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How Lutein Supports Eye Health “Lutein is a carotenoid, or a naturally ... Promising research found that consuming between 3 milligrams and 20 mg of lutein per day for up to 12 weeks may improve ...
Everything you need to know about supporting your eye health
Lutein is a natural part of a human diet found in orange-yellow fruits and flowers, and in leafy vegetables. According to the NHANES 2013-2014 survey, adults in the United States consume on average 1.7 mg/day of lutein and zeaxanthin combined. [23] No recommended dietary allowance currently exists for lutein.
Meso-zeaxanthin, lutein, and 3R,3′R-zeaxanthin are the main carotenoids in the macula lutea, found in a ratio of 1:1:1, and are collectively referred to as macular pigment (MP). [3] Meso -zeaxanthin is concentrated at the epicentre of the macula, where it accounts for around 50% of MP at this location, with lutein dominating the peripheral ...
The human eye can detect a luminance from 10 −6 cd/m 2, or one millionth (0.000001) of a candela per square meter to 10 8 cd/m 2 or one hundred million (100,000,000) candelas per square meter. [ 18 ] [ 19 ] [ 20 ] (that is it has a range of 10 14 , or one hundred trillion 100,000,000,000,000, about 46.5 f-stops).
“The egg yolks also contain choline, a much-needed nutrient for metabolism, nervous system and liver health, and antioxidants lutein and zeaxanthin, which are helpful for eye health,” she says.