Eyes are an important part of the body, and good eyesight can improve our living conditions. Studies have found that lutein helps protect eyesight. This carotenoid is naturally stored in the eyes, but as we age, its content will gradually decrease. The low content of lutein may cause eye aging, fatigue, or promote the occurrence of diseases such as cataracts. Therefore, in order to have healthy eyesight, it is recommended to eat more foods or supplements rich in lutein.