The AREDS2 Supplement — The NIH Eye Health Formula Most Seniors Have Never Heard Of

⚕️ Supplement Disclosure This article reviews the AREDS2 supplement formula for informational purposes only. AREDS2 supplements are recommended by the National Eye Institute for people with intermediate or advanced age-related macular degeneration (AMD). They do not prevent AMD onset in people without the condition. If you have not been diagnosed with AMD, consult your eye doctor before starting AREDS2 supplements. Current or former smokers should specifically use the AREDS2 formula — not the original AREDS formula — due to lung cancer risk associated with high-dose beta-carotene.

The AREDS2 supplement is the only nutritional supplement formula with a large-scale NIH-funded randomised controlled trial showing it slows the progression of age-related macular degeneration — the leading cause of vision loss in US adults over 60. Despite this, most seniors have never heard of it. It sits in the supplement aisle next to generic ‘eye vitamins’ that have no clinical evidence behind them, carrying no more prominent labelling or explanation.

Age-related macular degeneration (AMD) affects an estimated 11 million Americans and is the most feared age-related health condition after dementia for many adults over 60 — because it specifically threatens central vision, reading ability, facial recognition and independent living. The AREDS2 supplement does not cure or reverse AMD. But for people with intermediate or advanced AMD, it reduces the risk of progression to vision-threatening advanced AMD by approximately 25% — a clinically meaningful effect from a daily supplement that costs under $30 per month.

This guide explains what the formula contains, what the clinical evidence actually shows, who should take it, and which US products deliver the correct AREDS2 formulation at the right doses.

The most important fact: AREDS2 supplements are not for everyone. The NIH clinical evidence applies specifically to people who already have intermediate AMD in one or both eyes. For people without AMD, there is no evidence the formula prevents onset. For people with intermediate AMD, taking the correct AREDS2 formula is one of the highest-impact supplement decisions available — supported by one of the largest and most rigorous nutritional supplement trials ever conducted.

What Is the AREDS2 Formula — Exactly

The original AREDS trial (Age-Related Eye Disease Study), completed in 2001, found that a specific combination of antioxidants and zinc reduced progression from intermediate to advanced AMD by approximately 25%. The AREDS2 trial, completed in 2012 with 4,203 participants aged 50 to 85 across 82 clinical centres, then refined the formula by replacing beta-carotene (which increased lung cancer risk in smokers) with lutein and zeaxanthin — two carotenoids naturally concentrated in the macula.

The current AREDS2 formula recommended by the National Eye Institute:

Ingredient	Amount per day	Role in Eye Health
Lutein	10mg	Carotenoid concentrated in the macula — filters high-energy blue light and acts as antioxidant in retinal tissue
Zeaxanthin	2mg	Works alongside lutein in the macula — together they form the macular pigment that protects photoreceptors
Vitamin C	500mg	Antioxidant — vitamin C is concentrated in the aqueous humour of the eye at levels far above blood plasma
Vitamin E	400 IU	Fat-soluble antioxidant protecting retinal cell membranes from oxidative damage
Zinc (as zinc oxide)	80mg	Essential for vitamin A metabolism in the retina — deficiency accelerates AMD progression
Copper (as cupric oxide)	2mg	Added to prevent zinc-induced copper deficiency — high-dose zinc depletes copper without this balance

⚠️ Smokers and former smokers — critical note The original AREDS formula contained beta-carotene instead of lutein and zeaxanthin. Beta-carotene at high doses doubled lung cancer risk in smokers and former smokers across multiple studies. If you smoke or have ever smoked, use ONLY the AREDS2 formula (with lutein/zeaxanthin) — never the original AREDS formula with beta-carotene. Always check the label before purchasing.

What the Clinical Evidence Actually Shows

The original AREDS trial — the foundation

The original Age-Related Eye Disease Study enrolled 4,757 participants with varying stages of AMD and followed them for a median of 6.3 years. The primary finding: taking the AREDS supplement reduced the risk of progression from intermediate to advanced AMD by approximately 25% in people with intermediate AMD in both eyes or advanced AMD in one eye. This was a landmark finding — no other supplement category has produced a similar result for a major age-related condition in a trial of this scale.

