Lutein and Zeaxanthin
Lutein and zeaxanthin are members of the carotenoid family, a group of useful substances that plants produce. Both of these carotenoids may be found in your eyes' macula and retina, where they help filter potentially damaging blue light, safeguarding your eyes. Several studies indicate that these plant components may help to prevent cataracts and reduce the course of AMD. A randomized, controlled trial discovered that lutein may be beneficial to persons with cataracts. Over a two-year period, participants who took supplements containing 15 mg of lutein three times per week saw improvements in their eyesight.
These chemicals do not have recommended daily intakes or acceptable supplementary dosages. However, studies have utilized up to 20 mg of lutein per day for two years with no deleterious effects. However, supplements may not be required. A diet rich in fruits and vegetables naturally offers 6 mg of lutein and zeaxanthin, which may give advantages. These carotenoids are notably abundant in cooked spinach, kale, and collard greens.