DOSSIER #011 // tea
Evidence: StrongGreen Tea
Camellia sinensis • Sencha • Gyokuro • Leaf tea
COMPOUND PROFILE Catechins, L-theanine, caffeine
THE 30-SECOND VERDICT
Caffeine and catechin chemistry are well mapped. “Metabolism miracle” copy is not.
Green tea is unoxidized Camellia sinensis. Matcha is the powder of shaded leaves; sencha is steeped leaf.
WHAT PEOPLE USE IT FOR
- ✓ Lower-caffeine mornings
- ✓ Afternoon tea
WHAT THE EVIDENCE ACTUALLY PROVES
- ● Caffeine content varies widely by steep time.
- ✕ Extracts are not the same as a cup of tea.
REGULATORY JURISDICTION BLUEPRINT
🇪🇺 EUROPEAN UNION (EFSA) Authorized food / supplement depending on form
Conventional food. Isolated catechin supplements may follow novel-food or additive rules.
🇺🇸 UNITED STATES (FDA / DSHEA) Dietary supplement
Conventional food; extracts may be supplements.
Forms
Loose leafBagsExtracts
Sources
- EFSA caffeine safety scientific opinion (2015)
Last reviewed 2026-08-12 · Lab desk