AREDS2 — the refinement that matters for seniors today

The AREDS2 trial enrolled 4,203 participants at 82 clinical centres between 2006 and 2012. Its primary contribution was confirming that replacing beta-carotene with lutein and zeaxanthin maintained the AMD-protective effect while eliminating the lung cancer risk in smokers. The 10-year follow-on data, presented at the ARVO Annual Meeting and published in JAMA Ophthalmology, confirmed the AREDS2 formula remained as effective at 10 years as at 5 years — despite the study population getting progressively older. This long-term durability is unusual for nutritional supplement evidence.

2024 geographic atrophy finding — potential expanded indication

A 2024 post-hoc analysis published in Ophthalmology (reported by the NIH in its September 2024 ODS Update) found that AREDS2 supplements containing antioxidants and lutein/zeaxanthin may slow the progression of geographic atrophy — an advanced form of dry AMD — toward the fovea (the central vision area) by approximately 55% over three years. As the NIH noted, ‘these are exploratory analyses’ and a prospective study is planned to confirm this finding. If confirmed, this would expand the AREDS2 indication beyond intermediate AMD to late-stage dry AMD.

Who Should — and Should Not — Take AREDS2 Supplements

Group	Recommendation
Intermediate AMD — both eyes, or one eye with advanced AMD	Take AREDS2 formula daily — strongest evidence, recommended by NEI
Advanced AMD — one eye only	Take AREDS2 formula — evidence supports slowing fellow eye progression
Early AMD only — small drusen	No evidence of benefit from AREDS2 — discuss with your eye doctor
No AMD — taking as prevention	No clinical evidence supports this use — AREDS2 does not prevent AMD onset
Current or former smoker with AMD	Take AREDS2 formula ONLY — never the original AREDS with beta-carotene
On blood thinners (warfarin)	Consult doctor — high-dose vitamin E at 400 IU may affect anticoagulation
Taking high-dose zinc separately	Check total zinc — AREDS2 contains 80mg zinc daily which is near the 40mg safe upper limit from supplements alone. Inform your doctor.

AREDS2 and Your Multivitamin — The Zinc Overlap Problem

This is the most commonly missed interaction and it matters practically for seniors already taking a multivitamin. The AREDS2 formula contains 80mg of zinc — the original high-dose formulation from the AREDS trial. This is significantly above the 40mg upper tolerable limit recommended for zinc from supplements. If you are also taking a multivitamin containing 11–15mg of zinc (as recommended in our Best Multivitamin for Men Over 60 and Best Multivitamin for Women Over 60 guides), your total daily zinc from AREDS2 plus multivitamin will exceed 90mg.

The AREDS2 low-zinc variant (25mg zinc) is available from several manufacturers and is appropriate for people who also take a zinc-containing multivitamin. Discuss with your eye doctor which zinc level is right for your situation. The AREDS2 formula includes 2mg copper specifically to counterbalance zinc — do not separate these without medical guidance.

5 Best AREDS2 Supplements — US Pricing 2026

1. PreserVision AREDS2 (Walmart / Amazon / Costco) — The Reference Standard

PreserVision is the brand used in the AREDS and AREDS2 clinical trials — it is literally the supplement the research was conducted on. Every other AREDS2 product on the market is modelled after it. Contains the exact NEI-recommended formula: 10mg lutein, 2mg zeaxanthin, 500mg vitamin C, 400 IU vitamin E, 80mg zinc, 2mg copper. Available at Walmart, Amazon and Costco for approximately $22–30 for 120 softgels (~$0.37–0.50 per day).

