TempoLife › Funkcijas › Herb and spice reference: evidence, dose and interactions › green-tea-extract
Green tea extract
Green tea extract — ko Eiropas monogrāfija patiesībā apstiprina, kam tas nav paredzēts, forma un cik ilgi to paredzēts lietot, blakusparādības un 3 zāļu mijiedarbības, kas tam dokumentēta.
Šī ir uzziņu lapa, nevis diagnoze un nevis recepte. Augu izcelsmes produkti ir īsta farmakoloģija: tiem ir iedarbība, blakusparādības un mijiedarbība ar medikamentiem. Pastāstiet savam ārstam un farmaceitam par visu, ko lietojat, tostarp par tējām un uztura bagātinātājiem, un nekad nepārtrauciet un nemainiet nozīmētu medikamentu tāpēc, ka esat šeit kaut ko izlasījis.
Kas tas ir
Camellia sinensis (L.) Kuntze — leaf; concentrated catechin extracts
Vietējie nosaukumi reģionā, ko apkalpo šī vietne:roheline tee (ET) · vihreä tee (FI) · зелёный чай (RU).
Šeit grupēts sadaļā Kitchen spices with a safety story. Regulējuma nostāja:Drinking tea is a food; concentrated extracts are food supplements with an EFSA safety assessment.
Ko pierādījumi apstiprina
Reģistrētā indikācija: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.
Kam tas nav paredzēts
Weight loss, and any liver purpose whatsoever — this is one of the botanicals most likely to injure a liver, not support one.
Forma, stiprums un cik ilgi
Brewed leaf tea (a food), and concentrated catechin extracts in capsules, often combined with caffeine in "fat burner" products.
Ilgums.For extracts, the honest answer is that no safe long-term intake has been established.
Šajā lapā apzināti nav neviena skaitļa gramos. Auga daļa, ekstrakcijas šķīdinātājs un izejvielas un ekstrakta attiecība kopā nosaka preparātu, un skaitlis, kas ņemts no viena, neapraksta citu. Pamatojums ir izklāstīts centrālajā lapā; jums piemērojamais daudzums ir tas, kas uzdrukāts uz iepakojuma, ko turat rokās, un farmaceits to izlasīs kopā ar jums.
Blakusparādības
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.
Kam no tā jāizvairās
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.
Mijiedarbība ar zālēm
| Medikaments vai viela | Kas ir aprakstīts |
|---|---|
| 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. |
Apgrieztais skatījums — sākt nevis no auga, bet no zālēm — ir atrodams zāļu, pārtikas un alkohola mijiedarbību rokasgrāmata, un apkopots par katru augu šajā vietnē.
Kā pārtika
Šis ir arī virtuvē, tāpēc uzturvērtības rādītājus ir vērts turēt blakus farmakoloģijai: skatiet pārtikas datu lapa par kalorijām un uzturvielām uz 100 g un uz porciju. Kulinārie daudzumi un medicīniskie preparāti ir atšķirīga ekspozīcija, un tieši šī atšķirība parasti ir viss drošības stāsts.
Avoti: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· pārbaudīts2026-09-06
Bieži uzdotie jautājumi
Kam izmanto green tea extract?
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.
Vai green tea extract darbojas?
Novērtēts D šeit: 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.
Cik daudz green tea extract man vajadzētu lietot?
Šajā atsauces materiālā nav norādīti gramu skaitļi, jo tie nav pārnesami starp dažāda ekstrakta stipruma preparātiem. Godīgi var pateikt tikai formu un ilgumu: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.
Kādas ir green tea extract blakusparādības?
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.
Vai green tea extract mijiedarbojas ar medikamentiem?
Jā — dokumentētsLiver load, Iron, Anticoagulants, warfarin. Katrs no tiem ir aprakstīts šajā lapā, ar saiti uz zāļu puses atsauci, kur tāda ir.
Citi:kitchen spices with a safety story
Cinnamon
Nothing that survives a systematic review. It is a spice with a real safety figure attached.
Ķiploks
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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