Dr Cian Greaney completed his PhD at the School of Allied Health, University of Limerick in January 2026, under the supervision of Audrey Tierney and Katie Robinson. His doctoral research, “Reframing Nutrition in Cystic Fibrosis: Diet Quality, Patient Outcomes, and Lived Experience in the Modulator Era,” explored the evolving role of nutrition in Cystic Fibrosis in the context of new treatments. THis research was funded by Research Ireland's Government of Ireland Postgraduate Scholarship.

He has an established track record of research dissemination, with multiple peer-reviewed publications in journals including the Journal of Cystic Fibrosis, European Journal of Nutrition, and European Respiratory Review, and presentations at major international conferences such as the European, Australasian, and North American Cystic Fibrosis Conferences, where he has received best poster awards.

Alongside his academic work, Dr Greaney has experience in applied nutrition practice and research, including roles as a postdoctoral researcher and research assistant on funded projects examining clinical populations and healthcare services. He has also contributed to knowledge translation through public engagement, including publications with RTÉ Brainstorm and patient-focused platforms.

His work is characterised by a strong commitment to bridging research and practice, with a focus on producing evidence that is both clinically relevant and meaningful to patients.

Dr Cian Greaney is a Registered Nutritionist (RNutr) and postdoctoral researcher specialising in clinical nutrition, diet quality, and patient-centred research in chronic disease. His research focuses on Cystic Fibrosis, examining how advances in treatment in the CFTR modulator era are reshaping nutritional needs, health outcomes, and lived experiences.

His work adopts a mixed-methods approach, with particular expertise in qualitative research. Through in-depth interviews and reflexive thematic analysis, he has explored how adults living with Cystic Fibrosis interpret dietary guidance, navigate evolving nutritional recommendations, and experience the relationship between diet, identity, body image, and quality of life. This is complemented by quantitative analyses of dietary intake, diet quality, and patient-reported outcomes, enabling a more integrated understanding of nutrition in Cystic Fibrosis.

A key focus of his research is challenging traditional calorie-focused models of nutrition in Cystic Fibrosis, highlighting the importance of diet quality, sustainability, and patient relevance. His work is closely aligned with clinical practice, involving collaboration with multidisciplinary teams, Cystic Fibrosis clinics, and patient organisations, alongside leading patient and public involvement (PPI) activities.

Dr Greaney contributes to teaching across undergraduate and postgraduate programmes in nutrition and dietetics, with particular interests in clinical nutrition, qualitative research methods, and research translation. He has delivered guest lectures in areas including nutritional physiology, clinical nutrition, and reflexive thematic analysis, and has contributed to professional competency modules within medical education.

He has experience supervising Masters-level research projects, particularly in dietary assessment methods, diet quality, Cystic Fibrosis, and body image, and has supported teaching delivery through tutorials, laboratory sessions, and assessment processes including Objective Structured Clinical Examinations (OSCEs).

His teaching approach emphasises the development of critical thinking, the application of research to practice, and supporting students in linking theoretical knowledge with real-world clinical contexts.