Mrs Alice Day
School of Medicine
College of Health
Eligible to supervise Masters and PhD - email supervisor to discuss availability.
Dr Alice Day is an Advanced Gastroenterology Research Dietitian in the Inflammatory Bowel Disease (IBD) Translational Research Group at The Queen Elizabeth Hospital and Basil Hetzel Institute and holds an adjunct clinical position as a senior and specialist IBD dietitian. Alice has an extensive clinical background delivering gastroenterology-focused nutrition care since 2008 and completed her PhD in 2021 examining a diet as therapy for ulcerative colitis. Alice is the diet research lead within her team's broader microbial manipulation program, pioneering diet and microbial therapies for gastrointestinal diseases and establishing new clinical service care models.
Dr Day is a national and international advocate and representative for gastroenterology-specialist dietitians and the value of integrating diet into the management of gastrointestinal conditions. Dr Day has been an advisor on national IBD models of care and research priorities frameworks for Crohn’s Colitis Australia, was an author on the European Crohn’s Colitis Organisation (ECCO) Consensus Guidelines on Diet and Nutrition in IBD (2025) and was been appointed the second Australian dietitian to represent southern hemisphere dietitians on Dietitians of ECCO committee (D-ECCO) for the tenure 2025-2028. Dr Day is leading an international mentoring programme for dietitians seeking support to specialised in the field of gastroenterology and is a co-founder of GI DREAM (gastroenterology dietitians in research, education, advocacy and mentoring).
Dr Day is exploring dietary constituents that modulate colonic hydrogen sulphide and inflammation in ulcerative colitis. Dr Day’s research is significantly contributing to understanding the role of diet, the gut microbiota and production of microbial metabolites in the relapsing remitting courses of IBD. Specifically, how to use diet to engineer host microbiota to influence host microbial community and function, optimise efficacy of pharmacological therapies and use of diet strategies to engraft faecal microbiota transplantation.
Key areas of research interest:
1. Diet as therapy in inflammatory bowel disease
2. Diet to optimise delivery of and engraft therapies e.g. Faecal microbiota transplantation
3. Redesigning and integrating dietary services into Gastroenterology models of care
4. Disordered eating and food anxiety in gastrointestinal disorders
5. Developing novel microbial-derived biomarkers of gastrointestinal disease
| Date | Position | Institution name |
|---|---|---|
| 2023 - ongoing | Advanced Gastroenterology Research Dietitian | Central Adelaide Local Health Network |
| 2021 - ongoing | Senior Dietitian | Central Adelaide Local Health Network |
| 2018 - 2022 | Senior Academic Dietitian | Central Adelaide Local Health Network |
| Year | Citation |
|---|---|
| 2026 | Davis, R. H., Bryant, R. V., Gibson, P. R., & Day, A. S. (2026). The fate of dietary protein in the gastrointestinal tract and implications for colonic disease. Nature Reviews Gastroenterology and Hepatology, 14 pages. Scopus1 WoS1 |
| 2026 | Plush, S., Bryant, R. V., Davis, R. H., Kumar, S., & Day, A. S. (2026). Nutrient requirements for adults with ulcerative colitis over the disease course: a systematic scoping review. Critical Reviews in Food Science and Nutrition, 12 pages. |
