Evidence gradeB
ImpactSmall
Confidencemedium
Imported rating. This grade comes from SuppCo and has not been independently reviewed. It describes research, not a product, and it is not medical advice.
The rating
- Direction
- Favourable
- Rated by
- SuppCo
- Observed
- 28 September 2026
Studies behind it
Lutein across the Lifespan: From Childhood Cognitive Performance to the Aging Eye and BrainJ. Stringham · Current Developments in Nutrition2019Lutein and Zeaxanthin Influence Brain Function in Older Adults: A Randomized Controlled TrialC. Lindbergh · Journal of the International Neuropsychological Society2017Lutein Has a Positive Impact on Brain Health in Healthy Older Adults: A Systematic Review of Randomized Controlled Trials and Cohort StudiesAyano Yagi · Nutrients2021