How can the elderly eat oil to be healthy?

In the cooking habit of frying in China, almost no dish is without oil, and cooking oil is a necessity for everyone. But if used improperly, it will endanger your health over time. When cooking, be sure to "hot pot cold oil". High temperature oil will not only destroy the nutrients of food, but also produce peroxides and carcinogens. Therefore, the scientific method should be to heat the pot first, then pour the oil, stir-fry the ingredients in the pot and cook them quickly, which can reduce the nutrient loss of vegetables and make the fried dishes healthier. It is important to control the amount of oil for different people. People with normal blood lipids and weight should use no more than 25 grams of oil every day. The oil consumption of the elderly, dyslipidemia, obesity, patients with obesity-related diseases or those with a family history of obesity will even drop to 20 grams per person per day. Reduce the amount of cooking oil. The amount of cooking base oil should be less, and a thin layer of base oil can be hung on the surface of the pot. If it is stew, don't forget to "foam and skim the oil". Change the cooking oil regularly. Different edible oils have different nutritional functions. No oil can solve all the grease needs. It is recommended to change different kinds of edible oil frequently. Heated oil cannot be heated again. Some people are used to frying fish, pouring the remaining oil back into the container and frying or frying it next time. Some people even stir the fried oil several times to save it for next time. Some people are used to cooking with raw oil, and keep it for recent cooking. In fact, such oil will introduce more carcinogens or suspected carcinogens. Therefore, the heated oil must not be reheated, let alone mixed with the remaining oil used several times, which is more harmful. Old people eat more olive oil, nuts, fish and so on. This can prevent Alzheimer's disease. Adding sesame oil to the meals of the elderly can relieve constipation. When eating fish oil, remember to soften the blood vessels of the elderly with appropriate amount of sesame oil. It is harmful for the elderly to eat fried dough sticks.