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Green tea extract
Green tea extract — mida Euroopa monograafia tegelikult toetab, milleks see ei ole, vorm ja kui kaua on mõeldud kasutada, kõrvaltoimed ja 3 ravimikoostoimes, mis on dokumenteeritud.
See on teabeleht, mitte diagnoos ega retsept. Taimsed tooted on päris farmakoloogia: neil on toime, kõrvaltoimed ja koostoimed ravimitega. Öelge arstile ja apteekrile kõik, mida võtate, sh teed ja toidulisandid, ja ärge kunagi lõpetage ega muutke määratud ravimit millegi siin loetu pärast.
Mis see on
Camellia sinensis (L.) Kuntze — leaf; concentrated catechin extracts
Kohalikud nimed piirkonnas, mida see sait teenindab:roheline tee (ET) · vihreä tee (FI) · зелёный чай (RU).
Grupeeritud siin Kitchen spices with a safety story. Regulatiivne seisund:Drinking tea is a food; concentrated extracts are food supplements with an EFSA safety assessment.
Mida tõendus toetab
Registreeritud näidustus:Marketed for weight loss and metabolism. Neither claim survives review.
The gap between the drink and the capsule is the entire story here. Drinking green tea is not associated with liver harm and is a perfectly ordinary part of a diet. Concentrated green-tea extracts, sold for weight loss and metabolism, are a different exposure altogether: EFSA assessed them and concluded that catechin doses at or above 800 mg of EGCG a day taken as a food supplement have been shown in trials to raise liver transaminases — a marker of liver stress — and that a safe level for supplements could not be established from the available data. Green-tea extract is among the more frequently implicated botanicals in registries of herb-induced liver injury, and taking it on an empty stomach appears to raise absorption and risk. On the weight-loss claim, the effect measured in trials is too small to matter to anyone.
D — Popular claim unsupported, or safety dominates The better trials are negative, or the substance appears in the literature mainly for the harm it has caused.
Milleks see ei ole
Weight loss, and any liver purpose whatsoever — this is one of the botanicals most likely to injure a liver, not support one.
Vorm, tugevus ja kui kaua
Brewed leaf tea (a food), and concentrated catechin extracts in capsules, often combined with caffeine in "fat burner" products.
Kestus.For extracts, the honest answer is that no safe long-term intake has been established.
Sellel lehel ei ole gramme meelega. Taimeosa, ekstraktsioonilahusti ja ravimi-ekstrakti suhe koos määratlevad valmistise, ja ühest võetud number ei kirjelda teist. Põhjendus on sõlmpunktis; teile kehtiv kogus on trükitud pakendil, mida hoiate, ja apteeker loeb selle teiega.
Kõrvaltoimed
From tea, the effects of caffeine. From extracts, liver injury: dark urine, yellow eyes or skin, itching, unusual fatigue, pain under the right ribs. Stop immediately and seek medical care if those appear. Nausea and stomach upset are common, particularly fasted.
Kes peaks seda vältima
Avoid extracts with any liver condition, in pregnancy and while breastfeeding. Anyone taking a supplement with an unexplained rise in liver enzymes should stop it and tell their doctor what they were taking.
Koostoimed ravimitega
| Ravim või aine | Mida kirjeldatakse |
|---|---|
| Anything else that stresses the liver | Stacking a green-tea extract with alcohol or with other substances that stress the liver is the pattern behind many of the reported cases. |
| Iron supplements and iron-rich meals | Tea polyphenols bind non-haem iron and measurably reduce how much iron is absorbed from a meal taken with tea. If you are being treated for iron deficiency, take iron and tea well apart. |
| Anticoagulants and antiplatelets (warfarin, DOACs, aspirin, clopidogrel) | Green tea leaf contains vitamin K, and large changes in intake have been reported to affect warfarin control. As with all the vitamin K foods, steady intake is what matters, not avoidance. |
Vastupidine vaade — alustage ravimist, mitte taimest — on ravimite, toidu ja alkoholi koostoimete teatmikus ning kokkuvõttena iga ürdi kohta sellel saidil.
Toiduna
See on ka köögis, seega toitumisandmed tasuvad olla farmakoloogia kõrval: vaadake toiduantmete lehte kalorite ja toitainete kohta 100 g ja portsjoni kohta. Kulinaarsed kogused ja ravimvalmistised on eri kokkupuuted, ja vahe on tavaliselt kogu ohutuslugu.
Allikad:European Food Safety Authority — scientific opinions on coumarin, green tea catechins and hydroxyanthracene derivatives · LiverTox: Clinical and Research Information on Drug-Induced Liver Injury (NIDDK, National Institutes of Health) · NIH National Center for Complementary and Integrative Health — herb fact sheets· kontrollitud2026-09-06
Korduma kippuvad küsimused
Milleks green tea extract kasutatakse?
Marketed for weight loss and metabolism. Neither claim survives review. The gap between the drink and the capsule is the entire story here. Drinking green tea is not associated with liver harm and is a perfectly ordinary part of a diet. Concentrated green-tea extracts, sold for weight loss and metabolism, are a different exposure altogether: EFSA assessed them and concluded that catechin doses at or above 800 mg of EGCG a day taken as a food supplement have been shown in trials to raise liver transaminases — a marker of liver stress — and that a safe level for supplements could not be established from the available data. Green-tea extract is among the more frequently implicated botanicals in registries of herb-induced liver injury, and taking it on an empty stomach appears to raise absorption and risk. On the weight-loss claim, the effect measured in trials is too small to matter to anyone.
Kas green tea extract toimib?
Hinnatud siin D: The better trials are negative, or the substance appears in the literature mainly for the harm it has caused. Weight loss, and any liver purpose whatsoever — this is one of the botanicals most likely to injure a liver, not support one.
Kui palju green tea extract peaksin võtma?
See teatmik ei trüki grammides, sest need ei kandu eri ekstrakti tugevusega valmististe vahel. Ausalt saab öelda vormi ja kestuse:Brewed leaf tea (a food), and concentrated catechin extracts in capsules, often combined with caffeine in "fat burner" products. For extracts, the honest answer is that no safe long-term intake has been established.
Millised on green tea extract kõrvaltoimed?
From tea, the effects of caffeine. From extracts, liver injury: dark urine, yellow eyes or skin, itching, unusual fatigue, pain under the right ribs. Stop immediately and seek medical care if those appear. Nausea and stomach upset are common, particularly fasted.
Kas green tea extract on koostoimes ravimitega?
Jah — dokumenteeritudLiver load, Iron, Anticoagulants, warfarin. Igaüks on kirjeldatud sellel lehel, lingiga ravimipoolsele teatmikule, kui see on olemas.
Teised jaotiseskitchen spices with a safety story
Cinnamon
Nothing that survives a systematic review. It is a spice with a real safety figure attached.
Garlic
Relief of symptoms of mild circulatory complaints, in traditional-use preparations. Not the treatment of cardiovascular disease.
Nutmeg
Nothing medicinal. It is on this list because it is the kitchen spice that poisons people.
Chilli and cayenne (capsaicin)
Topical relief of muscle and joint pain in low-strength preparations; high-concentration capsaicin patches are licensed medicines for peripheral neuropathic pain.
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