Of the many nutrients that support healthy vision, carotenoids stand out in the field. In part, this is because they are literally brightly colored. Carotenoids are natural pigments found in plants and algae that fall into the yellow/orange/red spectrum, and they lend their colors to many boldly hued fruits and vegetables.
Research has shown that two carotenoids offer the clearest sight benefits: lutein and zeaxanthin.
Lutein and Zeaxanthin
What Is Lutein?
Lutein is a yellowish-orange natural pigment known as a xanthophyll. This carotenoid compound is found in certain plants, and it's present in the human body, particularly in the retina of the eye. In supplement form, it's most often sourced from marigold flowers.
What Is Zeaxanthin?
Another xanthophyll, zeaxanthin is also an orange-tinted carotenoid contained in some botanical sources, and it's highly concentrated in the tiny area of the retina called the macula. Like lutein, it often appears as marigold flower extract.
Key Takeaways
- Lutein and zeaxanthin are crucial for eye health, acting as powerful antioxidants that support long-term vision.
- These carotenoids play an important role in protecting against age-related macular degeneration (AMD), with research showing considerable benefits.
- Lutein and zeaxanthin help to filter blue light and encourage visual performance, including contrast sensitivity and overall visual acuity.
- Most people don’t get enough of these nutrients through diet alone, making certain foods and high-quality supplements practical ways to promote eye health.
Lutein and Zeaxanthin: Potent Partners
While other carotenoids are well known, including beta-carotene and lycopene, lutein and zeaxanthin are the only carotenoids that accumulate in the human retina and lens, providing protective effects against oxidative stress. (1)
Lutein is more prominent in the peripheral retina, while zeaxanthin is concentrated in the center of the macula (fovea). (2) Because they cover various parts of the eye, their synergy is particularly effective. And together lutein and zeaxanthin are key to central vision, since they both accumulate in the macula lutea, the yellow spot in the retina that’s responsible for sharp sight.
Lutein and Zeaxanthin’s Vision Benefits

While lutein and zeaxanthin are most closely associated with the macula, they are also present in other key parts of the eye, including photoreceptor cells, which convert light to electric signals that allow the brain to form visual images. (3)
Lutein and zeaxanthin are known to filter harmful blue light, which can contribute to digital eye strain, and these carotenoids have antioxidant properties that may protect the eyes from oxidative stress caused by prolonged screen time. (4)
These beneficial qualities extend to other aspects of vision—lutein and zeaxanthin have been shown to improve visual acuity and contrast sensitivity. (5) Additionally, combined with lutein, zeaxanthin has been found to have positive effects on visual performance and may help to prevent diabetic retinopathy. (6)
This carotenoid duo also has broader attributes, playing a crucial role in promoting overall eye health. (5)
Remember: To maintain optimal sight, regular exams with an eye doctor can help to identify potential vision issues early on.
Macular Degeneration

Where lutein and zeaxanthin arguably have their biggest eye-health impact, however, is with their effects on age-related macular degeneration (AMD).
A major cause of vision loss for older adults, age-related macular degeneration affects the retina, particularly the macula, leading to a decline in central vision. (7)
A concentration of dietary carotenoids, macular pigment consists of lutein and zeaxanthin, and macular pigment optical density is a key indicator of eye health. (8)
It’s no surprise then that higher levels of these two carotenoids are associated with optimal macular pigment optical density, and this, in turn, has been shown to protect against age-related macular degeneration. (9)
Scientific Evidence Supporting Lutein and Zeaxanthin
Some of the most substantial research into lutein and zeaxanthin’s vision benefits has been in the Age-Related Eye Disease Study 2 (AREDS2), the follow-up to the original Age-Related Eye Disease Study (AREDS).
Both lutein and zeaxanthin were selected as strong candidates for inclusion in the first AREDS, but they were not commercially available at the time, so another carotenoid, beta-carotene, was chosen instead. (10)
For the second study, beta-carotene was replaced by lutein and zeaxanthin, and AREDS2 found that supplementation with lutein and zeaxanthin reduced the risk of AMD progression by 10 to 25%. (11)
Numerous studies have demonstrated the benefits of lutein and zeaxanthin supplements for eye health beyond its protective effects against age-related macular degeneration.
