Lutein is a fat-soluble vitamin, and its absorption spectrum contains near blue-violet light, which can help the retina of the eye resist ultraviolet rays. Lutein is an important eye antioxidant. Supplementing a large amount of lutein to the human body is helpful to maintain the persistence of vision, improve the visual reaction time and reduce the visual damage. For myopia, lutein supplementation can delay the aggravation of myopia, and regular use of lutein can effectively prevent the harm of computer radiation to human body.

2. Coloring effect

Lutein is widely used in condiment, tobacco, cake, candy and various feed processing. Lutein is widely used as a colorant in China.

3. Antioxidant effect

Oxygen free radicals in human body are an important cause of many age-related diseases. Lutein has a strong antioxidant capacity, which can inhibit the activity of oxygen free radicals and prevent their damage to normal cells.

Side effects of lutein:

When taking lutein, as long as it is taken in strict accordance with the dosage specified in the instructions, there will be no obvious side effects, but if it is taken in excess of the dosage specified in the instructions for a long time, it may have certain side effects on liver and kidney.

Because almost all drugs will be metabolized by the liver or kidney, taking too much will increase the burden on the liver and kidney. Lutein is also compounded with other nutrients, such as vitamins C and E. If ingested in excess, it may cause toxic reactions to the liver and kidneys, and destroy the functions of the liver and kidneys.

Refer to the above? Baidu encyclopedia-lutein