Lutein is a nutrient that belongs to the group of carotenoids and is found naturally in green leafy vegetables such as spinach and kale. It is an antioxidant known for its benefits for eye health, especially when it comes to protecting the eyes from harmful UV rays and blue light from screens. Lutein is also considered to have anti-inflammatory properties and may help reduce the risk of certain eye diseases, such as age-related macular degeneration (AMD). It is common to add lutein to dietary supplements to supplement the diet and support eye health.