A randomized clinical trial found that lutein and zeaxanthin supplementation improved visual performance, and a systematic review of 46 studies concluded that increased lutein and zeaxanthin intake led to higher macular pigment optical density. (5, 12)
The scientific evidence supports the use of lutein and zeaxanthin supplements as a safe and effective way to support eye health and prevent age-related vision issues.
More research is needed to fully understand the effects of lutein and zeaxanthin on vision wellness, including age-related macular degeneration.
Other Lutein and Zeaxanthin Health Benefits
Beyond eye health, lutein and zeaxanthin’s antioxidant effects help to protect the body from free radicals and oxidative stress. (13)
These properties also show potential for lutein and zeaxanthin to support skin health, and studies have found that the carotenoids may have beneficial effects on cognitive function. (13, 5)
Lutein and zeaxanthin supplements can be used in conjunction with other nutrients, such as vitamin C and vitamin E, to support overall health.
As with vision wellness, more research will help to discern what other human health benefits zeaxanthin, lutein, and other carotenoids may offer.
Where Can You Find Lutein and Zeaxanthin?

For those who are conscientious of healthy eating, lutein and zeaxanthin are present in certain foods of a nutrient-rich daily routine. Notably, these carotenoids are found in high amounts in leafy green vegetables.
Spinach is one of the best sources of lutein, containing approximately 7,450 mcg per 100 g. (It also has traces amounts of zeaxanthin.) Kale is another excellent source of lutein and zeaxanthin, with high concentrations of these carotenoids. (14)
Egg yolks contain lutein that is highly bioavailable, making them a good source of this carotenoid. Other sources of lutein and zeaxanthin include broccoli, peas, corn, and various fruits such as kiwi and avocados. (14, 15)
Lutein and zeaxanthin are fat-soluble, meaning that consuming them with dietary fat can improve their absorption.
The average American diet contains low amounts of lutein and zeaxanthin, with typical intakes ranging from 1 to 2 mg per day. (16)
Lutein and Zeaxanthin Supplements
Since the average diet is lacking in sufficient carotenoid-rich foods, lutein and zeaxanthin supplements can be a simple and cost-effective way to support eye health and help to prevent vision issues.
Lutein and zeaxanthin supplements are available in various forms, including soft gels and capsules.
When choosing a nutritional supplement, look for a product that contains a significant amount of lutein and zeaxanthin, as well as other dietary carotenoids and beneficial nutrients.
It’s essential to follow the recommended dosage and consult with an eye doctor or healthcare professional before starting any new supplement regimen.
The recommended daily intake of lutein is approximately 10 mg and that of zeaxanthin is 2 mg. (17)
There is currently no recommended dietary allowance (RDA) for lutein or zeaxanthin, but some experts suggest a daily intake of at least 6 mg of lutein for beneficial effects. (18)
An Exceptional Lutein and Zeaxanthin Nutritional Supplement

While there’s no shortage of sight-supportive dietary supplements on the market, high-quality products that feature nutrients found to encourage optimal macular pigment optical density, as well as other vision health benefits, are much tougher to come by.
Performance Lab® Vision combines nature's most standout eye nutrients—the macular pigments lutein and zeaxanthin—with another antioxidant carotenoid, astaxanthin. And to strengthen this eye-health nutritional supplement further, Vision also includes purified extracts of bilberry, blackcurrant, and saffron.
With 10 mg of lutein and 2 mg of zeaxanthin per capsule, Vision contains the AREDS2-recommended levels of these crucial carotenoids, making it an excellent addition to any sight-conscious daily routine.
Final Thoughts
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Lutein and zeaxanthin work best together, forming a targeted defense system within the retina that supports visual performance and long-term eye health.
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Consistent intake matters more than short-term use—through diet (egg yolks, leafy greens, etc.) and/or lutein/zeaxanthin supplements, maintaining steady levels of these carotenoids is key to supporting macular pigment and protecting vision over time.
