Lutein
A carotenoid pigment concentrated in the macular region of the retina. Multiple large studies support its role in preventing and slowing age-related macular degeneration (AMD) and protecting eyes from blue light.
An ingredient with growing research
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Effects reported in research
Associated with reduced risk and slower progression of AMD (including AREDS2 trial data)
Acts as a blue light filter to protect the retina
Reported improvements in visual contrast sensitivity and glare recovery
Dosage & timing
- 10–20 mg/day of lutein (often recommended in a 2:1 ratio with zeaxanthin).
- Take with dietary fat to improve absorption.
Cautions
- •Excess intake may cause skin yellowing (carotenodermia — harmless but cosmetic).
- •Long-term safety of high-dose carotenoids warrants attention, given lessons from high-dose beta-carotene trials in smokers.
Supporting research
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