For cancer patients undergoing PIPAC treatment, a protein-rich diet is recommended. Nutritional management should be individually planned under the supervision of a specialized dietitian. Post-procedure nutritional support is provided. The consumption of acidic beverages should be carefully evaluated depending on the surgical site. For example, in patients who have undergone total gastrectomy, acidic drinks may cause discomfort. Apart from these specific situations, non-sugary sodas may be preferred, while sugary acidic drinks are generally advised to be avoided.