A well-balanced diet plays a crucial role in supporting cancer patients by boosting immunity, reducing treatment side effects, and promoting recovery. A cancer-friendly diet should be rich in antioxidants, found in colorful fruits and vegetables like berries, spinach, and carrots, to help combat oxidative stress. Lean proteins from sources like fish, chicken, eggs, and legumes aid in tissue repair. Whole grains such as brown rice and quinoa provide sustained energy, while healthy fats from nuts, seeds, and olive oil support overall health. Patients should avoid processed foods, excessive sugar, and red meat, as these can promote inflammation. Staying hydrated and eating small, frequent meals can also help manage nausea and maintain strength during treatment. Always consult a doctor or dietitian for personalized nutritional guidance.