This module explores oncology nutrition strategies to support patients throughout cancer treatment, recovery, and survivorship. It covers nutritional screening, individualized energy and protein requirements, and dietary management of treatment-related symptoms such as nausea, appetite loss, mucositis, swallowing difficulties, taste changes, and breathlessness. The module also examines plant-based, Mediterranean-style, gut-supportive, and food-safety approaches for immunocompromised patients, along with the appropriate use of supplements under medical supervision. Emphasis is placed on continuous nutritional assessment, multidisciplinary care, and practical interventions to support nutritional status and quality of life.