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Focusing on lutein and its potential cognitive effects By Stephen Daniells Recent research reinforces the potential cognitive benefits of lutein, with the carotenoid linked to better brain health throughout the lifespan. Lutein is well-established as an eye health ingredient, given that it and zeaxanthin are concentrated in the macula.   The macula is a yellow spot of about five millimeters diameter on the retina (lutein and zeaxanthin are the source of the yellow color). As we age, levels of the pigments in the macula decrease naturally, thereby increasing the risk of age-related macular degeneration (AMD). The link between lutein and eye health was first reported in 1994 by Dr Johanna Seddon and her co-workers at Harvard University, who found a link between the intake of carotenoid-rich food, particularly dark green leafy vegetables like spinach, and a significant reduction in age-related macular degener

United kingdomBilly hammondJohn nolanElizabeth johnsonJohanna seddonJ pediatr gastroenterol nutrStephen beattyCaitlyn edwardsDepartment of psychologyWaterford institute of technologyMacular pigment research groupAntioxidants laboratoryUniversity of georgiaHarvard universityQueens university belfastBrain sciences program