| 2026 | Day, A. S., Vanderstappen, J., Sandall, A., Svolos, V., & Shabat, C. S. (2026). From Kitchen to Inflammatory Bowel Disease (IBD) Clinic: Transforming the Role of Dietitians in IBD Care. A Narrative Review by Dietitians With Expertise in IBD. JCC Plus, 1(1). |
| 2026 | Day, A. S., Ballard, T. M., Benetti, M., Halmos, E. P., Gibson, P. R., Yao, C. K., & Bryant, R. V. (2026). Development and evaluation of a sham diet intended as a placebo-control diet for food-based interventional trials in ulcerative colitis.. Journal of the Academy of Nutrition and Dietetics, 156345. |
| 2026 | Melton, S. L., Fitzpatrick, J., Chu, M. K. W., Gkikas, K., Monro, E., Matthews, J., . . . Day, A. S. (2026). Advancing Clinical Trial Methodology and Reporting of Outcomes for Exclusive Enteral Nutrition and Partial Enteral Nutrition in Crohn's Disease: Challenges and Recommendations. JCC Plus, 1(1). |
| 2025 | Melton, S. L., Knowles, S. R., Gwee, K. A., Gibson, P. R., Tuck, C. J., & Day, A. S. (2025). Diet Stacking – An Expanding Challenge for Gastroenterologists and Dietitians in Managing Chronic Gastrointestinal Disorders. Jgh Open, 9(12), 15 pages. |
| 2025 | Chu, M. K. W., Day, A. S., Broad, L., Costello, S. P., Edwards, S., & Bryant, R. V. (2025). Meta-Analysis: Exclusive Enteral Nutrition in Adults With Ulcerative Colitis. Alimentary Pharmacology and Therapeutics, 61(5), 756-775. Scopus7 WoS7 Europe PMC5 |
| 2025 | Yao, C. K., Green, K., Day, A. S., Ardalan, Z. M., Slater, R., Bryant, R. V., . . . Probert, C. (2025). Distinct Profiles of Fecal Volatile Organic Compounds Discriminate Ulcerative Colitis Patients With an Ileoanal Pouch From Those With an Intact Colon. Molecular Nutrition and Food Research, 69(7), 10 pages. Scopus1 WoS1 Europe PMC2 |
| 2025 | Chu, M. K. W., Day, A. S., Broad, L., Costello, S. P., Edwards, S., & Bryant, R. V. (2025). Letter: Exclusive Enteral Nutrition in Ulcerative Colitis-The Path Ahead Needs Careful Consideration. Authors' Reply.. Alimentary pharmacology & therapeutics, 61(9), 1579-1580. |
| 2025 | Kamath, S., Bryant, R. V., Costello, S. P., Day, A. S., Forbes, B., Haifer, C., . . . Joyce, P. (2025). Translational strategies for oral delivery of faecal microbiota transplantation.. Gut, online(12), gutjnl-2025-335077. Scopus13 WoS14 Europe PMC9 |
| 2025 | Mathias, R. M., Goodsall, T. M., Parker, C. E., Day, A. S., An, Y. K., Baraty, B., . . . Bryant, R. V. (2025). Expert Position Statement: Defining the Role of Intestinal Ultrasound in Assessing Constipation and Faecal Loading. Alimentary Pharmacology and Therapeutics, 62(8), 799-808. Scopus3 WoS3 Europe PMC1 |
| 2025 | Svolos, V., Gordon, H., Lomer, M. C. E., Aloi, M., Bancil, A., Day, A. S., . . . Halmos, E. P. (2025). European Crohn’s and Colitis Organisation consensus on dietary management of inflammatory bowel disease. Journal of Crohn S and Colitis, 19(9), 40 pages. Scopus28 WoS28 Europe PMC13 |
| 2025 | De Sciscio, M., Bryant, R. V., Haylock-Jacobs, S., Day, A. S., Pitchers, W., Iansek, R., . . . Kimber, T. E. (2025). Faecal microbiota transplant in Parkinson’s disease: pilot study to establish safety & tolerability. Npj Parkinson S Disease, 11(1), 6 pages. Scopus7 WoS6 Europe PMC6 |
| 2025 | Chu, M. K. W., Day, A. S., Bogatic, D., Hatzi, M., Chu, S. K. S., Costello, S. P., & Bryant, R. V. (2025). Frequent Dietetic Involvement Enhances Adherence and Clinical Outcomes of Exclusive Enteral Nutrition in Adults With Crohn's Disease. Jgh Open, 9(7), 14 pages. |
