Nutritional Guidelines for Adults with Head and Neck Cancer: New Insights and Psychophysiological Significance

Introduction

Head and neck cancer presents enormous challenges for those affected – not only medically but also nutritionally. A recent publication by the American Society for Parenteral and Enteral Nutrition (ASPEN) in the journal JPEN (Kiss et al., 2023) provides well-founded guidelines for the nutrition of adults with head and neck cancer. This study emphasizes the importance of individualized, supportive nutritional therapy to prevent malnutrition, improve quality of life, and promote therapeutic success. But how do these findings fit into Jürg Hösli's psychophysiological interaction model? And what does this mean for everyday life?

Key Points of the Study

The authors, including Kiss, Findlay, and Frowen, have developed comprehensive recommendations based on clinical data and expert consensus. Important aspects include:

• Early detection of malnutrition: Patients with head and neck cancer are particularly at risk due to swallowing difficulties, pain, and treatment side effects (e.g., radiation).
• Individualized nutrition plans: There is no one-size-fits-all solution – nutrition must be adapted to weight, energy requirements, and symptoms.
• Use of tube feeding: In cases of severe malnutrition or inability to swallow, enteral nutrition is recommended to meet nutrient needs.
• Multidisciplinary care: Nutritionists, speech therapists, and doctors should work closely together to ensure holistic support.
• Focus on quality of life: In addition to physical care, the psychological burden of the disease is emphasized – an aspect often underestimated.

Connection to the Psychophysiological Interaction Model

The study's results reflect central approaches of Jürg Hösli's psychophysiological interaction model: nutrition is not just a matter of calories and nutrients, but an interplay of psyche, body, and environment. In head and neck cancer, psychological stressors such as anxiety or depression directly affect the autonomic nervous system, particularly the sympathetic-parasympathetic balance. A dominant sympathetic nervous system (stress mode) can inhibit digestion, impair energy metabolism, and delay regeneration. At the same time, malnutrition exacerbates stress responses by causing metabolic bottlenecks (e.g., micronutrient deficiencies) – a vicious circle.

The study highlights that nutrition as an intervention can stabilize not only physically but also psychologically. Adequate nutrient supply supports the cortisol axis, reduces chronic stress, and promotes vegetative balance, which in turn strengthens resilience to the disease. This shows how closely nutrition, psyche, and physical performance are linked – a core idea of the