EuGMS SIG on NUTRITION – ESPEN SIG on GERIATRICS

Elisabet Rothenberg is a registered dietitian and professor in Geriatric Nutrition at the Department of Nursing and Integrated Health Sciences, University of Kristianstad, Kristianstad, Sweden. Her academic research interests focus specifically on dietary intake and body composition in ageing. In addition to her research and teaching roles, she serves as the chair of SWESPEN, the Swedish PEN Society.

Gülistan Bahat is a Professor of Geriatrics at Istanbul University, Istanbul Medical Faculty. Her main clinical and research interests include sarcopenia, nutrition, frailty, dysphagia, sarcopenic obesity, rational drug use, and the management of chronic diseases in older adults. She has authored more than 250 scientific publications indexed in the Web of Science. She is a member of EWGSOP2 sarcopenia consensus writing group, GLIM Obesity Initiative writing group, STOPP/START criteria for potentially inappropriate prescribing in older people: version 3 writing group, one of the early members and position statement co-authors of international group for reducing inappropriate medication use and polypharmacy (IGRIMUP) and members of Global Leadership Initiative on Sarcopenia (GLIS), Global Initiative of Malnutrition (GLIM) and Sarcopenic Obesity Global Leadership Initiative (SOGLI) groups.  Currently, she serves as a member of the European Society for Clinical Nutrition and Metabolism (ESPEN) Scientific Committee, Chair of the EuGMS Special Interest Group on Nutrition, and Chair of the EuGMS Task and Finish Group on Obesity. She is also a member of the Executive Board of the Turkish Academic Geriatrics Society. In addition, she serves as an Associate Editor of Clinical Nutrition and as an editorial board member of several international scientific journals.

Harriët Jager-Wittenaar is an internationally recognized expert and leading researcher in malnutrition, dietetics, and healthy ageing, holding professorships at Radboud university medical center and Hanze University of Applied Sciences, as well as a guest professorship at Vrije Universiteit Brussel. Her research focuses on improving nutritional care across the continuum of care, from prevention and early identification to treatment and implementation, with particular emphasis on value-based dietetics, interprofessional collaboration, and integrated nutritional care. Through her extensive scientific contributions and international leadership roles, she has helped shape clinical guidelines, healthcare policy, education, and professional practice worldwide.