| 2025 | Day, A. S., & Bryant, R. V. (2025). Letter: Diet to Modify Risk of IBD—More Plants and Less Processed Food?. Alimentary Pharmacology and Therapeutics, 62(5), 557-558. |
| 2025 | Portmann, L. J., Fitzpatrick, J. A., Halmos, E. P., Bryant, R. V., & Day, A. S. (2025). Looking Beyond Nutrients, How to Assess Diet Quality in an Inflammatory Bowel Disease Population—A Narrative Review. Nutrients, 17(14), 20 pages. WoS1 |
| 2025 | Mathias, R. M., Goodsall, T. M., Parker, C. E., Day, A. S., An, Y. K., Baraty, B., . . . Bryant, R. V. (2025). Editorial: Intestinal Ultrasound for the Assessment of Constipation—Out of the Shadows? Authors' Reply. Alimentary Pharmacology and Therapeutics, 62(8), 855-856. Europe PMC1 |
| 2025 | Day, A. S., Slater, R., Young, R. B., Wheeler, R. Z., Marcelino, V. R., Maddigan, N. K., . . . Bryant, R. V. (2025). Functional Profiling Demonstrates That a Sulfide-Reducing Diet Achieves Microenvironmental Targets in Ulcerative Colitis.. Inflamm Bowel Dis, 31(11), 3160-3171. Scopus2 WoS2 Europe PMC1 |
| 2025 | Raja, S. S., Costello, S. P., Rayner, C. K., Day, A., Portmann, L., Uylaki, W., . . . Bryant, R. V. (2025). Examining the role of faecal microbiota transplantation for inducing remission in resistant ulcerative proctitis and distal ulcerative colitis (up-FMT).. J Crohns Colitis, 19(10), 13 pages. Scopus1 WoS2 Europe PMC1 |
| 2025 | Mathias, R. M., Plush, S. L., Fairhead, E. J. S., Ngoi, B., Edwards, L., Day, A. S., & Bryant, R. V. (2025). Patients with functional gastrointestinal disorders spend less time in tertiary care when managed by a single clinician: results of a multicentre audit in South Australia. Internal Medicine Journal, 55(2), 260-269. WoS1 Europe PMC1 |
| 2025 | Day, A. S., Ballard, T. M., Yao, C. K., Gibson, P. R., & Bryant, R. V. (2025). Food-Based Interventions as Therapy for Inflammatory Bowel Disease: Important Steps in Diet Trial Design and Reporting of Outcomes. Inflammatory Bowel Diseases, 31(4), 1121-1137. Scopus3 WoS3 Europe PMC3 |
| 2024 | Mathias, R. M., Chu, M. K. W., Edwards, S., Day, A. S., Ma, C., Jairath, V., & Bryant, R. V. (2024). Meta-analysis: Intestinal ultrasound to evaluate colonic contents and constipation.. Alimentary pharmacology & therapeutics, 60(1), 6-16. Scopus8 WoS7 Europe PMC5 |
| 2024 | Mathias, R. M., Chu, M. K. W., Edwards, S., Day, A. S., Ma, C., Jairath, V., & Bryant, R. V. (2024). Editorial: Sonographic assessment of colonic content-A new tool for constipation? Authors' reply.. Alimentary pharmacology & therapeutics, 60(2), 296-297. |
| 2024 | Melton, S. L., Day, A. S., Bryant, R. V., & Halmos, E. P. (2024). Revolution in diet therapy for inflammatory bowel disease. Jgh Open, 8(7), 10 pages. Scopus14 WoS15 Europe PMC10 |
| 2024 | Russell, E. E., Day, A. S., Dimitroff, C., Trakman, G. L., Silva, H., Bryant, R. V., . . . Fitzpatrick, J. A. (2024). Practical application of the Crohn's disease exclusion diet as therapy in an adult Australian population. Journal of Gastroenterology and Hepatology Australia, 39(3), 446-456. Scopus14 WoS14 Europe PMC11 |
| 2024 | Stankevicius, C., Davis, R. H., Huynh, D., Hatzi, M., Morgillo, S., & Day, A. S. (2024). Sarcopenia as a Risk Factor for Mortality in NAFLD: How Should We Diagnose It?. Journal of Digestive Diseases, 25(11-12), 645-654. Scopus1 WoS1 Europe PMC2 |
