howtosupplement
Longevity/Cognition/Beauty

Zeaxanthin

Macular carotenoid that helps protect the retina and may improve visual performance, especially in adults with low dietary intake.

Zeaxanthin

Zeaxanthin

54
score
B
evidence
Safe
risk
Quick Take

Most useful for eye aging and glare/contrast issues — otherwise a niche supplement with modest upside.

Zeaxanthin is a yellow-orange xanthophyll carotenoid found in egg yolks, corn, orange peppers, goji berries, and leafy greens. It concentrates in the macula, where it filters high-energy blue light and helps neutralize oxidative stress in retinal tissue. Best evidence supports raising macular pigment and modestly improving contrast and glare handling; some data also suggest slower age-related visual decline. Adults over 50 and people with low carotenoid intake tend to benefit most.

Proven Benefits

01
Raises macular pigment density
02
Improves contrast sensitivity
03
May speed glare recovery
04
May slow AMD progression
05
May improve cognitive function
06
May support skin photoprotection

Protocol

Amount
2-8 mg
Frequency
Once daily
When
With a meal containing fat to improve carotenoid absorption.

Onset Time

8-12 weeks for pigment changes; 3-6 months for visual effects

Who Should Consider

Adults 50+ concerned about eye aging
People with low carotenoid intake
Frequent drivers bothered by glare
Adults with heavy bright-light or screen exposure
People building an eye-health stack with lutein

Food Sources

  • Goji berries, dried (variable, often several mg per 28 g)
  • Egg yolks (~0.2-0.3 mg each)
  • Orange bell pepper (~0.5-1 mg per medium pepper)
  • Sweet corn (~0.3-0.5 mg per cup)
  • Orange juice (~0.1-0.2 mg per cup)

How It Works

Zeaxanthin accumulates in the retina's macula, where it absorbs blue light and quenches reactive oxygen species created by light exposure. That increases macular pigment optical density and may protect photoreceptors and retinal membranes, which can translate into better contrast and glare tolerance.

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