Lutein – významný karotenoid ve výživě člověka
Carotenoids are one of the most used natural colorants due to their non-toxic nature and wide occurrence. Carotenoids are commonly found in orange, yellow and green fruits and vegetables. Lutein is a yellow pigment ranking among carotenoids. Lutein occurs in green vegetables, fruits like mango and papaya, red paprika, alfalfa, algae, yellow corn, and marigold flower. In animals it occurs in egg yolks and also in the macular region of the eye retina. Humans are not able to synthesize lutein depending entirely on natural sources or dietary supplements.