Can pig liver really brighten your eyes?

Abstract: one of the important physiological functions of vitamin A is to maintain the normal structure of cornea and the normal function of retina, which plays an important role in maintaining normal vision. If you lack vitamin A, you will have dry eye disease, night blindness and other symptoms., We often hear the saying of “pig liver and bright eyes”. Many people also like to eat pig liver and other animal liver. Chefs also specially developed the dish of “bright eyes pig liver soup”. But is “pig liver bright eyes” true? This is about vitamin A, which can brighten the eyes in pig liver., One of the important physiological functions of vitamin A is to maintain the normal structure of cornea and the normal function of retina, which plays an important role in maintaining normal vision. If you lack vitamin A, you will have dry eye disease, night blindness and other symptoms., But vitamin A is not the more you eat, the better. Vitamin A is fat soluble and is not easy to be excreted from the body. Excessive intake may bring toxicity, which may lead to abnormal bone growth and have a greater impact on pregnant women. The upper limit of vitamin A intake for adults is no more than 3000 micrograms per day., Recommended dietary nutrition guidelines for Chinese residents, Recommended daily intake of vitamin A for adult men (RNI) is 800 micrograms and 700 micrograms for adult women, which is converted into the weight of pig liver, about 14-16 grams. Vitamin A in pig liver is an important organ for storing vitamin A in animals. About 5000 micrograms of vitamin A are contained in 100 grams of pig liver. Therefore, for people who lack vitamin A, pig liver can help supplement vitamin A quickly and maintain visual acuity Strength has a certain effect on health. From this point of view, there is some truth in the saying of “clear eyes” of pig liver, but it is unreliable if we rely on pig liver to treat myopia., Pig liver is not the best choice.

often hear the saying of “pig liver brightens the eyes”. Many people also like to eat pig liver and other animal liver. Chefs also specially developed the dish of “Mingmu pig liver soup”. But is “pig liver bright eyes” true? This is about vitamin A, which can brighten the eyes in pig liver. One of the important physiological functions of vitamin A is to maintain the normal structure of cornea and the normal function of retina, which plays an important role in maintaining normal vision. If you lack vitamin A, you will have dry eye disease, night blindness and other symptoms.

but vitamin A is not the more you eat, the better. Vitamin A is fat soluble and is not easy to be excreted from the body. Excessive intake may bring toxicity, which may lead to abnormal bone growth and have a greater impact on pregnant women. The upper limit of vitamin A intake for adults is no more than 3000 micrograms per day.

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are recommended in the dietary nutrition guidelines for Chinese residents, The recommended daily intake of vitamin A (RNI) is 800 micrograms for adult men and 700 micrograms for adult women, which is converted into the weight of pig liver, about 14-16 grams.

vitamin A in pig liver

Liver is an important organ for storing vitamin A in animals. About 5000 micrograms of vitamin A are contained in 100g pig liver. Therefore, for people who lack vitamin A, pig liver can really help supplement vitamin A quickly, which plays a certain role in maintaining vision health. From this point of view, there is also some truth in the saying of “clear eyes” of pig liver, but it is unreliable if we rely on pig liver to treat myopia.

pig liver is not the best choice.

animal liver is an important detoxification and metabolic organ in animals. Pig liver is the largest “detoxifier” and poison “transfer station” in pigs. Toxic and harmful substances entering the body, such as heavy metals, veterinary drugs and pesticides, are metabolized, transformed, detoxified and discharged from the body in the liver. When liver function decreases or toxic and harmful substances are ingested more, the liver will accumulate these harmful substances. Pig liver is easy to accumulate heavy metals and should not be eaten more.

in addition to heavy metals, pig liver often has higher veterinary drug residues. Generally speaking, the toxins in pig liver, pig heart and other animal viscera are often relatively high.

in addition, the cholesterol content of pig liver is also very high. The cholesterol content of 100g pig liver is 288 mg. High cholesterol intake, especially low-density cholesterol intake, will increase the risk of cardiovascular disease. For health reasons, the daily cholesterol intake from food should not exceed 300 mg.

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supplement vitamin A. It’s better to choose these

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. Pig liver is not the only dietary way to supplement vitamin A. In fact, many green, yellow and orange vegetables and fruits are rich in carotenoids. Some carotenoids have vitamin A activity in the human body and can be transformed into vitamin A. the one with the highest vitamin A activity and the highest content in food is β- Carotene. For most of our residents, β- Carotene is the main dietary source of vitamin A.

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are plant-based sources of vitamin A, namely carotene, which has no toxicity of vitamin A. Even if you eat too much carotene from vegetables and fruits, the result is only carotene excess, which shows that the skin turns yellow, but it is not harmful to health. After stopping, the yellow will subside.

conclusion: “the rich vitamin A in pig liver of

does have some benefits for maintaining vision, but pig liver is not the only way to obtain vitamin A, nor is it the best food source to obtain vitamin A. As an important metabolic organ of animals, pig liver is easier to accumulate some harmful substances such as heavy metals and veterinary drugs. The cholesterol content of pig liver is also very high. It is not a good choice to eat a lot of pig liver for the so-called “eyesight” effect.