If blood pressure rises after eating, the first consideration is the increase in blood volume. After eating soups, porridge and greasy food, the blood volume may increase, which will increase the load on the heart and thus raise blood pressure. After eating, the body’s sympathetic nerves become excited, and the sympathetic nerves will cause the small arteries in the body to constrict, which will lead to an increase in blood pressure. It should also be noted that the patient may eat fatty foods, such as animal offal, which increases the lipid content in the blood, and the increased lipid content will also increase the patient’s blood pressure.