A new study has found that higher blood levels of Lutein and Zeaxanthin may be associated with improved memory, cognition and executive function. Data from this study found higher Zeaxanthin levels were associated with increased processing speeds and higher levels of both Zeaxanthin and Lutein were associated with enriched scores for many cognitive measures.
Data from over 4,000 adults aged 50 and older was analyzed. Researchers inferred that a good biological basis exists for hypothesizing that Lutein and Zeaxanthin may be neuroprotective due to their anti inflammatory cell signaling properties and due to their antioxidant properties.
A link between eye health and Lutein was established in 1994 when researchers found a link between the consumption of dark leafy vegetables (carotenoid rich foods) and a reduction in the incidence of age-related macular degeneration (AMD). Additional studies now support the effects Lutein has on brain health. Studies show that the carotenoids found in pediatric brain tissue is 60% Lutein yet only about 12% of the carotenoids found in the average diet contains Lutein. Researchers have concluded that the brain has a preference for Lutein.
More studies are definitely needed.
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