Zeaxanthin
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Evidence Summary
Zeaxanthin is a carotenoid primarily studied for its role in ocular health, particularly regarding age-related macular degeneration (AMD). Research suggests it may play a role in slowing the progression of certain stages of AMD and is being investigated for its impact on dry eye disease.
Evidence by Condition
Oral lutein and zeaxanthin supplementation may help slow the progression of geographic atrophy in AMD.
Research is investigating the combined effects of lutein, zeaxanthin, and elderberries on dry eye disease and immunity.
Clinical trials have explored the effects of zeaxanthin interventions on visuomotor function.
Effective Doses
Dose ranges were not explicitly provided in the provided study abstracts.
Key Findings
- Oral antioxidant and lutein/zeaxanthin supplements may slow geographic atrophy progression to the fovea in AMD (PMID: 39025435).
- Studies have assessed whether genotypes at CFH or ARMS2 loci modify the effects of lutein and zeaxanthin on AMD progression (PMID: 31358387).
- Research is ongoing into the impact of lutein, zeaxanthin, and elderberry supplementation on dry eye disease and immune function (PMID: 39770987).
Limitations
Much of the current research is focused on specific ocular pathologies like AMD, and there is a lack of evidence regarding broader systemic benefits or optimal dosing for non-eye conditions.
Safety & Interactions
No specific interactions or contraindications were noted in the provided research summaries.
AI-generated summary from 5 peer-reviewed studies. Not medical advice. Always consult a healthcare provider.
Claims vs. Evidence
| Claim Type | % of Products | Evidence Required | Status |
|---|---|---|---|
| All Other | 100% | Tier D (Unclassified) | ✅ Supported |
| Structure/Function | 100% | Tier C (DSHEA Structure/Function (no pre-approval)) | ⚠️ Unsupported |
| Nutrient | 18% | Tier D (Unknown) | ✅ Supported |
Research by Topic
Research Evidence (5)
PURPOSE: To assess whether genotypes at 2 major loci associated with age-related macular degeneration (AMD), complement factor H (CFH), or age-related maculopathy susceptibility 2 (ARMS2), modify the response to oral nutrients for the treatment of AM...
BACKGROUND/OBJECTIVES: Dry eye disease (DED) significantly impairs quality of life, affecting physical, social, and psychological well-being, as well as reducing workplace productivity. While lutein and zeaxanthin supplements have been shown to impro...
PURPOSE: To determine whether oral micronutrient supplementation slows geographic atrophy (GA) progression in age-related macular degeneration (AMD). DESIGN: Post hoc analysis of Age-Related Eye Disease Study (AREDS) and AREDS2, multicenter randomize...
**NCT ID**: NCT02017418 **Phase**: NA **Status**: COMPLETED **Enrollment**: 102 **Completion**: 2014-07
**NCT ID**: NCT00121589 **Phase**: PHASE1 **Status**: COMPLETED **Enrollment**: 40 **Completion**: 2007-08-15
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Frequently Asked Questions
What is Zeaxanthin and what is it used for?
Zeaxanthin is a carotenoid, which is a type of antioxidant, primarily used to support eye health. There is moderate evidence suggesting it may play a role in slowing the progression of certain stages of age-related macular degeneration (AMD).
Does Zeaxanthin help with age-related macular degeneration (AMD)?
There is moderate evidence that oral lutein and zeaxanthin supplementation may help slow the progression of geographic atrophy in AMD. Researchers are also studying how certain genetic factors might influence these benefits.
Can Zeaxanthin help with dry eye disease?
There is currently insufficient evidence to confirm if Zeaxanthin helps with dry eye disease. Ongoing research is investigating the combined effects of lutein, zeaxanthin, and elderberry on dry eye and immune function.
What is the effective dose of Zeaxanthin?
Specific effective dose ranges were not explicitly provided in the current research summaries. You should consult a healthcare professional to determine the appropriate dosage for your needs.
Is Zeaxanthin safe to take and are there any side effects?
No specific safety concerns, contraindications, or upper tolerable limits (UL) were noted in the available research. However, you should always consult a doctor before starting a new supplement regimen.
Are there any drug interactions with Zeaxanthin?
There are currently no documented drug interactions for Zeaxanthin. However, it is important to inform your doctor about all supplements you are taking to ensure they do not interfere with any medications.
Who should avoid taking Zeaxanthin?
The available research does not identify any specific groups of people who should avoid Zeaxanthin. As with any supplement, individuals with underlying health conditions should speak with a medical professional first.
Answers generated from research evidence. Not medical advice.