Quercetin

Three whole red onions, a common food source of quercetin

Quercetin is the most common flavonoid in the human diet, the yellow pigment behind onion skins and apple peels. Here’s how naturopaths use it, the traditional herbs that are rich in it, and what the research shows.

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The full guide, with how to use it and the safety notes, is in the Remedies Vault.

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