Green tea benefits
Green tea facts:
| Type | Tea |
|---|---|
| Country of origin | China |
| Region of origin | East Asia |
| Colour | Green |
| Ingredients | Tea leaves |
| Related products | Tea |
Tea consumption has its legendary origins in China during the reign of mythological Emperor Shennong.
A book written by Lu Yu in 618–907 AD (Tang dynasty),The Classic of Tea (simplified Chinese:茶经; traditional Chinese: 茶 經; pinyin: chájīng), is considered important in green tea history. The Kissa Yōjōki (喫茶養生記 Book of Tea, lit. Record [of] Drinking Tea [for] Nourishing Life), written by Zen priest Eisai in 1211, describes how drinking green tea may affect five vital organs, the shapes of tea plants, flowers and leaves, and how to grow and process tea leaves.
Cancer
It has been suggested that it may inhibit cancer development and growth by preventing "cell damage" based on its antioxidant and anti-inflammatory properties.
However, Green tea interferes with the chemotherapydrugbortezomib (Velcade) and other boronic acid-based proteasome inhibitors, and should be avoided by people taking these medications.
Glycemic control
Green tea consumption lowers fasting blood sugar but in clinical studies the beverage's effect on haemoglobin A1c and fasting insulin levels was inconsistent. Inflammation
A 2015 systematic review and meta-analysis of 11 randomized controlled trials found that green tea consumption was not significantly associated with lower plasma levels of C-reactive protein levels (a marker of inflammation).
Glycemic control
Green tea consumption lowers fasting blood sugar but in clinical studies the beverage's effect on haemoglobin A1c and fasting insulin levels Potential for liver toxicity
Excessive consumption of green tea extract has been associated with hepatotoxicity and liver failure. In 2018, a scientific panel for the European Food Safety Authority reviewed the safety of green tea consumption over a low-moderate range of daily EGCG intake from 90 to 300 mg per day, and with exposure from high green tea consumption estimated to supply up to 866 mg EGCG per day.Dietary supplements containing EGCG may supply up to 1000 mg EGCG and other catechins per day. The panel concluded that EGCG and other catechins from green tea in low-moderate daily amounts are generally regarded as safe, but in some cases of excessive consumption of green tea or use of high-EGCG supplements, liver toxicity may occur.

