Lutein is a carotenoid antioxidant that protects the eyes by filtering blue light and reducing oxidative stress, potentially preventing age-related macular degeneration and cataracts.
Lutein is a naturally occurring carotenoid found in high concentrations in the macula of the eye. It acts as an antioxidant and blue light filter, protecting the eyes from damage caused by oxidative stress and high-energy light. Lutein is also found in various fruits, vegetables, and marigolds and can be obtained through diet or supplementation. It's believed to play a role in preventing age-related macular degeneration (AMD) and cataracts.
Key Information
Inside Body Harmful Score
Common Dosage
10-20mg daily
Source Type
Natural
Production Process
Lutein is commercially produced through extraction from marigold flowers (Tagetes erecta). The flowers are dried, ground, and then extracted using solvents. The extract is then purified and crystallized to obtain the final lutein product.
Use Type
Inside BodyClassification & Quality
Dietary Category
Herbs & Botanicals
The type of dietary ingredient this is
Primary Category
Lutein
Efficacy Tier
Tier 2: Moderate/Standard
Reliable forms that work well but require minor 1-2 step conversions. Good balance of cost and effectiveness.
Lutein is absorbed from the gut, but requires incorporation into chylomicrons for transport. It has moderate bioavailability.
Conversion Steps
1
Minor conversion needed
Number of metabolic steps the body needs to convert this ingredient into its usable form
Potential Benefits
Vision Health focuses on maintaining and improving eyesight through nutrition, regular eye exams, and protection from UV radiation. It supports visual acuity, protects against eye diseases, reduces eye strain, and enhances night vision.
Lutein and zeaxanthin protect the macula from oxidative damage and blue light, potentially reducing the risk of AMD progression and improving visual function in some individuals with existing AMD.
Lutein and zeaxanthin, acting as antioxidants, may protect the eye's lens from oxidative damage and filter blue light, potentially lowering the risk of cataracts. Higher intake through diet or supplements is suggested to increase their concentration in the eye.
Possible Side Effects
Skin may turn yellow at high doses due to zeaxanthin accumulation.
Scientific Evidence
Numerous studies support lutein's role in eye health, particularly in reducing the risk of AMD and cataracts. Research indicates that higher macular pigment optical density (MPOD), which is correlated with lutein levels, is associated with better visual function and reduced risk of eye diseases. Evidence level: 4
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