Studies

CellWell record HH-18171

Supplementation with lutein and zeaxanthin increases macular pigment optical density and cognitive performance in healthy teenagers in a randomized, double-blind, placebo-controlled trial

Lopresti AL, Smith SJ.

Nutrition research (New York, N.Y.) ยท 2026

In plain language

In a 6-month randomized trial, lutein and zeaxanthin supplementation raised macular pigment density and improved some cognitive-performance measures in healthy teenagers, though self-reported attention and sleep did not change.

Evidence
Emerging
Design
Randomized controlled trial
Studied in
Human

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