Walnut oil has a wonderfully fine nutty flavor. However, it has a limited shelf life, even in the refrigerator. Therefore, only buy in small quantities and pay attention to the expiration date.
Walnut oil is high in ellagic acid. An antioxidant, which is hoped to undermine the growth of cancer cells. The also contained saponins, are supposed to strengthen our immune system and make us less susceptible to infectious diseases. Walnut oil is also a rich source of vitamin E and omega-3 fatty acid.
Metabolic Balance Blog 