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They offer one of the most evidence-backed nutritional approaches to age-related macular degeneration, with clinical research like AREDS2 highlighting their role in healthy sight, especially in older adults.
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Modern lifestyles make these nutrients more relevant than ever, given increased exposure to harmful blue light from screens and the prevalence of nutrient-poor diets.
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A combined strategy is most effective: Nutrient-rich foods, high-quality supplements, and regular eye exams all work together to preserve visual health.
References
- Roberts JE, Dennison J. The Photobiology of Lutein and Zeaxanthin in the Eye. J Ophthalmol. 2015;2015:687173.
- Widomska J, SanGiovanni JP, Subczynski WK. Why is Zeaxanthin the Most Concentrated Xanthophyll in the Central Fovea? Nutrients. 2020 May 7;12(5):1333.
- Sommerburg OG, Siems WG, Hurst JS, Lewis JW, Kliger DS, van Kuijk FJ. Lutein and zeaxanthin are associated with photoreceptors in the human retina. Curr Eye Res. 1999 Dec;19(6):491-5.
- Lopresti AL, Smith SJ. The effects of lutein/ zeaxanthin (Lute-gen®) on eye health, eye strain, sleep quality, and attention in high electronic screen users: a randomized, double-blind, placebo-controlled study. Front Nutr. 2025 Feb 3;12:1522302.
- Parekh R, Hammond BR Jr, Chandradhara D. Lutein and Zeaxanthin Supplementation Improves Dynamic Visual and Cognitive Performance in Children: A Randomized, Double-Blind, Parallel, Placebo-Controlled Study. Adv Ther. 2024 Apr;41(4):1496-1511.
- Hu BJ, Hu YN, Lin S, Ma WJ, Li XR. Application of Lutein and Zeaxanthin in nonproliferative diabetic retinopathy. Int J Ophthalmol. 2011;4(3):303-6.
- Age-Related Macular Degeneration. American Academy of Ophthalmology.
- Yuan YX, Wu HY, Yuan WJ, Zhong YL, Xu Z. Macular pigment optical density and measurement technology based on artificial intelligence: a narrative review. Int J Ophthalmol. 2025 Jun 18;18(6):1152-1162.
- Keenan T, Agrón E, Keane P. Oral Antioxidant and Lutein/Zeaxanthin Supplements Slow Geographic Atrophy Progression to the Fovea in Age-Related Macular Degeneration. Ophthalmology. 2024;132:14-29.
- Age-Related Eye Disease Study Research Group. The Age-Related Eye Disease Study (AREDS): design implications. AREDS report no. 1. Control Clin Trials. 1999 Dec;20(6):573-600.
- About AREDS and AREDS2. National Eye Institute.
- Wilson LM, Tharmarajah S, Jia Y, Semba RD, Schaumberg DA, Robinson KA. The Effect of Lutein/Zeaxanthin Intake on Human Macular Pigment Optical Density: A Systematic Review and Meta-Analysis. Adv Nutr. 2021 Dec 1;12(6):2244-2254.
- Roberts RL, Green J, Lewis B. Lutein and zeaxanthin in eye and skin health. Clinics in Dermatology. 2009;27(2):195-201.
- Abdel-Aal el-SM, Akhtar H, Zaheer K, Ali R. Dietary sources of lutein and zeaxanthin carotenoids and their role in eye health. Nutrients. 2013 Apr 9;5(4):1169-85.
- Lutein and Zeaxanthin: Benefits, Dosage and Food Sources. Healthline.
- Ranard KM, Jeon S, Mohn ES, Griffiths JC, Johnson EJ, Erdman JW Jr. Dietary guidance for lutein: consideration for intake recommendations is scientifically supported. Eur J Nutr. 2017 Dec;56(Suppl 3):37-42.
- Mrowicka M, Mrowicki J, Kucharska E, Majsterek I. Lutein and Zeaxanthin and Their Roles in Age-Related Macular Degeneration-Neurodegenerative Disease. Nutrients. 2022 Feb 16;14(4):827.
- Lutein. Macular Disease Foundation.