| 2022 | Day, A. S., Yao, C. K., Costello, S. P., Andrews, J. M., & Bryant, R. V. (2022). Food-related quality of life in adults with inflammatory bowel disease is associated with restrictive eating behaviour, disease activity and surgery: A prospective multicentre observational study. Journal of Human Nutrition and Dietetics, 35(1), 234-244. Scopus40 WoS38 Europe PMC35 |
| 2022 | Day, A. S., Yao, C. K., Costello, S. P., Ruszkiewicz, A., Andrews, J. M., Gibson, P. R., & Bryant, R. V. (2022). Therapeutic Potential of the 4 Strategies to SUlfide-REduction (4-SURE) Diet in Adults with Mild to Moderately Active Ulcerative Colitis: An Open-Label Feasibility Study. Journal of Nutrition, 152(7), 1690-1701. Scopus40 WoS38 Europe PMC34 |
| 2021 | Bryant, R. V., Day, A. S., McGrath, K. C., Telfer, K., Yao, C. K., & Costello, S. P. (2021). Fecal microbiota transplantation augmented by a sulfide-reducing diet for refractory ulcerative colitis: A case report with functional metagenomic analysis. Jgh Open, 5(9), 1099-1102. Scopus15 WoS13 Europe PMC11 |
| 2021 | Day, A. S., Yao, C. K., Costello, S. P., Andrews, J. M., & Bryant, R. V. (2021). Food avoidance, restrictive eating behaviour and association with quality of life in adults with inflammatory bowel disease: A systematic scoping review. Appetite, 167, 16 pages. Scopus79 WoS76 Europe PMC70 |
| 2021 | Day, A. S., Wood, J. A., Halmos, E. P., & Bryant, R. V. (2021). Practical Guidance for Dietary Management of Patients With Inflammatory Bowel Disease During the SARS-CoV2 Pandemic. Journal of the Academy of Nutrition and Dietetics, 121(2), 201-209. Scopus1 WoS1 Europe PMC1 |
| 2021 | Davis, R., Day, A., Barrett, J., Vanlint, A., Andrews, J. M., Costello, S. P., & Bryant, R. V. (2021). Habitual dietary fibre and prebiotic intake is inadequate in patients with inflammatory bowel disease: findings from a multicentre cross-sectional study.. Journal of Human Nutrition and Dietetics, 34(2), 420-428. Scopus20 WoS19 Europe PMC16 |
| 2021 | Day, A. S., Davis, R., Costello, S. P., Yao, C. K., Andrews, J. M., & Bryant, R. V. (2021). The Adequacy of Habitual Dietary Fiber Intake in Individuals With Inflammatory Bowel Disease: A Systematic Review. Journal of the Academy of Nutrition and Dietetics, 121(4), 688-708.e3. Scopus36 WoS30 Europe PMC27 |
| 2020 | Day, A., Wood, J., Melton, S., & Bryant, R. (2020). Exclusive enteral nutrition: An optimal care pathway for use in adult patients with active Crohn's disease. JGH Open, 4(2), 260-266. Scopus35 WoS34 Europe PMC26 |
| 2020 | Costello, S. P., Day, A., Yao, C. K., & Bryant, R. V. (2020). Faecal microbiota transplantation (FMT) with dietary therapy for acute severe ulcerative colitis.. BMJ Case Rep, 13(8), 3 pages. Scopus25 WoS20 Europe PMC23 |
| Year | Citation |
|---|---|
| 2024 | Goodsall, T. M., Day, A. S., Andrews, J. M., Ruszkiewicz, A., Ma, C., & Bryant, R. V. (2024). Composite Assessment Using Intestinal Ultrasound and Calprotectin Is Accurate in Predicting Histological Activity in Ulcerative Colitis: A Cohort Study. In Inflammatory Bowel Diseases Vol. 30 (pp. 190-195). England: OXFORD UNIV PRESS INC. DOI Scopus24 WoS27 Europe PMC19 |
| 2024 | Portmann, L., Bryant, R., Raja, S., Rayner, C., Telfer, K., Costello, S., & Day, A. (2024). Comprehensive dietitian-delivered dietary advice effectively achieves dietary change in adults with Ulcerative Colitis, whereas generalised written dietary advice does not. In JOURNAL OF CROHNS & COLITIS Vol. 18 (pp. I1527). OXFORD UNIV PRESS. WoS1 |
