GradedHealth

Eye health supplements: 60-trial review ranks lutein combinations highest

A 2024 review of 60 eye-supplement trials: lutein with zeaxanthin, often plus omega-3, raised the eye's protective pigment most. Vision gains were smaller.

Published October 2026

Short answer

Lutein and zeaxanthin raise the eye's protective pigment, and the AREDS formula probably slows macular degeneration in people who already have it. Omega-3, vitamin E and berry extracts have not held up for AMD or tired eyes. Evidence grade C (Limited). Network meta-analysis of 60 randomised trials whose outcomes are mostly surrogate eye measurements, plus moderate-certainty Cochrane evidence for AMD progression; downgraded for indirectness, inconsistency in the dry-eye and visual-function results, and low-quality evidence in the anchor review.

Key takeaways

  • A 2024 network meta-analysis of 60 randomised trials found antioxidant supplements raised macular pigment; lutein plus zeaxanthin plus omega-3 ranked highest, but the authors rate most of the evidence low quality [1].
  • For people with intermediate AMD, the AREDS formula probably slows progression to late AMD — about 78 fewer cases per 1,000 over six years in a 2023 Cochrane review [2].
  • AREDS2's 10-year follow-up found lutein/zeaxanthin cut progression to late AMD by 9% and replaced beta-carotene, which nearly doubled lung-cancer risk, mostly in former smokers [3][4].
  • Omega-3 did not slow AMD progression in the same trial [3], and dry-eye results are mixed: Cochrane found little to no symptom relief [5], while a 2026 review saw benefits only for some causes of dry eye [6].
  • What has not held up: vitamin E does not prevent AMD [7], and berry extracts did not clearly ease screen-related eye fatigue in a review of 7 trials [8].

What the study did

A network meta-analysis pools randomised trials of different products and ranks them, even when the products were never compared head to head [1]. The 2024 review examined 60 trials of antioxidant supplements — including lutein and zeaxanthin, omega-3s, vitamins, minerals and mixtures — and used 38 of them to rank eight supplement groups against placebo [1]. The outcomes were eye measurements: macular pigment optical density (the density of the protective pigment at the center of the retina), visual acuity, contrast sensitivity, and photostress recovery time (how quickly vision recovers after a bright flash) [1]. Mean ages in the trials ranged from 19 to 77; 18 trials were in people with age-related macular degeneration (AMD), and doses ran from 2 mg to 20 mg or more a day of lutein or zeaxanthin, for 6 weeks to 4 years [1].

What it found

Every supplement group raised macular pigment compared with placebo [1]. The best-ranked combination was lutein plus zeaxanthin plus omega-3 (ranked first with a 99.3% probability), ahead of lutein plus zeaxanthin alone (68%) [1]. Visual acuity improved with only one combination — an antioxidant mixture with omega-3 and lutein — and photostress recovery improved with lutein plus zeaxanthin; contrast sensitivity improved only at low spatial frequency (coarser patterns) [1]. The authors rated most of the evidence low quality, pointing to differences between studies and signs of publication bias [1]. The review was funded by a university and the authors declared no conflicts of interest [1].

How it fits

For disease outcomes, the best evidence is older and narrower. In people with intermediate AMD, the AREDS formula of vitamins C and E, zinc and beta-carotene (now replaced by lutein/zeaxanthin) probably slows progression to late AMD: about 78 fewer cases per 1,000 over six years (26 to 126 fewer), in a 2023 Cochrane review of 26 trials [2]. AREDS2's 10-year follow-up found lutein/zeaxanthin, which replaced beta-carotene, cut progression to late AMD by 9%; beta-carotene nearly doubled lung-cancer risk, mostly in former smokers [3][4]. A 2025 analysis of the same trials found the supplements slowed geographic atrophy's spread toward the fovea, the retina's center, though the total area of damage did not change [9]. The pigment results match earlier dose-response work: no significant change below 5 mg a day, and a 0.11-unit rise at 20 mg or more [10]. Not everything holds up. Omega-3 capsules did not slow AMD progression in AREDS2 or its 10-year follow-up [4][3]. Vitamin E does not prevent AMD — high-certainty evidence — and may slightly increase the risk of late AMD [7]. For dry eyes, the results are mixed: Cochrane found omega-3 gave little to no symptom relief [5], an earlier meta-analysis of 17 trials found improvement [11], and a 2026 review of 27 trials found benefits only in certain causes of dry eye, such as screen use and contact lens wear, and none in meibomian-gland-related or unspecified dry eye [6]. For screen-related eye fatigue, a 2022 review of computer eye strain found berry extracts did not clearly help across 7 trials [8], though two small bilberry-extract trials reported improvements after screen work [12][13].

