Green Tea Extractand Brain Fog.
Evidence gradeC
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
Green tea effects on cognition, mood and human brain function: A systematic review.J. Drewe · Phytomedicine : international journal of phytotherapy and phytopharmacology2017The Association Between Green Tea Consumption and Cognitive Function: A Meta-Analysis of Current Evidence.Yu Liu · Neuroepidemiology2025Green Tea Intake and Risks for Dementia, Alzheimer’s Disease, Mild Cognitive Impairment, and Cognitive Impairment: A Systematic ReviewNutrients2019