The goal of this intervention study is to investigate the effectiveness of individualized plant-based diet plan on nutritional indices and clinical outcomes in colorectal cancer patients receiving chemotherapy. The main questions to answer are: 1. What are the current eating trends in colorectal cancer patients? 2. What are the common perceptions of adopting a plant-based diet in colorectal cancer? 3. Does iPLANT diet plan improve nutritional indices of colorectal cancer patients? 4. Does iPLANT diet plan improve patients' gastrointestinal side effects and quality of life without compromising their nutritional status? Participants will be randomly assigned into two arms (intervention and control) using opaque envelop system. Intervention group will receive individualized plant-based diet plan and diet counselling, whereas the control group will receive usual diet counselling. The researcher will compare the differences in nutritional outcomes and quality of life between intervention and control groups before and after intervention.