Green tea

From MEpedia, a crowd-sourced encyclopedia of ME and CFS science and history
Box of green tea bags

Green tea is a type of tea that is made from Camellia sinensis leaves that have not undergone the same withering and oxidation process used to make oolong teas and black teas.

Some of the extracts of Green tea inhibit the activity of the Murine leukemia virus[1].

Green tea contains epigallocatechin gallate (EGCG) which is a strong antioxidant.

Theory[edit | edit source]

Regular green tea is 99.9% water, provides 1 Calorie per 100 ml serving, is devoid of significant nutrient content (table) and contains phytochemicals, such as polyphenols and caffeine. Polyphenols found in green tea include epigallocatechin gallate (EGCG), epicatechin gallate, epicatechins and flavanols,[citation needed] which have antioxidant, anticarcinogen, anti-inflammatory, and anti-radiation biochemical effects in vitro. Other components include three kinds of flavonoids, known as kaempferol, quercetin, and myricetin.

Evidence[edit | edit source]

Risks and side effects[edit | edit source]

In high doses green tea supplements can cause permanent liver damage in some people.[2] However, EGCG doses <800mg/day have not shown any hepatotoxic effects according to the European Food Safety Authority[3]

Costs and availability[edit | edit source]

It is nutritional supplement so its available without prescription. In Germany a 250mg capsule costs only about 0,14€ (approx. 0.17 US-$).

Research studies[edit | edit source]

  • Therapeutic Effect and Metabolic Mechanism of A Selenium-Polysaccharide from Ziyang Green Tea on Chronic Fatigue Syndrome[4] - (Full text)

It is used in the treatment regime against ME of Ms Voss to prevent the use of Raltegravir

Costs and availability[edit | edit source]

You can drink it as tea but green tea extracts is also available as supplements.

See also[edit | edit source]

Learn more[edit | edit source]

  • Green tea - National Center for Complimentary and Integrative Health
  • Green Tea -

References[edit | edit source]

  1. Polyphenolic antioxidant (–)-epigallocatechin-3-gallate from green tea as a candidate anti-HIV agent
  2. "'The food supplement that ruined my liver'". BBC News. October 25, 2018. Retrieved October 25, 2018.
  3. Younes, Maged; Aggett, Peter; Aguilar, Fernando; Crebelli, Riccardo; Dusemund, Birgit; Filipič, Metka; Frutos, Maria Jose; Galtier, Pierre; Gott, David (2018). "Scientific opinion on the safety of green tea catechins". EFSA Journal. 16 (4): e05239. doi:10.2903/j.efsa.2018.5239. ISSN 1831-4732.
  4. Shao, Changzhuan; Song, Jing; Zhao, Shanguang; Jiang, Hongke; Wang, Baoping; Chi, Aiping (November 15, 2018). "Therapeutic Effect and Metabolic Mechanism of A Selenium-Polysaccharide from Ziyang Green Tea on Chronic Fatigue Syndrome". Polymers. 10 (11): 1269. doi:10.3390/polym10111269. ISSN 2073-4360. PMID 30961194.