what foods contain the most polyphenols
A study published in the March 2008 issue of The Journal of Nutrition found that dark grapes, bilberries, cherries, apples, dark plums, blackberries and blueberries were all good sources as well. Fruit juices, such as grape juice, contain especially high levels of polyphenols.
Rye and other whole grains found in breads, rolls and cereals contain various levels of polyphenols. Soybeans top the list of beans, while other beans contain minimal to moderate amounts. Peanuts are also listed as a good source of this antioxidant. Several servings of whole grain should be eaten each day, with beans and nuts added several times a week.