Limits

The ranking review's outcomes are eye measurements — pigment density, contrast, recovery time — not proof that vision loss was prevented, and its low-quality rating (indirect comparisons, publication bias) means the small differences between products may not hold up [1]. The lutein/zeaxanthin benefit in AREDS2 was not statistically significant in the original five-year analysis [4] and only became clearer with longer follow-up [3]. The geographic-atrophy finding is a post-hoc analysis of the AREDS and AREDS2 trials [9]. Most trials tested specific products and doses, not whatever a given label claims.

The nuances

Safety: beta-carotene — the nutrient lutein/zeaxanthin replaced — raised lung-cancer risk in people who smoke or used to smoke, and current eye formulas use lutein/zeaxanthin instead [3]. AREDS-style formulas are for people who already have AMD; taken together with a regular multivitamin they can push vitamin A and zinc above their tolerable upper intake levels [14]. In trials, lutein and zeaxanthin have not been linked to serious side effects, though most studies were too small to detect rare harms [2]; the AREDS2 10-year follow-up found no significant rise in lung cancer [3]. A European safety review set an acceptable daily intake of 1 mg per kg of body weight for lutein as a food additive — about 70 mg for a 70 kg adult, well above trial doses [15]. Pregnancy and breastfeeding may lower lutein and zeaxanthin supply for mother and baby [16]; anyone who is pregnant, breastfeeding or taking prescription medicines should ask a doctor before adding supplements.

Go deeper

  • Lutein and Zeaxanthin — Lutein and zeaxanthin supplements raise the eye's protective pigment, and at 20 mg a day or more the rise is clear in pooled trials.
  • Fish Oil — Fish oil rich in EPA eases symptoms of depression in adults, a modest benefit supported by low-certainty evidence.
  • Zinc — Zinc lozenges taken at the start of a cold shorten the illness by roughly two to three days in randomised trials.
  • Blueberries — Blueberries may help memory in older adults with mild memory decline: a meta-analysis of nine trials found better episodic memory (memory for everyday events)…

References

  1. Effect of Antioxidant Supplementation on Macular Pigment Optical Density and Visual Functions: A Systematic Review and Network Meta-Analysis of Randomized Controlled Trials.. Adv Nutr, 2024.
  2. Antioxidant vitamin and mineral supplements for slowing the progression of age-related macular degeneration.. Cochrane Database Syst Rev, 2023.
  3. Long-term Outcomes of Adding Lutein/Zeaxanthin and ω-3 Fatty Acids to the AREDS Supplements on Age-Related Macular Degeneration Progression: AREDS2 Report 28.. JAMA Ophthalmol, 2022.
  4. Lutein + zeaxanthin and omega-3 fatty acids for age-related macular degeneration: the Age-Related Eye Disease Study 2 (AREDS2) randomized clinical trial.. JAMA, 2013.
  5. Omega-3 and omega-6 polyunsaturated fatty acids for dry eye disease.. Cochrane Database Syst Rev, 2019.
  6. The effects of different forms of omega-3 polyunsaturated fatty acids on dry eye disease resulting from various etiologies: a meta-analysis and systematic review.. BMC Ophthalmol, 2026.
  7. Antioxidant vitamin and mineral supplements for preventing age-related macular degeneration.. Cochrane Database Syst Rev, 2017.
  8. Interventions for the Management of Computer Vision Syndrome: A Systematic Review and Meta-analysis.. Ophthalmology, 2022.
  9. Oral Antioxidant and Lutein/Zeaxanthin Supplements Slow Geographic Atrophy Progression to the Fovea in Age-Related Macular Degeneration.. Ophthalmology, 2025.
  10. The Effect of Lutein/Zeaxanthin Intake on Human Macular Pigment Optical Density: A Systematic Review and Meta-Analysis.. Adv Nutr, 2021.
  11. Efficacy of Omega-3 Fatty Acid Supplementation for Treatment of Dry Eye Disease: A Meta-Analysis of Randomized Clinical Trials.. Cornea, 2019.
  12. Bilberry extract supplementation for preventing eye fatigue in video display terminal workers.. J Nutr Health Aging, 2015.
  13. A 12-Week-Long Intake of Bilberry Extract (Vaccinium myrtillus L.) Improved Objective Findings of Ciliary Muscle Contraction of the Eye: A Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Comparison Trial.. Nutrients, 2020.
  14. Dosage considerations in the combined use of ocular-specific vitamins and nutrients and multivitamin products: A systemic review and analysis.. J Am Pharm Assoc (2003), 2019.
  15. Scientific Opinion on the re-evaluation of lutein (E 161b) as a food additive.. EFSA J, 2010.
  16. Potential roles of dietary zeaxanthin and lutein in macular health and function.. Nutr Rev, 2023.