The efficacy and function of lutein are as follows:
1. Protect the retina: lutein is a good antioxidant, which can avoid oxidative damage to the retina when it absorbs light; It can also protect the microvessels of the eye and maintain good blood circulation.
2. Improve vision: lutein is a high concentration of antioxidants, with the role of filtering blue light, reduce color difference, make vision more accurate.
3. Prevention of glaucoma: lutein can reduce the oxidation intensity of eyeball protein and prevent the incidence of glaucoma.
4. Delay the occurrence of cataract: lutein is the only carotenoid that exists in the lens, which can improve the antioxidant capacity of the lens, reduce the damage of sunlight and free radicals to the eye cells and tissues, and delay the occurrence of cataract.
5. Maintain skin health: lutein intake of human digestive organs, can be converted into vitamin A, can maintain the health of the skin.
Side effects of lutein are as follows:
1：Long-term overdose will increase the burden of liver and kidney and affect the metabolic function of liver or kidney.
2：Long-term overdose, may cause liver and kidney toxic reactions.
3：Long-term overdose, because lutein contains carotenoids, this kind of excessive nutrition will lead to yellow skin.