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Lutein & zeaxanthin

The eye's own sunscreen — carotenoids that concentrate in the retina and genuinely slow advanced macular degeneration.

Reviewed by Bodil Isaksson, Licensed Biomedical Scientist (Sweden)Last reviewed July 2026Supplement guide

SupplementsAntioxidantsEyes

Lutein and zeaxanthin are the two carotenoids that build the eye’s macular pigment, filtering blue light and quenching free radicals right where vision is sharpest. They’re among the few antioxidant supplements with hard clinical-trial support.

Key takeaways

  • They form the macular pigment in the retina, filtering blue light and protecting against oxidative damage.
  • In the large AREDS2 trial, lutein+zeaxanthin slowed progression to advanced age-related macular degeneration (AMD) — and were safer than beta-carotene (no lung-cancer signal).1
  • Food sources: leafy greens (kale, spinach), egg yolk, corn.
  • Typical supplement dose 10 mg lutein + 2 mg zeaxanthin (the AREDS2 amounts). Safe.

What they are

Xanthophyll carotenoids selectively taken up into the macula of the retina, where they act as a natural blue-light filter and antioxidant. The body can’t make them — they come from diet.

The evidence

The AREDS2 randomised trial found that adding lutein/zeaxanthin (in place of beta-carotene) to the eye-health formula reduced the risk of progressing to advanced AMD, especially in people with low dietary intake, and later analyses showed sustained benefit.1 Effects on general “eye strain” and contrast are smaller.

Dose & how to use

10 mg lutein + 2 mg zeaxanthin/day with a fat-containing meal. Egg yolk is an especially bioavailable food source.

Safety & who benefits

Very safe (high intakes may faintly yellow the skin). Most relevant for people with or at risk of AMD, and older adults with low leafy-green intake.

Bottom line: a genuinely evidence-based eye supplement — worth it for AMD risk, and best paired with a diet rich in leafy greens and egg.

References

Adult research summary for education, not a prescription.

  1. Secondary analyses of the effects of lutein/zeaxanthin on AMD progression: AREDS2 Report No. 3. JAMA Ophthalmol 2014. pubmed.ncbi.nlm.nih.gov

This article summarises nutrition science for education. It is not a substitute for individual medical advice; consult a professional before starting a supplement, in pregnancy, or alongside medication.