Eat Your Kale and Spinach. Lutein May Keep You Sharp.

Now researchers from the University of Illinois have released a study of the cognitive effects of lutein — a nutrient in kale and spinach, as well as in avocados and eggs, that the human body doesn’t produce — in 60 subjects aged 25 to 45. They found that those with higher levels of lutein in their systems exhibited neural responses more like those of younger adults than their peers.


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