Experiences and Needs regarding Nutrition Information and Nutritional Supplements among Oncology Healthcare Professionals: A Sequential Exploratory Mixed-methods Study

Purpose This study aimed to acquire a comprehensive understanding of the experiences and needs of HCPs in a university medical center at the medical oncology department regarding the provision of uniform information on nutrition and nutritional supplements to adult patients with cancer. Methods This exploratory sequential mixed-methods study employed an online questionnaire that was sent to HCPs and included questions on indications for providing nutrition advice, knowledge about nutrition and nutritional supplements, and needs regarding providing uniform advice about these topics. This was followed by semi-structured interviews with HCPs to gain deeper insights into their experiences and needs. Results Thirty-two HCPs completed the questionnaire, and nine HCPs participated in semi-structured interviews. The results identified five themes: knowledge of nutrition and nutritional supplements, interdisciplinary care, patient-centered care, information sources, and (scientific) basis of nutrition information and research. Conclusion This study highlights the need to improve HCPs’ knowledge and consistency regarding nutritional care. Although general nutritional knowledge is well established, familiarity with nutritional supplements remains limited, and individuals tend to approach them with less confidence. Education, awareness of guidelines, evidence-based information, a clearer division of roles between HCPs, and interprofessional collaboration are key to improving confidence, quality, and delivering personalized nutritional support in oncology.