| 2024 | Plush, S., Burfield, K., Kumar, S., Bryant, R., & Day, A. (2024). Interdisciplinary student-led screening clinics can identify undernutrition, sarcopenia and mental health risk in ambulatory patients with Inflammatory Bowel Disease. In JOURNAL OF CROHNS & COLITIS Vol. 18 (pp. I981-I982). OXFORD UNIV PRESS. |
| 2024 | Theron, C., Bryant, R., Bogatic, D., & Day, A. (2024). Systematic scoping review: dietary interventions for the treatment of primary sclerosing cholangitis. In JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY Vol. 39 (pp. 315-316). WILEY. |
| 2024 | Mathias, R. M., Day, A. S., Prowse, S. J. B., Edwards, S., Pathi, R., Goodsall, T., & Bryant, R. (2024). Accuracy of intestinal ultrasound in assessing proximal constipation in ulcerative colitis: interim results from the SEE UCAC study. In JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY Vol. 39 (pp. 177-178). WILEY. WoS1 |
Dr Day's research has been internationally recognised and is recipient of multiple grants to lead dietary therapy trials for inflammatory bowel disease
Dr Day is passionate about teaching, training and mentoring, eligible to primary supervise Masters and PhD candidates. Dr Day is also leading an international mentoring programme for dietitians working in the field of gastroenterology.
| Date | Role | Research Topic | Program | Degree Type | Student Load | Student Name |
|---|---|---|---|---|---|---|
| 2025 | External Supervisor | Investigating Gut Microbial Hydrogen Sulphide (H2S) as a Biomarker and Therapeutic Target for Ulcerative Colitis | - | Doctorate | Full Time | Miss Kate Collins |
| 2024 | Co-Supervisor | Microbial manipulation as treatment for primary sclerosing cholangitis | Doctor of Philosophy | Doctorate | Full Time | Dr Damjana Bogatic |
| 2024 | Co-Supervisor | Exploring the use of exclusive enteral nutrition in adult patients with Crohn's disease | Doctor of Philosophy | Doctorate | Full Time | Dr Matthew Chu |
| 2024 | Co-Supervisor | Exploring the use of exclusive enteral nutrition in adult patients with Crohn's disease | - | Doctorate | Full Time | Dr Matthew Chu |
| 2024 | Co-Supervisor | Microbial manipulation as treatment for primary sclerosing cholangitis | - | Doctorate | Full Time | Dr Damjana Bogatic |
| 2023 | Co-Supervisor | Intestinal ultrasound as a novel tool to assess luminal contents in inflammatory and functional gastrointestinal disorders | Doctor of Philosophy | Doctorate | Full Time | Dr Ryan Mathias |
| 2023 | Co-Supervisor | Evaluating the inflammatory potential of dietary protein in inflammatory bowel disease | Doctor of Philosophy | Doctorate | Full Time | Miss Rachel Hannah Davis |
| 2023 | Co-Supervisor | Evaluating the inflammatory potential of dietary protein in inflammatory bowel disease | - | Doctorate | Full Time | Miss Rachel Hannah Davis |
| 2023 | Co-Supervisor | Intestinal ultrasound as a novel tool to assess luminal contents in inflammatory and functional gastrointestinal disorders | - | Doctorate | Full Time | Dr Ryan Mathias |
| 2022 | Co-Supervisor | Dietitian-first services: application of extended scope dietetics within gastroenterology services. | Doctor of Philosophy | Doctorate | Full Time | Miss Samantha Plush |
| 2022 | Co-Supervisor | Dietitian-first services: application of extended scope dietetics within gastroenterology services. | - | Doctorate | Full Time | Miss Samantha Plush |
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