Edible oils are a major source of class energy. In daily life, fats and oils are inseparable ingredients for home cooking and food industry processing. The sources of edible fats and oils are usually plant-based and animal-based. A variety of plant seeds such as peanuts, soybeans, sesame, sunflower seeds, tropical fruit coconut, olive, etc. can be used as raw materials for vegetable fats and oils, while animal sources of fats and oils are often lard, butter, lamb oil, fish oil, etc.. Oil and fat is one of the indispensable food components, has important nutritional significance. Its main role includes: 1, to provide energy; 2, to provide essential fatty acids; 3, to provide and help the absorption of fat-soluble vitamins, fats and oils are a variety of fat-soluble vitamins (vitamin D, E and K) carrier; 4, constitute the body fat and cell biofilm structure. The Chinese Nutrition Association recommends: 20~25 grams of fats and oils per person per day, 600~750 grams per month (1 catty 2 taels to 1 and a half catties), while the actual intake of the current national average more than double. The reasons for this: First, people are cooking with increasingly large oil pots, it is difficult to control the amount of oil. Many families are using 10 pounds of oil buckets directly to the vegetable pot dumped. Second, many friends did not peanuts, melon seeds, pistachios, sesame seeds, etc. as cooking oil, but as snacks inadvertently excessive intake.