Carotenoids are pigments of yellow, orange and red color in plants. They include lycopene, alpha and beta-carotene, beta-cryptoxanthin, lutein and zeaxanthin. Classified as phytonutrients with an antioxidant function, they have anti-inflammatory effect, boost immunity and some of them get converted to vitamin A in our bodies and are beneficial for eye health. Some carotenoids can lower cancer risk, especially lung and skin one. They are best absorbed when consumed with some fats. Most carotenoid-rich foods include kale, spinach, cantaloupe, bell peppers, tomatoes and carrots.