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Quercetin

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Quercetin is a secondary plant substance from the group of polyphenols that has antioxidant properties. The natural substance has a yellowish colour and is mainly found in onions, broccoli, apples, grapes, black and green tea. Quercetin is mainly found in the outer layers of the plant. This is why the quercetin content of many foods decreases sharply depending on how they are prepared. For example, most of the quercetin is lost when vegetables are peeled.

Frequently asked questions

Quercetin sollte während der Schwangerschaft und Stillzeit mit Vorsicht verwendet werden, da es bisher keine ausreichenden Studien zur Sicherheit in diesen Lebensphasen gibt. Konsultieren Sie vor der Einnahme in jedem Fall einen Arzt.
Quercetin wird in der Regel gut vertragen. In seltenen Fällen können bei empfindlichen Personen leichte Magen-Darm-Beschwerden wie Übelkeit oder Kopfschmerzen auftreten. Bei einer hohen Dosierung oder langfristigen Einnahme sollte auf mögliche Unverträglichkeiten geachtet werden.
Ja, Quercetin kann die Wirkung bestimmter Medikamente beeinflussen. Insbesondere bei Gerinnungshemmern, bestimmten Antibiotika und Chemotherapeutika kann es zu Wechselwirkungen kommen. Personen, die regelmäßig Medikamente einnehmen, sollten daher vor der Einnahme von Quercetin Rücksprache mit einem Arzt halten.

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