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{{Cleanup|reason=Contains information pasted from elsewhere, rephrase and add citations.}} [[File:Green tea box.jpg|alt=Box of green tea bags|thumb|400x400px]] 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<ref>[https://journals.lww.com/aidsonline/fulltext/2002/04120/polyphenolic_antioxidant.20.aspx Polyphenolic antioxidant (–)-epigallocatechin-3-gallate from green tea as a candidate anti-HIV agent]</ref>. Green tea contains [[Epigallocatechin gallate|epigallocatechin gallate (EGCG)]] which is a strong [[antioxidant]]. ==Theory== 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== ==Risks and side effects== In high doses green tea supplements can cause permanent liver damage in some people.<ref>{{Cite news | url = https://www.bbc.com/news/stories-45971416 | title = 'The food supplement that ruined my liver' | date = 2018-10-25|work=BBC News|access-date=2018-10-25|language=en-GB}}</ref> However, EGCG doses <800mg/day have not shown any hepatotoxic effects according to the European Food Safety Authority<ref>{{Cite journal | last = Younes | first = Maged | last2 = Aggett | first2 = Peter | last3 = Aguilar | first3 = Fernando | last4 = Crebelli | first4 = Riccardo | last5 = Dusemund | first5 = Birgit | last6 = Filipič | first6 = Metka | last7 = Frutos | first7 = Maria Jose | last8 = Galtier | first8 = Pierre | last9 = Gott | first9 = David | date = 2018 | title = Scientific opinion on the safety of green tea catechins| url = https://efsa.onlinelibrary.wiley.com/doi/abs/10.2903/j.efsa.2018.5239|journal=EFSA Journal|language=en|volume=16|issue=4| pages = e05239|doi=10.2903/j.efsa.2018.5239|issn=1831-4732}}</ref> ==Costs and availability== 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 == * Therapeutic Effect and Metabolic Mechanism of A Selenium-Polysaccharide from ''Ziyang'' Green Tea on Chronic Fatigue Syndrome<ref>{{Cite journal | last = Shao | first = Changzhuan | authorlink = | last2 = Song | first2 = Jing | authorlink2 = | last3 = Zhao | first3 = Shanguang | authorlink3 = | last4 = Jiang | first4 = Hongke | authorlink4 = | last5 = Wang | first5 = Baoping | authorlink5 = | last6 = Chi | first6 = Aiping | date = 2018-11-15 | title = Therapeutic Effect and Metabolic Mechanism of A Selenium-Polysaccharide from Ziyang Green Tea on Chronic Fatigue Syndrome| url = http://www.mdpi.com/2073-4360/10/11/1269|journal=Polymers|language=en|volume=10|issue=11 | pages = 1269|doi=10.3390/polym10111269|issn=2073-4360|pmc=|pmid=30961194|quote=|via=}}</ref> - [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6401680/ (Full text)] It is used in the treatment regime against ME of Ms Voss to prevent the use of [[Raltegravir]] *[http://meversuscfs.blogspot.com/2018/06/arztanfragen-mein-therapieregime-fur.html My antiretroviral Regime for Antiretroviral Treatment of Myalgic Encephalomyelitis (Deutsch: #Arztanfragen - Mein Therapieregime für die antiretrovirale Behandlung bei Myalgischer Enzephalomyelitis)] *[https://www.bbc.co.uk/news/stories-45971416 The health supplement that ruined my liver] ==Costs and availability == You can drink it as tea but green tea extracts is also available as supplements. ==See also== * [[Epigallocatechin gallate]] (EGCG) * [[:Category:Supplements|Supplements]] * [[Antioxidant]] ==Learn more== *[https://www.nccih.nih.gov/health/green-tea Green tea] - National Center for Complimentary and Integrative Health *[https://www.drugs.com/mtm/green-tea.html Green Tea] - drugs.com ==References== {{Reflist}} [[Category:Potential treatments]] [[Category:Medicinal foods]] [[Category:Supplements]] [[Category:Herbs]] [[Category:Flavonoids]] [[Category:Depression alternative treatments]]
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