4/5
Strong
evidence
Eye health evidence brief
Lutein + zeaxanthin
Lutein and zeaxanthin support macular pigment and have the clearest case in age-related macular degeneration nutrition formulas.
Headline Finding
AREDS2: adding lutein/zeaxanthin to the formula was safe and secondary analyses favored substitution for beta-carotene in AMD contexts.
Dose Context
AREDS2 used 10 mg lutein plus 2 mg zeaxanthin daily as part of a broader eye-health formula, not as a general vision enhancer.
Important Caveat
The strongest evidence is for people with AMD risk or low dietary intake. It should not be framed as improving normal eyesight in healthy users.
Source Drawer
Linked Research
- Trial AREDS2 randomized trial
- Full text AREDS2 full text
- Review NEI AREDS/AREDS2 guidance
- Meta-analysis Macular pigment meta-analysis
- Review Cochrane AMD antioxidant review
How To Read This Rating
The score reflects evidence that the supplement does its stated job. Some jobs are direct, such as strength, endurance, or recovery; others are indirect, such as sleep, mood, appetite, or health support. A real effect can still receive a cautious practical rating when dose, safety, product quality, or audience fit remain uncertain.
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