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Natural phenols are a class of molecules found in abundance in plants. Many common foods contain rich sources of polyphenols which have antioxidant properties only in test tube studies. As interpreted by the Linus Pauling Institute, dietary polyphenols have little or no direct antioxidant food value following digestion. [7]
Flavonoids, found in citrus fruits, green tea, berries, apples, onions, and cocoa, are known to reduce blood pressure and cholesterol, making them beneficial to the heart and overall health ...
The researchers noted that foods like apples, pears, blueberries, blackberries, grapes and cocoa are considered great sources of flavanols. ... But he recommends not combining bananas with berries ...
Foods with a high flavonoid content include parsley, onions, blueberries and strawberries, black tea, bananas, and citrus fruits. [11] One study found high flavonoid content in buckwheat. [12] Citrus flavonoids include hesperidin (a glycoside of the flavanone hesperetin), quercitrin, rutin (two glycosides of quercetin, and the flavone tangeritin.
Photo: iStock. Design: Eat This, Not That!Antioxidant-rich foods have long been championed by health professionals as crucial components of a healthy diet, backed by thousands of studies ...
Food plants rich in anthocyanins include the blueberry, raspberry, black rice, and black soybean, among many others that are red, blue, purple, or black. Some of the colors of autumn leaves are derived from anthocyanins. [1] [2] Anthocyanins belong to a parent class of molecules called flavonoids synthesized via the phenylpropanoid pathway.
Crowberries score particularly high on the Oxygen Radical Absorbance Capacity (ORAC) test, the primary way that researchers measure antioxidants in food. “A score of 40 is considered very high ...
Proanthocyanidins are a class of polyphenols found in many plants, such as cranberry, blueberry, and grape seeds. Chemically, they are oligomeric flavonoids. Many are oligomers of catechin and epicatechin and their gallic acid esters. More complex polyphenols, having the same polymeric building block, form the group of condensed tannins.