Lutein is a pigment widely found in green vegetables. The color of this pigment is yellowish red and can effectively absorb blue light. From this point of view, it does have the effect of protecting the eyes .
Lutein is concentrated in the macula of the human eye in the human body. What is the origin of the macula?
The external light falls on the retina, so we have vision and see the world. The exact center of the retina is called the macula, and human central vision is mediated by cells in the macula.
The functions of these cells in the macula are inseparable from three important pigments. They are lutein, zeaxanthin and racemic zeaxanthin. The chemical structures of these three pigments are very similar .
Among them, lutein and zeaxanthin cannot be synthesized by the human body and must be obtained through diet, while racemic zeaxanthin can be converted from lutein by the human body. Lutein and zeaxanthin are widely found in food, especially in green leafy vegetables.
Simply put, lutein is widely present in food, and it is also one of the important pigments in the macula on the retina.