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Zeaxanthin (3,3-dihydroxy-carotene), also known as zeaxanthin, belongs to the isoprene class, is a new type of oil-soluble natural pigment, often coexisting with cryptoflavin, carotene, lutein, etc., to form a carotenoid mixture.
Lutein and zeaxanthin are two important carotenoid components. Carotenoids are a group of fat-soluble pigment substances commonly found in foods such as vegetables and fruits, and in addition to providing yellow, orange, and red colors, they are also believed to have a preventive effect on many chronic diseases, including some tumors and eye diseases. For example, carotene from vegetables and fruits has a strong preventive effect on lung and stomach cancer, and lycopene (1ycopene) reduces the risk of ovarian and prostate cancers.
In addition to the fact that some carotenoids have a provitamin A effect, the health effects of carotenoids are thought to come from their prevalent strong antioxidant capacity. The effects of lutein and zeaxanthin on visual health have become increasingly popular due to the high concentration of lutein and zeaxanthin in specific eye tissues, especially epidemiological studies that have found that increasing dietary intake of lutein and zeaxanthin can reduce the risk of age-related macular degeneration and self-cataracts.
Lutein and zeaxanthin cannot be synthesized directly by the human body, and all carotenoids present in human tissues must be used in the diet or other related foods such as breast milk and dietary supplements. The richest foods of lutein and zeaxanthin** are dark green leafy vegetables, with a content of 7 5-15 0 mg per 100g of spinach and kale; Medium-sized foods such as cabbage, peas, corn and lettuce contain 1 0 -3 0 mg per 100g; Other foods, such as beans, carrots and citrus, contain less than 1 0mg per 100g. Egg yolk is also an effective dietary effect for lutein**, especially when marigold extract is added to chicken feed to improve the color of egg yolk, which is more abundant.
The ** of lutein and zeaxanthin in infants is breast milk (breastfeeding), and breast milk contains a certain amount of lutein and zeaxanthin. In addition to the trace amount of carotene, ordinary milk contains almost no lutein and zeaxanthin. Most commercially available infant formulas contain little lutein and zeaxanthin, or only trace amounts of lutein and zeaxanthin from formula ingredients.
Reference: 1Zeaxanthin properties and application research.
2.Effects of lutein and zeaxanthin on visual development and health.
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Lutein: orange juice, spinach, carrot, kiwifruit, zeaxanthin: goji berry, broccoli.
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Zeaxanthin is a typical oil-soluble chloroplast pigment. In nature, it is widely found in green leafy vegetables, flowers, fruits, goji berries and yellow corn, among others. The main pigment of yellow corn is zeaxanthin, which is found in corn kernels at about .
Green leafy vegetables are the main dietary element of lutein**, but they contain less zeaxanthin.
In the human body, zeaxanthin is mainly distributed in tissues and organs such as eyes, liver, pancreas, kidneys, spleen, and ovaries, and plays an important role in health. In the eye, zeaxanthin is mainly concentrated in the center of the macular area of the retina. Humans and animals cannot synthesize zeaxanthin on their own and must be obtained through food or supplements.
Zeaxanthin's diet** mainly includes yellow corn, orange bell peppers, orange juice, honeydew melon, mango, raspberries, blueberries, peaches, goji berries, egg yolks, etc.
The known effects of this type are:
1. Anti-cancer. Zeaxanthin, like many carotenoids, can resist the damage caused by free radicals in the human body to cells and organs, so this product has the effect of reducing the occurrence of cancer and enhancing immune function.
2. Prevent cardiovascular disease.
Because zeaxanthin can inhibit low-density lipoprotein (LDL) oxidation under in vitro conditions, it can significantly reduce the incidence of myocardial infarction and help slow down the progression of arteriosclerosis.
3. Prevention of cataracts.
Zeaxanthin, as a strong antioxidant, can prevent the formation of cataracts because it can quench the triple state of singlet oxygen and photosensitizer, scavenge damaging oxygen free radicals, prevent membrane lipid peroxidation, and reduce the formation of lipofuscin.
In addition, it can also enhance the macular area's ability to resist harmful substances and light ray damage, so it is necessary for the eyes to supplement this nutrition, and Leeye Vision Nutrient is a representative of this aspect, which is rich in zeaxanthin, which is the best choice for people with poor eyesight.
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1. The effects of zeaxanthin are as follows:
Zeaxanthin has health effects such as antioxidant, prevention of macular recession, cataract, prevention of cardiovascular diseases, enhancement of immunity, and slowing down atherosclerosis, which is closely related to human health.
Zeaxanthin is an oxygen-containing natural carotenoid, which is an isomer of lutein. Zeaxanthin itself is a normal ingredient in food, which has both nutritional fortification and certain pharmacological effects, and has a positive effect on regulating animal metabolism, which is in line with the development direction of natural food additives "natural", "nutritious" and "multi-functional". Zeaxanthin is abundantly found in plant tissues such as green vegetables, corn seeds, goji berries, and sour berries and some non-photosynthetic bacteria.
Zeaxanthin has strong antioxidant properties, in living organisms, zeaxanthin is an important strong antioxidant available to the human body, zeaxanthin plays an antioxidant role by reducing the reactivity of chemically active substances such as free radical singlet oxygen and photochemical sensitizers.
Second, the role of lutein is as follows:
1. Vision protection.
Lutein absorbs blue-violet light, which helps protect the retina of the eye from ultraviolet rays. For the eyes, lutein is an important antioxidant that plays a role. Supplementing a large amount of lutein in the human body can maintain the durability of vision, improve visual reaction time, and reduce visual damage.
For people with myopia, supplementation with lutein can delay the increase in myopia, and regular use of lutein can effectively prevent the damage of computer radiation to the human body.
