Green tea
Camellia sinensis, family Theaceae. Part discussed: Leaf.
Identity
- Common name
- Green tea
- Botanical name
- Camellia sinensis
- Family
- Theaceae
- Part or material
- Leaf
- Classification
- Botanical
- Educational category
- Foundational Botanicals
About
Camellia sinensis, Theaceae, leaf. Green, black and oolong teas derive from the same species with different processing.
Forms and distinctions
The beverage and the concentrated extract are materially different preparations; extract supplements are also sold in capsules and used in some skin products.
Safety considerations
Adult beverage use has not raised the same safety concerns as concentrated extracts; green tea contains caffeine; extract supplements may cause gastrointestinal effects and increased blood pressure; uncommon liver injury has been reported, primarily with extract products in tablet or capsule form; high doses of green tea extract can reduce nadolol levels and effectiveness, can reduce atorvastatin levels, and may interact with raloxifene and other medicines; pregnancy and breastfeeding discussion concerns caffeine exposure.
References
- NCCIH · US National Center for Complementary and Integrative Health
- NCCIH · US National Center for Complementary and Integrative Health
This entry is educational. It is not medical advice, not a diagnosis, and not a statement about any Pam Oh Herbs Collection or its contents. It carries no dosage and no claim of effect.