Plasma lutein and zeaxanthin

1. Lutein + zeaxanthin is associated with plasma lutein and zeaxanthin in humans (Spearman r = 0.29-0.50, P < 0.01).

   “moderate between total intake and plasma L&Z (Spearman r = 0.29-0.50, P < 0.01)”

   Humanstotal intake from diet and supplementsplasman = 369

   Xanthophyll Carotenoid Intake, Plasma Levels, and Retinal Visualization in Aging and Age-Related Macular Degeneration: ALSTAR2

   Investigative ophthalmology & visual science·1 Jul 2026

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1. Plasma lutein and zeaxanthin is associated with macular pigment optical volume in humans (r = 0.41-0.67, P < 0.01).

   “Associations were strong between plasma L&Z and MPOV (r = 0.41-0.67, P < 0.01)”

   Humansadjusted for age and HDL/LDLretinan = 369

   Xanthophyll Carotenoid Intake, Plasma Levels, and Retinal Visualization in Aging and Age-Related Macular Degeneration: ALSTAR2

   Investigative ophthalmology & visual science·1 Jul 2026

More on Macular pigment optical volume