoids. In fact, when we have to choose every day, we should pay attention to "color matching", and dark green vegetables also contain carotenoids. When carotenoids are taken into our bodies, they are transformed into vitamin A through the intestines. Therefore, the source of vitamin A is relatively extensive, as long as we are not picky, we can ensure adequate intake.
Source: Xinhua Net