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Types of Green Tea Extract: Forms & Bioavailability

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Forms Comparison

FormBioavailabilityBest For
Standardized Extract (50-98% EGCG)ModerateTargeted anti-inflammatory — concentrated EGCG; take with food to reduce hepatotoxicity risk
Decaffeinated ExtractModerateCaffeine-sensitive individuals — retains catechins with minimal caffeine
Matcha PowderModerate-HighWhole-leaf consumption — contains L-theanine that modulates caffeine effects; lower EGCG concentration

Standardized Extract (50-98% EGCG)

Bioavailability: Moderate. Best for: Targeted anti-inflammatory — concentrated EGCG; take with food to reduce hepatotoxicity risk.

Decaffeinated Extract

Bioavailability: Moderate. Best for: Caffeine-sensitive individuals — retains catechins with minimal caffeine.

Matcha Powder

Bioavailability: Moderate-High. Best for: Whole-leaf consumption — contains L-theanine that modulates caffeine effects; lower EGCG concentration.

References

  1. (). The effect of green tea on inflammatory mediators: a systematic review and meta-analysis of randomized clinical trials. Phytotherapy Research. DOI
  2. (). The effect of green tea supplementation on obesity: a systematic review and dose-response meta-analysis of randomized controlled trials. Phytotherapy Research. DOI
  3. (). Scientific opinion on the safety of green tea catechins. EFSA Journal. DOI