Walnut oils have significant astringent properties. Walnut oil has a rich, nutty flavor that helps bring aroma and flavor to the food. This flavor gives a pleasant taste, but only when the walnut oil is used in moderation. It is used as a carrier/base oil in various therapies like aromatherapy, massage therapy, as well as in the cosmetic and pharmaceutical industry. Walnut oils are terrific as dressings on chicken, turkey, salads, pasta, fish and steaks. The uses of walnut oils in dessert recipes help bring a nutty flavor to the dish. A 35 gram serving of walnut oil provides the same nutritional benefits as 50 grams of walnuts. They also provide significant levels of Vitamins B-1, B-2, and B-3.