Patients with kidney cancer who experience vomiting are facing a serious situation because nausea and vomiting are common symptoms among late-stage cancer patients and are often more distressing than the pain from cancer itself. Nausea and vomiting may be side effects of treatment, or they might be caused by cancer invading the digestive and nervous systems. People who are ill often feel anxious, which is also one of the reasons causing vomiting. Cancer patients need to pay extra attention to their diet, as this can greatly aid their treatment. In daily life, it is beneficial to consume more fresh fruits, vegetables, whole grains, and legumes, focusing on light meals to ensure a balanced diet and supplement various nutrients.