Quercetin is an antioxidant and belongs to the flavonoids. This substance is present in garlic, capers, cabbages, berries, grapes, green beans, tea, (red) onion and apple.
Quercetin highest quality and purity of 95% pure extracted from Sophora japonica, in vegetarian capsules.
A varied, balanced diet and a healthy lifestyle are important. Food supplements are not a substitute for a varied diet.