As a housewife, I will ensure that my family eat healthy oil. Olive oil is often used in cold dishes and stir-fried vegetables in my home. Olive oil is known as "liquid gold" in the West. It is rich in monounsaturated fatty acids-oleic acid, as well as vitamin A, vitamin B, vitamin D, vitamin E, vitamin K and antioxidants. Olive oil is considered to be the most suitable for human nutrition among the fats and oils found so far. The outstanding feature of olive oil is that it contains a lot of monounsaturated fatty acids. Monounsaturated fatty acids can not only supply human body heat, but also adjust the ratio of high-density lipoprotein cholesterol to low-density lipoprotein cholesterol in human plasma. Olive oil has anti-cancer and beneficial effects.