Certified Specialist in Oncology Nutrition (CSO) Practice Exam

Providing nutrition therapy during radiation for head and neck cancer focuses on three interconnected goals: ensuring adequate energy and protein intake, preserving body stores and composition, and supporting quality of life.

Radiation in this region commonly causes mucositis, swallowing pain, taste changes, dry mouth, and nausea, all of which can cut back oral intake. An evidence-based MNT approach includes early nutrition assessment, personalized calorie and protein targets, strategies to maximize intake (such as high-calorie, high-protein foods and supplements), and timely use of tube feeding if needed. When patients meet their energy and protein needs, they’re more likely to maintain weight and lean mass, which is reflected in preserved anthropometric measurements like weight and body composition.

Better intake and preserved body stores help reduce fatigue, support treatment tolerance, and improve daily functioning and well-being, which translates into an improved quality of life. Because nutrition interventions can positively affect intake, body measurements, and QoL, all of these outcomes tend to improve with evidence-based MNT during radiation.