foods rich in kaempferol, a polyphenol plant compound, with structural chemical formula of kaempferol

anticancer antiinflammatory antioxidant arugula blueberry broccoli chemical compound diet dietary disease eat estrogen flavonoid flavonol food formula fruit green health healthy kaempferol kiwi medicinal metastasis mineral natural nutrient nutrition onion organic polyphenol prevent prevention product source spinach supplement variety vegan vegetable vegetarian vitamin