Zeaxanthin

Xanthophyll carotenoid, supplement marketed for retinal blue-light protection

ATC code: A11JA-ZEAXANTHIN (Zeaxanthin (isolated carotenoid))

Brand names – supplements

EyePromise Restore, MacuShield Original, NOW Zeaxanthin with Lutein, Doctor's Best Zeaxanthin with Lutein

Supplements are not tested in clinical trials and are not registered as medications.

Mechanism of action

Zeaxanthin is a yellow-orange xanthophyll, a stereoisomer of lutein. It concentrates in the foveal centre more than lutein and forms the core of the macular pigment. It absorbs blue light at 450–470 nm and quenches free radicals in photoreceptors. Dietary sources: corn, orange peppers, saffron, egg yolks and kale. Bioavailability rises with fat. in 2013 rejected the eye-protection health claim for zeaxanthin due to insufficient cause-and-effect substantiation.

Indications

Age-related macular degeneration

Adjunct

Zeaxanthin 2 mg is part of the formula together with lutein 10 mg, vitamins C and E, zinc and copper. The AREDS2 RCT (NEI, 2013) in 4203 patients with intermediate or late AMD in one eye showed an 18% reduction in progression to late AMD with low baseline dietary carotenoid intake. The benefit persisted at 10-year follow-up. PPP 2024 and Spanish SERV recommend the AREDS2 formula with lutein and zeaxanthin for intermediate AMD or late AMD in one eye. In healthy people and early AMD stand-alone zeaxanthin does not prevent disease onset. If zeaxanthin is part of a product prescribed by an ophthalmologist with a documented AMD diagnosis, the supplement is justified. If it was recommended without an eye exam, consider seeking a second opinion.

Sources

Marketing claims without evidence base

The drug is promoted for these uses outside international guidelines. Each entry below is analyzed against AEMPS, FDA, EMA, Cochrane and major RCTs.

Vision supplements (marketing category)

Not recommended

Zeaxanthin is a xanthophyll carotenoid that accumulates in the macula of the retina. It is marketed in "eye health" supplements for sharper vision, eye fatigue, and prevention in healthy people. No convincing benefit has been shown for zeaxanthin in this general use, and the "vision vitamins" category lacks an evidence base. Carotenoids have mainly been studied in people who already have age-related macular degeneration at specific stages, not for improving vision in general, so if your eyes bother you it makes more sense to discuss the cause with an ophthalmologist.

Sources

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Safety

Contraindications

Known hypersensitivity to zeaxanthin
Severe allergy to Asteraceae pollen – theoretical cross-reactivity risk

Serious adverse effects

Rare cases of crystalline maculopathy with lutein+zeaxanthin doses above 60 mg/day for many months – reversible after discontinuation

Common adverse effects

Yellowish skin discolouration (carotenodermia) with prolonged high doses
Minimal epigastric discomfort

PregnancyFDA N

Zeaxanthin at dietary intake is safe in pregnancy. Supplement doses above dietary level (2–10 mg/day) are not studied in pregnancy RCTs. EFSA has set no zeaxanthin requirement for pregnant women. AESAN classifies the product as a complemento alimenticio without therapeutic indication. Supplementation in pregnancy is not justified; corn, orange peppers and egg yolks cover needs.

Breastfeeding

Zeaxanthin passes into human milk in small amounts. Stand-alone zeaxanthin supplements during lactation are not studied in nursing RCTs and are not justified.

Calculate RID

Reference information, not a clinical decision. Discuss feeding pauses or changes with your physician or an IBCLC.

Frequently asked

What is Zeaxanthin used for?

Zeaxanthin is evaluated for the following indications with varying evidence strength: Age-related macular degeneration (evidence tier B), Vision supplements (marketing category) (evidence tier D). See the full indication matrix with dosing and citations above on this page.

What are the side effects of Zeaxanthin?

Common side effects of Zeaxanthin (≥ 1 in 100): Yellowish skin discolouration (carotenodermia) with prolonged high doses, Minimal epigastric discomfort. See the Safety section for uncommon and serious reactions.

Is Zeaxanthin safe during pregnancy?

FDA category N. Zeaxanthin at dietary intake is safe in pregnancy. Supplement doses above dietary level (2–10 mg/day) are not studied in pregnancy RCTs. EFSA has set no zeaxanthin requirement for pregnant women. AESAN classifies the product as a complemento alimenticio without therapeutic indication. Supplementation in pregnancy is not justified; corn, orange peppers and egg yolks cover needs.

Is Zeaxanthin compatible with breastfeeding?

Zeaxanthin passes into human milk in small amounts. Stand-alone zeaxanthin supplements during lactation are not studied in nursing RCTs and are not justified.

Who should not take Zeaxanthin?

Zeaxanthin is contraindicated in: Known hypersensitivity to zeaxanthin; Severe allergy to Asteraceae pollen – theoretical cross-reactivity risk. Full list in the Safety section.

Mechanism of action

Indications

Age-related macular degeneration

Adjunct

Sources

Safety

Contraindications

Known hypersensitivity to zeaxanthin
Severe allergy to Asteraceae pollen – theoretical cross-reactivity risk

Serious adverse effects

Rare cases of crystalline maculopathy with lutein+zeaxanthin doses above 60 mg/day for many months – reversible after discontinuation

Common adverse effects

Yellowish skin discolouration (carotenodermia) with prolonged high doses
Minimal epigastric discomfort

PregnancyFDA N

Breastfeeding

Zeaxanthin passes into human milk in small amounts. Stand-alone zeaxanthin supplements during lactation are not studied in nursing RCTs and are not justified.

Calculate RID

Reference information, not a clinical decision. Discuss feeding pauses or changes with your physician or an IBCLC.

Frequently asked

What is Zeaxanthin used for?

What are the side effects of Zeaxanthin?

Is Zeaxanthin safe during pregnancy?

Is Zeaxanthin compatible with breastfeeding?

Zeaxanthin passes into human milk in small amounts. Stand-alone zeaxanthin supplements during lactation are not studied in nursing RCTs and are not justified.

Who should not take Zeaxanthin?

Zeaxanthin is contraindicated in: Known hypersensitivity to zeaxanthin; Severe allergy to Asteraceae pollen – theoretical cross-reactivity risk. Full list in the Safety section.