• Exact AREDS2 trial formula — 10mg lutein, 2mg zeaxanthin, 500mg C, 400 IU E, 80mg zinc, 2mg copper
• Price per day: ~$0.43 (Walmart/Amazon)
• Certification: The original clinical trial formula
• Best for: Anyone with AMD following NEI guidance — this is the validated formula

The 500mg vitamin C in the AREDS2 formula is not arbitrary — vitamin C is concentrated in the aqueous humour of the eye at approximately 20 times blood plasma levels, making it the most antioxidant-active nutrient in the eye. This is one reason adequate vitamin C status matters for eye health beyond just AREDS2 supplementation — see our full guide on Vitamin C for Seniors for the complete picture including collagen synthesis and iron absorption benefits.

2. PreserVision AREDS2 Low Zinc (Amazon) — Best for Multi-Vitamin Users

The same PreserVision formula but with 25mg zinc instead of 80mg — designed for people already taking a zinc-containing multivitamin who want to avoid exceeding the upper tolerable zinc limit. Available on Amazon for approximately $22–28 for 120 softgels (~$0.37–0.47 per day).

• Modified AREDS2 formula — 25mg zinc instead of 80mg
• Price per day: ~$0.42 (Amazon)
• Best for: Seniors already taking a multivitamin containing zinc

3. Bausch + Lomb Ocuvite Eye + Multivitamin (Walmart / Amazon) — Best Combination

Bausch + Lomb is one of the most trusted names in eye health — their Ocuvite line bridges the gap between AREDS2 eye supplementation and general multivitamin coverage. Useful for seniors who want a single product covering both eye health and basic vitamin support. Available at Walmart and Amazon for approximately $18–24 for 50 tablets (~$0.36–0.48 per day).

• Contains lutein, zeaxanthin, zinc and vitamin E alongside multivitamin nutrients
• Price per day: ~$0.42 (Walmart/Amazon)
• Certification: Bausch + Lomb quality standard
• Best for: Seniors who prefer a single supplement covering both eye and general health

4. Nature’s Bounty Eye Health Formula with Lutein (Walmart) — Best Budget AREDS2-Based Option

An AREDS2-modelled formula at Walmart pricing — contains lutein and zeaxanthin alongside vitamin C, E and zinc. Not the exact PreserVision trial formula but follows the AREDS2 nutrient profile at a lower price point. Available at Walmart for approximately $14–20 for 60 softgels (~$0.23–0.33 per day).

• Lutein 20mg, zeaxanthin 1mg, vitamin C 250mg, vitamin E 200 IU, zinc 10mg
• Price per day: ~$0.28 (Walmart — best budget option)
• Note: lower doses than full AREDS2 formula — suitable for prevention support, not AMD management
• Best for: Budget-conscious seniors without diagnosed AMD wanting lutein/zeaxanthin eye support

5. Kirkland Signature Eye Health Formula (Costco) — Best Costco Value

Costco’s own-brand eye health formula contains the full AREDS2 nutrient profile at Costco bulk pricing. Available at Costco for approximately $16–22 for a large supply (~$0.09–0.12 per day).

• Full AREDS2 nutrient profile including lutein, zeaxanthin, vitamins C and E, zinc and copper
• Price per day: ~$0.10 (Costco — extraordinary value)
• Certification: USP quality
• Best for: Costco members wanting the AREDS2 formula at the lowest cost per day

Related Articles

• Vitamin C for Seniors — Beyond Immune Support — The AREDS2 formula contains 500mg vitamin C specifically. See why this dose matters.

• Best Multivitamin for Women Over 60 — if taking AREDS2, check your multivitamin zinc to avoid exceeding safe limits.

• Best Multivitamin for Men Over 60 — same zinc overlap consideration applies for men taking AREDS2.

Frequently Asked Questions

What exactly is the AREDS2 supplement?

The AREDS2 supplement is a specific nutritional formula developed and validated by the National Eye Institute in a clinical trial of 4,203 participants. It contains lutein 10mg, zeaxanthin 2mg, vitamin C 500mg, vitamin E 400 IU, zinc 80mg and copper 2mg. This exact combination reduced the risk of progression from intermediate to advanced AMD by approximately 25% in the clinical trial. Products sold as AREDS2 supplements are formulated to match this exact nutrient profile. PreserVision AREDS2 is the original clinical trial brand.