2. Coloring.
Lutein is widely used in condiments, tobacco, pastries, confectionery and a variety of feed processing. In China, lutein has been widely used as a colorant.
3. Antioxidant effect.
Lutein has a strong antioxidant capacity, which can inhibit the activity of oxygen free radicals and prevent the destruction of normal cells by oxygen free radicals.
4. Anti-cancer effect.
Lutein has unique biological effects in inhibiting tumor growth, and its mechanism mainly includes antioxidant activity, inhibition of tumor angiogenesis and cell proliferation.
5. The role of preventing diabetes.
Lutein can be used as an effective adjuvant to enhance the hypoglycemic function of insulin. Therefore, eating foods such as vegetables and fruits rich in lutein can reduce the risk of diabetes.
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Both lutein and zeaxanthin have strong antioxidant effects, especially to protect the eyes. The imaging part of the human eye is the retina, and the retina has a "macula", and the yellow nutrients in it** are lutein and zeaxanthin. These two types of nutrients can reduce the damage of ultraviolet rays to the eyes, delay the aging of the eyes, and prevent eye diseases such as macular degeneration and cataracts.
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Lutein, also known as phytoprogesterone, is a carotenoid with the chemical formula C40H56O2, which is widely found in vegetables, fruits, flowers and other plants, and its chemical formula contains two ketone rings, which are the main pigments present in the macular area of the retina of the human eye.
A variety of green leafy vegetables such as spinach, mustard greens, lettuce, broccoli, winter melon, green radish, corn, etc. contain a very large amount of lutein, and kiwifruit and egg yolk also contain lutein.
However, the content of lutein in the human body is particularly small, once consumed, it must be supplemented in time, and a single food can not be satisfied, and must be supplemented by in vitro nutrients.
Guidance: Leyan Vision Nutrient is rich in lutein, and it has a good effect if you take it consistently. Many children are using it, without any ***, which is the first choice for children's lutein.
The currently known effects of lutein are:
1. Protect the retina and ensure clear vision.
Lutein is a good antioxidant that can prevent the retina from oxidative damage when it absorbs light; It can also protect the microvasculature of the eye and maintain good blood circulation.
2. Improve eyesight.
Lutein is a very strong antioxidant that helps filter out blue light, reduce color aberration, and make vision more accurate.
3. Prevention of glaucoma.
Lutein can reduce the oxidative strength of ocular proteins, and the higher the intake, the lower the incidence of glaucoma.
4. Delay the occurrence of cataracts.
Lutein is the only carotenoid found in crystals, which can enhance the antioxidant capacity of crystals, resist damage from sunlight and free radicals, and delay or prevent the occurrence of cataracts.
5. Prevent the sequelae of high myopia.
High myopia is prone to retinal detachment, hydrops, floaters, etc., and even leads to permanent blindness.
6. Reduce macular degeneration and lesions.
Macular degeneration is a leading cause of blindness in older adults. Lutein has been shown to help improve vision in elderly patients with degenerative macular disease.
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Although lutein and zeaxanthin can play a protective role in our eyes, and can also effectively reduce the harm to pregnant women, they are not the same. To put it simply, lutein and yellow zeaxanthin have certain similarities, but there are also certain differences, lutein is a nutrient that is more commonly used in the eyes, while zeaxanthin is relatively inferior in the effect of acorn, so it is not as widespread as lutein in daily use. Lutein and zeaxanthin are some nutrients that our body cannot synthesize on its own, so we need additional community, and the foods that contain lutein and zeaxanthin in daily foods are different, which is also one of the differences between the two.
What is the difference between lutein and zeaxanthin? In the above article, we also introduced to you, we normally see that there are certain differences between the two, but there are similarities, especially for the protection of our eyes is very powerful.
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The retina is responsible for the function of synthetic images, one of which is mainly composed of nutrients, namely lutein and zeaxanthin, the use of two nutrients can protect the eyesight and bright birds, reduce ultraviolet rays, prevent cataracts and macular degeneration of the retina, both substances are part of carotenoids, have a vital impact on visual health, want to supplement the two substances, must find relevant nutrients from the diet, peas, cabbage, Corn contains a lot of zeaxanthin and lutein. Egg yolk is rich in reserves, if you want to reduce the harm of sunlight to the eyes, so that the pupils become brighter, you can not ignore the intake of two substances, they have important physiological functions, the diet is supplemented with corn, millet, black beans, spinach, yellow grains, etc., can supplement the two substances, the above is the role of lutein zeaxanthin, their molecular weight is about 1000 daltons, in antioxidant, filter blue light has a huge use, The age group of two to 10 years old is the critical period when these two nutrients need to be supplemented, and the baby's retina needs lutein and zeaxanthin to maintain oxygen transport in the capillaries and resist DNA oxidation.
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Summary. Dear Hello, glad to be able to your question.
Lutein is not always found in corn, and lutein is usually found in yellow cornmeal, while lutein is usually absent in white cornmeal. Lutein protects eyesight while also providing nutrients to the eyes. Cornmeal is rich in cellulose and unsaturated fatty acids, which can reduce the concentration of cholesterol, prevent cholesterol from being deposited on the blood vessel wall, and have a certain effect on the prevention and treatment of cardiovascular and cerebrovascular diseases.
Yellow cornmeal contains lutein and does not contain lutein.
Dear Hello, glad to be able to your question. Corn does not necessarily have leaf lixanthin, generally yellow cornmeal only lutein, cherry blossom and white cornmeal usually do not have lutein. Lutein protects eyesight while also providing nutrients to the eyes.
Cornmeal is rich in cellulose and macroscopic unsaturated fatty acids, which can reduce the concentration of cholesterol, prevent cholesterol from being deposited in the blood vessel wall, and have a certain effect on the prevention and treatment of cardiovascular and cerebrovascular diseases.
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