Can cancer eat leeks? Cancer patients have no food that needs strict taboos in diet, so they can eat leeks. Patients with malignant tumors generally have no absolute taboos in diet, just try to avoid cold and irritating foods, such as raw fish products and foods that are too spicy and greasy. Recommend a light diet rich in protein and dietary fiber, and eat more fresh fruits and vegetables. Leek is a vegetable rich in cellulose, which can improve gastrointestinal motility. However, for patients with weak constitution and gastrointestinal reaction after chemotherapy, the gastrointestinal function is relatively weak, and the incompletely cooked leeks are irritating to some extent. Eating too much leeks may lead to excessive gastric acid secretion and heartburn, so it is necessary to avoid eating too much leeks at one time. As long as a reasonable diet structure, adequate and balanced nutrition intake and energy supply can be ensured, the diet of cancer patients should be diversified. In addition, smoking and drinking should be avoided as much as possible, and proper physical exercise should be carried out regularly. This content was reviewed by Chen Xiaohua, the chief physician of the Oncology Department of the Hospital of Integrated Traditional Chinese and Western Medicine of Southern Medical University. Please check the details of the doctor&;s answers here.