At present, the clinical cause of fever with meals is not clear, but it is speculated that it may be caused by eating stimulating foods, high temperature foods and the special power effect of foods. 1. Eating stimulating food: After eating spicy stimulating food, it will lead to accelerated blood circulation and cause fever symptoms, such as drinking alcohol, eating chili peppers, spicy hot pot, etc. However, there is no need to worry too much. However, there is no need to worry too much, usually after an interval of about half an hour body temperature will return to normal. 2. Hot food: If the patient eats hot food, it can bring heat from the food to the body, thus causing a slight increase in body temperature. At this time, the body will adjust itself and can dissipate heat by generating heat. If there is a transient increase in body temperature, there will also be sweating, which will return to normal soon after adjustment. 3. Special power effect of food: after eating, due to the special power effect of food, the patient will consume a certain amount of heat when eating, at this time there will be a slight fever, if eating too much protein or fat food, there will also be a slight fever. However, this process is relatively short-lived, and the thermoregulatory center will quickly adjust the caloric balance. It is recommended to pay attention to a light diet in daily life, pay attention to keep warm, drink more water, more rest, if the body temperature rises after eating for a long time, it is recommended to consult a doctor in time to find out the cause of fever and then take standardized treatment.