Research Notes on Green Tea Side Effects
Studies regarding side effects associated with green tea (Camellia sinensis) are limited in scope, yet researchers are aware that some side effects do exist.1 Although there is less caffeine in a glass of green tea as compared to a cup of coffee, drinking several glasses of green tea a day can cause side effects related to the caffeine content such as anxiety, insomnia and an increase in blood pressure.2 Other common side effects include upset stomach, diarrhea and constipation.3
Fast Facts:
- Those who suffer from anemia should limit the intake of green tea as it can block the absorption of iron by the body.4
- Hypertension, seizures, arrhythmia and signs of allergic reaction should be reported to a physician immediately.5
- There have been reports of a possible link between green tea capsules and liver damage, although a link has not been clearly established.5
Top Resources on Green Tea Side Effects
- Cerner Multum (via Drugs.com): Side Effects of Green Tea - For the Consumer
- Mayo Clinic: Green Tea (Camellia sinensis): Safety and Warnings
- eMedTV: Green Tea Side Effects
- First DataBank (via MedicineNet): Green Tea (Camellia sinensis) - Oral: Side Effects
- American Chronicle: Green Tea Side Effects - Important Precautions You Should Be Aware Of (March 14, 2008)
- Arina Nikitina (via Green Tea Secrets): Green Tea Side Effects
- Amazing-Green-Tea.com: Green Tea Side Effects Warnings! Advice to New Drinkers
Research Notes References
- ↑ Mayo Clinic: Green Tea (Camellia sinensis): Safety and Warnings
- ↑ American Chronicle: Green Tea Side Effects - Important Precautions You Should Be Aware Of
- ↑ First DataBank (via MedicineNet): Green Tea (Camellia sinensis) - Oral: Side Effects
- ↑ Amazing-Green-Tea.com: Green Tea Side Effects Warnings! Advice to New Drinkers
- ↑ 5.0 5.1 eMedTV: Green Tea Side Effects
User Recommended Links for Green Tea Side Effects
Are we missing any great links? Please Login or Register to be the first to add to this list of recommended links to help others and improve this WisdomCard.
About this WisdomCard
- Contributor: SScroggins
- Reviewer: Emily Lapkin
- Supervised by: The OrganizedWisdom Physician Review Team
- Last update: Nov. 10, 2008
Each WisdomCard is handcrafted by our team of physician-guided health advocates. Our goal is to make it easy for you to find the most useful health resources for any health topic. In addition to filtering out spam and bad links, WisdomCards highlight tips and warnings, such as:
- Guide Favorite
- Guide Warning
- Scroll down to reach relevant content
- Video
- In Memoriam
Help improve this WisdomCard by suggesting great links.
