I don t know where lutein is where it is extracted

You can go to a nutrient store, or order online**, there are formulas containing vitamin A and the like, there are high-purity, Pu Ruitan is, it is recommended to compare it with high purity, the kind that contains vitamin A, most of the vitamin A in it is not natural, there are meals and diets, lutein is difficult to ingest, pure hand-beaten, hope.

The first choice is Puretan, which is very cost-effective, you can go to a nutrient store, or order it online**, there are formulas and the like, and there are high-purity ones.

Lutein is found in many places.

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, and once consumed, it must be supplemented in time, and a single food cannot be satisfied, and it 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 absorbing light; It can also protect the microvasculature of the eye and maintain good blood circulation.

2. Improve eyesight.

Lutein is a very rich 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.

It is a carotenoid extracted from plants that is good for the eyes.

Lutein is a carotenoid found in many vegetables and fruits, and like carotene, it plays an important role in human health.

Lutein products are made of marigold (calendula) as the main raw material, first separated and purified to obtain -carotene, and then oxidized and separated from more than 700 elements of -carotene.

Three characteristics of lutein: It cannot be produced in the body. It can only come from outside food intake or vitamin supplements. It is found in a variety of green vegetables such as spinach, kale, broccoli, etc.

Lutein is the most important nutrient component of the human retina. In the macular part (vision center) and lens of the retina of the eye contain a high concentration of lutein, and lutein can not be synthesized by the human body, it must be absorbed by food, and then break through all difficulties, enter the lens and the macular part of the retina, exert antioxidant effect, neutralize harmful free radicals, absorb blue light harmful to the eyes, and avoid oxidative damage to the eyes caused by light, just like natural sunglasses that filter blue light. Hope it helps you somewhat.

Hehe. The average lutein contained in yellow corn is 22mg kg, which is one of the characteristics of yellow corn.

Lutein is one of the plant cytochromes that can absorb blue-violet light.

A type of leaf pigment. All plant leaves have.

Carrots, kiwi, spinach, Jianshijia lutein.

Lutein and zeaxanthin are widely distributed in nature, and the content is also high, some green vegetables and fruits such as cabbage, spinach, lettuce, mung bean, rape are rich in lutein, but this kind of plant also contains more chlorophyll, -carotene and other carotenoid epoxy and oxygen derivatives, which shades the color of lutein and zeaxanthin; Lutein is the main carotenoid in green leaves; Zeaxanthin is extremely widely distributed, and it is generally associated with progesterone. In the human body, zeaxanthin is digested and absorbed and converted into lutein required by the human body. In most plants, the content of lutein is greater than that of zeaxanthin; Only in corn is the content of zeaxanthin is higher than lutein.

In addition, some yellow-orange fruits such as mango, papaya, peach, pumpkin, etc. are also rich in lutein and zeaxanthin. Lutein itself is an antioxidant and can absorb harmful light such as blue light. Lutein exists in plants in the form of fatty acid esters.

During the saponification of lutein esters, lutein is approximately 1:2 according to the molar ratio. Lutein is also found in egg yolks and animal fats.

Lutein is a lipophilic substance that is usually insoluble in water. Because the chromophore in lutein molecules has a conjugated double bond structure, it has the special property of absorbing light. Animals cannot make lutein on their own, and the lutein in animals (e.g. eyes) is ingested from food.

The yellow color of egg yolks also comes from the lutein ingested. The macula on the human retina has a large accumulation of lutein, and the macula is responsible for the first place of vision. Lutein helps protect the eyes from oxidation and high-energy light damage.

Many studies have confirmed a direct relationship between lutein intake and pigmentation in the eyes. Other studies have also shown that enhancing pigmentation in macula can reduce the risk of eye diseases such as age-related macular degeneration (AMD). As the only randomised clinical trial on the effects of lutein on eye health is a small study, more in-depth studies are needed to determine the effect of lutein on enhancing vision.

After long-term searching, it was found that the content of progesterone and zeaxanthin in marigold flowers is extremely high, and there are few other carothyoid I-like impurities, which are easy to separate and purify, and can be used as a good product for industrial production.

Lutein, which mainly comes from some vegetables. Therefore, its protective effect on vision is quite strong.