1 McGill Nutrition and Performance Laboratory, McGill University Health Centre, Montreal, Quebec, Canada.
2 Supportive and Palliative Care Division, McGill University Health Centre, Montreal, Quebec, Canada.
3 Department of Health, Kinesiology, and Applied Physiology, Concordia University, Montreal, Quebec, Canada.
4 Department of Anesthesia, McGill University Health Centre, Montreal, Quebec, Canada.

We examined the effectiveness of dietary counseling performed within a trimodal prehabilitation study for patients with cancer awaiting hepato-pancreato-biliary (HPB) surgery. Additionally, we explored relationships between nutritional status and health-related quality of life (HRQoL). The dietary intervention aimed to achieve a protein intake of 1.5 g/kg/day and reduce nutrition-impact symptoms. Patients received dietary counseling 4 weeks prior to surgery (prehabilitation group); the...