Flaxseed oil contains mainly fat, followed by a small amount of vitamins, proteins, and mineral salts. Modern nutritional science believes that every 100 grams of flaxseed oil contains 3699 kilojoules of energy, 100.0 grams of fat, 9.0 grams of saturated fatty acids, monounsaturated fatty acids 67.8 grams of polyunsaturated fatty acids, 18.4 grams of polyunsaturated fatty acids, vitamin E 0.47 milligrams, vitamin K 9.3 micrograms. Flaxseed oil is particularly rich in fat, which can provide the body with a variety of fatty acids. It contains more unsaturated fatty acids, especially containing essential fatty acids such as linolenic acid. But hyperlipidemia and obesity should not be consumed in excess, so as not to cause a burden on the body. Normal people should be appropriate daily intake of fats and oils, 25-30 grams per day can be, and appropriate exercise, so as not to cause or aggravate the body’s obesity.