Should I take AREDS2 if I do not have macular degeneration?

No — the clinical evidence does not support AREDS2 supplementation for people without AMD. The NIH National Eye Institute is explicit that AREDS2 supplements do not prevent AMD onset and showed no benefit in people with early AMD or no AMD. If you do not have diagnosed intermediate or advanced AMD, taking AREDS2 exposes you to high-dose zinc (80mg — above the 40mg upper tolerable limit) without proven benefit. Lutein and zeaxanthin at lower doses are appropriate for general eye health support, but the full AREDS2 formula is specifically for people with existing intermediate AMD.

Can I take AREDS2 if I already take a multivitamin?

Yes, but check your total zinc carefully. The standard AREDS2 formula contains 80mg zinc daily. If your multivitamin adds another 11 to 15mg, your total daily zinc from supplements will exceed 90mg — well above the 40mg upper tolerable limit associated with copper depletion and immune impairment. The AREDS2 low-zinc variant containing 25mg zinc is specifically designed for people who also take a multivitamin. Discuss with your eye doctor and prescribing physician which zinc level is appropriate for your full supplement stack.

For men over 60 already taking a multivitamin, the zinc overlap with AREDS2 is the most important practical consideration — our Best Multivitamin for Men Over 60 guide specifically recommends formulas with 11–15mg zinc, which combined with even the low-zinc 25mg AREDS2 variant keeps total daily zinc within safe range

What is the difference between AREDS and AREDS2?

The original AREDS formula contained beta-carotene, vitamin C, vitamin E and zinc. The AREDS2 formula replaced beta-carotene with lutein and zeaxanthin. This change was made because high-dose beta-carotene supplements were found to double the risk of lung cancer in current and former smokers. Lutein and zeaxanthin provide the same or better AMD protection without the lung cancer risk. For anyone who smokes or has ever smoked, the AREDS2 formula is the only safe option. The underlying AMD-protective evidence is essentially the same for both formulas in non-smokers.

How long do you need to take AREDS2 supplements?

The AREDS2 clinical trial ran for 5 years, with 10-year follow-on data confirming sustained benefit. The National Eye Institute recommends taking AREDS2 supplements continuously once AMD has been diagnosed at the intermediate stage — stopping supplementation would remove the protective benefit. In the 10-year follow-on study, benefits were maintained throughout without diminishing effect, suggesting long-term use is both safe and effective at the AREDS2 formula doses when taken as directed.

The Bottom Line

The AREDS2 supplement is one of the best-evidenced nutritional interventions in all of geriatric medicine — a specific, validated formula tested in 4,203 people over 10 years, showing 25% reduction in AMD progression from intermediate to advanced stages.

It is not for everyone — it is specifically indicated for people with intermediate or advanced AMD on at least one eye. For that population, it is one of the most important supplement decisions available. PreserVision AREDS2 at $0.43/day is the validated original formula. The low-zinc variant is the right choice for anyone already taking a zinc-containing multivitamin.

If you are over 60 and have not had a dilated eye exam recently — the test that detects AMD at the intermediate stage where AREDS2 supplements can help — book one. Early detection of AMD is when supplementation matters most.

References

1. National Eye Institute. Age-Related Eye Disease Studies AREDS and AREDS2 — About AREDS and AREDS2. View on NEI

2. NIH Office of Dietary Supplements Update (September 2024). AREDS2 supplements slow sight loss in late-stage dry AMD — 55% reduction in geographic atrophy progression toward fovea. View NIH ODS Update

3. JAMA / JAMA Ophthalmology. AREDS2 Report 28 — Long-term outcomes at 10 years. doi: 10.1001/jamaophthalmol

4. PubMed. Lutein + zeaxanthin and omega-3 fatty acids for AMD: the AREDS2 randomised clinical trial (4,203 participants). View on PubMed