Evidence supporting the use of: Lutein
For the body system: Senses

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Synopsis

Source of validity: Scientific
Rating (out of 5): 4

Lutein is a carotenoid antioxidant found in high concentrations in the macula of the human eye. Its primary role in the body is to protect the eyes from damage caused by light-induced oxidative stress. Scientific studies have shown that lutein can filter harmful blue light and neutralize free radicals, thereby helping to maintain healthy vision and protect against age-related macular degeneration (AMD). The Age-Related Eye Disease Study 2 (AREDS2), a large, well-respected clinical trial sponsored by the National Eye Institute, demonstrated that supplementation with lutein and zeaxanthin (another carotenoid) was associated with a reduced risk of progression to advanced AMD in individuals at high risk. Additional research supports lutein’s role in improving visual performance, such as contrast sensitivity and glare recovery. There is also evidence that higher dietary intake and blood levels of lutein are correlated with a lower risk of cataracts. Because of these findings, lutein is commonly used in dietary supplements marketed for eye health and is considered scientifically validated for supporting the senses, particularly vision. However, while the evidence is robust for age-related macular degeneration, lutein's benefits for other sensory functions are less established. Overall, the scientific consensus indicates a meaningful benefit of lutein for ocular health.

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Other body systems supported by lutein

Brain
Eyes
Senses