There is no special requirement for tumor patients to eat oil, so there is no such thing as “the most suitable”, such as peanut oil, corn oil, soybean oil and so on can be eaten. Tumor is the result of abnormal differentiation or proliferation of cells in the body under the action of various promotional factors, which belongs to the body’s new organisms and can damage the normal tissues and organs in the body. While oils are mainly extracted from peanuts, corn and other plants, they usually do not have an effect on tumors, and patients can choose to consume oils according to their own preferences. When tumor patients consume oil, it is better to choose the oil that meets the hygiene standard, and eat less or not to eat all kinds of oil that have been used repeatedly, because these oils may contain a lot of free radicals, trans fatty acids and other harmful substances, and long-term exposure to the health damage, in addition, these patients also need to eat less fried food. If there is physical discomfort, it is necessary to consult a doctor in a timely manner.