Cold-pressed sesame oil is a good source of vitamin E, containing 11.8 mg of the vitamin for every 100 g of the oil. Vitamin E gives sesame oil its antioxidant property. It also has a high concentration of fatty acids, including polyunsaturated omega-6 fatty acids and monounsaturated omega-9 fatty acids. Other constituents of cold-pressed sesame oil include zinc, copper, magnesium, calcium and iron as well as vitamin B-6. Zinc contributes to healthy bones; copper is good for the management of rheumatoid arthritis; calcium is essential for the prevention of osteoporosis, migraine and colon cancer; and magnesium contributes to respiratory health.