Preparing healthy foods is very important in the treatment of cancer patients. The right choice of food can help strengthen a patient’s immune system, reduce the side effects of treatment, and possibly lower the risk of recurrence. But which foods are best? Patients should stick to a plant-based diet and consume brightly colored vegetables. Whole grains, lean proteins, and fresh fruits can also benefit patients and can be an excellent alternative to red meat, processed carbohydrates, and refined sugars.