More lutein equals better results
8.0Strong
evidence
evidence
The Claim
There is a belief that taking higher doses of lutein will yield greater health benefits, leading some to consume excessive amounts.
Origin
This misconception may be driven by the 'more is better' mentality often seen in supplement use, as well as aggressive marketing tactics.
What Science Says
Research, including dose-response studies, suggests that there is a threshold beyond which additional lutein intake does not result in further health benefits. Most benefits are observed at moderate intake levels, with little to no additional gains at higher doses.
Verdict
Partially True
Sources
- PMID:28973076 Effect of Dietary Supplementation With Lutein, Zeaxanthin, and ω-3 on Macular Pigment: A Randomized Clinical Trial.
- PMID:27426932 Serum and retinal responses to three different doses of macular carotenoids over 12 weeks of supplementation.
- PMID:32088804 Combination of Lutein and Zeaxanthin, and DHA Regulated Polyunsaturated Fatty Acid Oxidation in H<sub>2</sub>O<sub>2</sub>-Stressed Retinal Cells.