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ingestible · for digital eye strain

Lutein + Zeaxanthin (macular carotenoids)

Reviewed by the Nimbera editorial team · Last updated May 2026

Stringham, Stringham & O'Brien (2017, Foods, PMID 28661438) conducted a 6-month placebo-controlled trial (n=48 adults with 6+ hours daily screen exposure). Daily supplementation with 24 mg macular carotenoids significantly improved contrast sensitivity, critical flicker fusion, disability glare, photostress recovery, and reduced headache frequency and eye strain/fatigue (all p<0.05).$20-$40 per month for quality combined supplements.

How to use

Take 10-20 mg of lutein combined with 2 mg zeaxanthin daily with a fat-containing meal. Full benefit typically requires 3-6 months of consistent use. Spinach, kale, and egg yolks are also rich dietary sources.

How it works

Lutein and zeaxanthin concentrate in the macula, forming macular pigment that filters short-wavelength (blue) light before it reaches the photoreceptors. This acts as an internal optical filter, reducing photochemical stress and glare discomfort from screens.

Where to buy

Health food stores and pharmacies. FloraGLO lutein and OmniXan zeaxanthin are clinically studied forms to look for on labels.

Typical cost: $20-$40 per month for quality combined supplements.

Safety notes

Generally considered safe at recommended doses. Very high lutein intake may cause carotenodermia (harmless yellowing of skin). Those with macular degeneration should consult an ophthalmologist about targeted AREDS2 formulations instead.

Drug & supplement interactions

  • Always tell your doctor or pharmacist about any supplements you take.
  • Interactions can occur with prescription medications, blood thinners, and immunosuppressants.
  • Herbal remedies can affect how the body absorbs or metabolises drugs.
  • Check drugs.com interactions checker before starting.

Clinical source

Stringham JM, Stringham NT & O'Brien KJ, Macular Carotenoid Supplementation Improves Visual Performance, Sleep Quality, and Adverse Physical Symptoms in Those with High Screen Time Exposure, Foods, 2017

This information is compiled from primary clinical literature and is for informational purposes only. It is not a substitute for professional medical advice. Read our full disclaimer.