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Types of Green Tea Extract (EGCG): Forms & Bioavailability

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Forms Comparison

FormBioavailabilityBest For
Standardized EGCG ExtractModerateConcentrated catechins without excessive caffeine
Green Tea Extract (with caffeine)ModerateSynergistic formula — caffeine enhances EGCG thermogenic effects
Decaffeinated Green Tea ExtractModerateCaffeine-sensitive individuals — still provides EGCG benefits

Standardized EGCG Extract

Bioavailability: Moderate. Best for: Concentrated catechins without excessive caffeine.

Green Tea Extract (with caffeine)

Bioavailability: Moderate. Best for: Synergistic formula — caffeine enhances EGCG thermogenic effects.

Decaffeinated Green Tea Extract

Bioavailability: Moderate. Best for: Caffeine-sensitive individuals — still provides EGCG benefits.

References

  1. (). Green tea for weight loss and weight maintenance in overweight or obese adults. Cochrane Database of Systematic Reviews. DOI
  2. (). Efficacy of a green tea extract rich in catechin polyphenols and caffeine in increasing 24-h energy expenditure and fat oxidation in humans. American Journal of Clinical Nutrition. DOI