howtosupplement
Longevity/Beauty/Cognition

Lutein

Carotenoid from leafy greens and egg yolks that supports eye health and may aid cognition and skin resilience in adults.

Lutein

Lutein

56
score
B
evidence
Safe
risk
Quick Take

Best for eye health, especially if you eat few greens; skin and cognition benefits are possible but less certain.

Lutein is a yellow xanthophyll carotenoid found in spinach, kale, corn, egg yolks, and marigold extract. It concentrates in the retina and, with zeaxanthin, helps filter high-energy blue light while limiting oxidative damage in macular tissue. Best-supported benefits are better contrast sensitivity and support for age-related visual function, with weaker evidence for skin photoprotection and cognition. Adults with low vegetable intake, high visual demands, or concern about eye aging tend to benefit most.

Proven Benefits

01
Improves contrast sensitivity
02
Slows age-related vision loss
03
May improve skin photoprotection
04
May improve memory/attention
05
May reduce visual fatigue

Protocol

Amount
10-20 mg
Frequency
Once daily
When
With a meal containing fat to improve absorption; consistency matters more than time of day.

Onset Time

8-12 weeks subjectively; 3-6 months for eye-test changes

Who Should Consider

Adults 50+ concerned about eye aging
People who eat few leafy greens
Heavy screen users with visual fatigue
Adults with low dietary carotenoid intake

Food Sources

  • Cooked kale, 1/2 cup (~11-12 mg)
  • Cooked spinach, 1/2 cup (~10-12 mg)
  • Corn, 1 cup (~1-2 mg)
  • Egg yolk, 1 large (~0.2-0.3 mg)
  • Pistachios, 30 g (~0.3 mg)

How It Works

Lutein accumulates in the macula and brain, where it acts as an antioxidant and filters short-wavelength blue light. This can reduce oxidative stress in retinal membranes and may support visual processing in tissues that are highly exposed to light and oxygen.

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