The Claim
Supplementation with lutein and/or zeaxanthin is associated with a marginal improvement in red-green color discrimination sensitivity in healthy adult trichromats with elevated macular pigment optical density.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In healthy adults with high levels of macular pigment, taking lutein and zeaxanthin supplements is linked to a small increase in the ability to distinguish between red and green colors.
See the scientific wording
Supplementation with lutein and/or zeaxanthin is associated with a marginal improvement in red-green color discrimination sensitivity in healthy adult trichromats with elevated macular pigment optical density.
Lutein and zeaxanthin build up in the center of the eye, where they block blue light before it hits the color-sensing cells. This changes how much the red- and green-sensing cells are activated compared to the blue-sensing cells, making it easier to tell subtle differences between red and green shades.
What the research says
1 studyPeople who took lutein and zeaxanthin supplements got a tiny bit better at telling red and green shades apart, even though their ability to tell blue and yellow apart didn’t change.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.