Controlling for sugar and ascorbic acid, a mixture of flavonoids matching navel oranges significantly increases human postprandial serum antioxidant capacity.

Fruit and vegetable consumption reduces the risk for cardiovascular disease development. The postprandial state is an important contributor to chronic disease development. Orange flavonoids may reduce postprandial oxidation.

Synergistic and antagonistic interactions of phenolic compounds found in navel oranges.

Phenolic compounds are known to have antioxidant and antimicrobial properties. These properties may be useful in the preservation of foods or beverages. The interactive antioxidant capacity of phenolic compounds within foods has not been well explored.