A, B, C, D show outcome results for individual symptoms using GSRS-IBS scoring system and mean symptom severity scores before and after IBS dietetic management who completed treatment between 1 May 2013 and 30 April 2016. A, B, C, D show outcome results for individual symptoms using GSRS-IBS scoring system and mean symptom severity scores before and after IBS dietetic management who completed treatment between 1 May 2013 and 30 April 2016. A and B (n=146) patients aged 16-45 years. C and D (n=335) adult patients of any age. Marianne Williams et al. Frontline Gastroenterol doi:10.1136/flgastro-2016-100727 Copyright © BMJ Publishing Group Ltd & British Society of Gastroenterology. All rights reserved.