Overview Lutein and zeaxanthin are xanthophyll carotenoids (oxygenated carotenoids) that selectively accumulate in the human macula (the high-acuity central region of the retina), forming the macular pigment optical density (MPOD). They are not synthesized by the human body and must be…
In the full monograph
- What it is, and how it works
- What the evidence shows — randomized trials, observational data, animal studies, graded and cited
- Dose, form, and timing
- What to expect, and how soon
- Who should be careful, and what to check first
- The verdict
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