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“Crystallized intelligence,” is the ability to use the skills and knowledge one has acquired over a lifetime. Serum lutein levels were correlated with brain concentrations of lutein in older adults and this was associated with increased gray matter volume.

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    Lutein is in most eye supplements…in most people the eyes are directly connected to the brain ;-)

    “Macular degeneration and cataracts are largely driven by free radical damage, and may in many cases be largely preventable by eating foods rich in antioxidants, such as:

        Anthocyanins, found in blueberries, bilberries, and black currants
        Lutein and zeaxanthin found in green leafy vegetables and orange and yellow fruits and vegetables."