Ahmed, Dr Iftikhar

Iftikhar AhmedMBBS, MRCP (UK), MRCP (Gastro), MD, PG Cert. Medical Education




Inflammatory bowel disease (IBD)

Training and education

  • Graduation from King Edward Medical University Lahore, Pakistan, 1995 to 2000
  • Post graduation training, Yorkshire Deanery, 2002 to 2006
  • Gastroenterology training, Severn deanery, 2007 to 2014
  • Doctoral degree (MD), University of Bristol, 2008 to 2010
  • Postgraduate certificate in teaching, University of Bristol, 2012 to 2014


Dr Ahmed is a consultant gastroenterologist who joined the Trust in September 2014. Dr Ahmed has a specialist interest in the care of patients with inflammatory bowel disease (IBD) and, during his specialist training, he gained experience of working in a variety of hospitals and settings. He has a thorough understanding of the different aspects of IBD service demands, service delivery and patient expectation. He is a lead consultant for transition services in IBD.


Dr Ahmed's research interests include investigating the changes in the smell of faeces and breath in order to understand the pathophysiological mechanisms of IBD and to develop a non-invasive diagnostic biomarker. Through formal laboratory research, Dr Ahmed studied the metabolomic profiles of patients with IBD and irritable bowel syndrome (IBS) in comparison with healthy individuals. He presented his work at both national and international forums and published several papers on his research. Additionally, he has an active interest in strengthening national networks and promoting international alliances in research and teaching.

Dr Ahmed is an honorary senior clinical lecturer at the University of Southampton and is departmental lead for the teaching and training of junior doctors. He is on the reviewer panel of several national and international journals, including Gut, PLoS One, Journal of Gastrointestinal and Liver Disease and BMJ.


  • Ahmed I, Greenwood R, Costello B, Ratcliffe N, Probert CS. Investigation of faecal volatile organic metabolites as novel diagnostic biomarkers in inflammatory bowel disease. Aliment Pharmacol Ther. 2016 Mar;43(5):596-611
  • Ahmed I, Fayyaz F, Nasir M, Niaz Z, Furnari M, Perry L. Extending landscape of volatile metabolites as novel diagnostic biomarkers of inflammatory bowel disease - a review. Scan J Gastroenterol 2015 Nov 6:1-8.
  • Ahmed I, Greenwood R, Costello B, Ratcliffe NM, Probert CS. An Investigation of Fecal Volatile Organic Metabolites in Irritable Bowel Syndrome. PLoS ONE. 2013 March; 8(3): 58202-4
  • Probert CS, Reade S, Ahmed I. Fecal volatile organic compounds: a novel, cheaper method of diagnosing inflammatory bowel disease? Expert Rev Clin Immunol. 2014 Sep;10(9):1129-31
  • Raman M, Ahmed I, Gillvete PM, Probert CS, Ratcliffe NM, Smith S, Greenwood R, Sikaroodi M, Lam V, Crotty P, Bailey J, Myers RP, Rioux KP. Fecal microbiome and volatile organic compound metabolome in obese humans with nonalcoholic fatty liver disease. Clinical Gastroenterology and Hepatology. 2013 Jul;11(7):868-75
  • Probert CS٭, Ahmed I٭, Khalid T, Johnson E, Smith S, Ratcliff N. Volatile organic compounds as diagnostic biomarkers in gastrointestinal and liver diseases. Journal of Gastrointestinal and Liver Disease. 2009 Sep;18(3):337-44  


You can contact Dr Ahmed via his secretary, Rebecca Brooks, by phoning 023 8120 8462, faxing to 023 8120 5203 or by emailing Rebecca.Brooks@uhs.nhs.uk.