Tea (Camellia sinensis) is most often used for Healthy Aging & Longevity. The Examine Database covers Cognitive Improvement.

Tea (Camellia sinensis)

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•Last Updated: October 13, 2024

Tea is both the common name of Camellia sinensis and the name of an infusion made with the leaves of this plant. Green tea is unfermented; black tea is fermented; oolong tea is partially fermented.

4,050 participants in trials and 2 meta-analyses

Examine Evidence Grades

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Last Updated:October 13, 2024

4,050 participants in trials and 2 meta-analyses

Examine Evidence Grades

Examine Database: Tea (Camellia sinensis)

Show Conditions

Cognitive Improvement

2 Outcomes

1 Study

Cognitive Improvement

Research FeedRead all studies

Caffeine plus theanine for cognition

In this meta-analysis of 9 randomized controlled trials, supplementing with caffeine and theanine improved some measures of cognition.

Does tea consumption during pregnancy help infant development?

Is coffee or tea associated with osteoporosis risk?

Is drinking tea associated with better bone health in older women?

Associations between diet and rheumatoid arthritis risk

Research Breakdown

Examine Database References

Reaction Time - Payne ER, Aceves-Martins M, Dubost J, Greyling A, de Roos BEffects of Tea (Camellia sinensis) or its Bioactive Compounds l-Theanine or l-Theanine plus Caffeine on Cognition, Sleep, and Mood in Healthy Participants: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.Nutr Rev.(2025 May 2)