Green Tea Extractand Focus And Attention.
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
A combination of green tea extract and l-theanine improves memory and attention in subjects with mild cognitive impairment: a double-blind placebo-controlled study.Sang-ki Park · Journal of medicinal food2011Green tea effects on cognition, mood and human brain function: A systematic review.J. Drewe · Phytomedicine : international journal of phytotherapy and phytopharmacology2017The Effects of Green Tea Extract on Working Memory in Healthy WomenYibin Liu · The journal of nutrition, health & aging2017