Fruit quality, antioxidant capacity, and flavonoid content of organically and conventionally grown blueberries. (whfoods.org)
Dark Chocolate, like the one used in these skin healthy truffles, have the highest flavonoid content which protects your skin from damage by free radicals. (wholesomelicious.com)
Among 500 foods and beverages listed in the USDA database, green tea leaves rank # 1 in flavonoid content with its catechins, with cacao beans being the second. (encha.com)