Is This One of the Best Nutrients for Your Eyes and Brain?
From Joseph Mercola, DO While there are about 850 known carotenoids, most are not found in the human body and only lutein, zeaxanthin and astaxanthin cross the blood-retina barrier to form macular pigment. Your retina is an extension of your brain, where lutein also accumulates throughout the human lifespan, hinting at its importance for both […]