Results: 50 participants were randomised into a FODMAP group (n = 23) or control group (n = 27). Participants in both groups were similar in baseline values click here with more men in the intervention group. There was a significant reduction in IBS SS in the FODMAP group (275.6 ± 63.6

to 128.8 ± 82.5) compared to the control group (246.8 ± 71.1 to 203.6 ± 70.1)(p < 0.0002). This reduction correlated strongly with the reduction of FODMAPs consumed (p = 0.02). The QoL improved significantly in the FODMAP (68.5 ± 18.0 to 83 ± 13.4) vs control group (72.9 ± 12.8 to 73.3 ± 14.4)(p < 0.0001). There was a significant improvement in frequency of pain (episodes per 10 days) in the FODMAP group (5.6 ± 2.8 to 2.2 ± 2.6) compared to the control group (3.8 ± 2.7 to 3.6 ± 2.6)(p < 0.0001). There was no improvement in severity of pain or bloating. Conclusion: This study demonstrated that a reduction in dietary FODMAPs correlates strongly with symptom improvement and an increased quality of life in participants with IBS. Further studies are needed to elucidate the physiological effect of FODMAPs in the intestine. Key Word(s): 1. IBS; 2. FODMAPs; 3. Diet; 4. Treatment;

Presenting Author: MALIHSADAT FIROUZEI Additional Authors: AMMAR HASSANZADEH KESHTELI, SABER KHAZAEI, AWAT FEIZI, OMID SAVABI, PARP inhibitor PEYMAN ADIBI Corresponding Author: MALIHSADAT FIROUZEI Affiliations: Department of Medicine, University of Alberta; Research commitee, School of dentistry, Isfahan university of medical sciences; Torabinejad Dental Research Center, Department of Prosthodontics; Integrative Functional Gastroenterology Research Center Objective: Halitosis is an apparent and consistent unpleasant odor of the breath. In a minority of cases O-methylated flavonoid Halitosis might be a manifestation of a serious disease. Functional gastrointestinal disorders (FGID’s) are one of these diseases causing Halitosis. The

aim of the present study was to determine the relationship between the upper and lower FGIDs with halitosis. Methods: The presence and severity of Halitosis was assessed by a questionnaire distributed between 4763 subjects. The symptoms of FGID’s were investigated using ROME III questionnaire. The FGIDs investigated were Functional Dyspepsia (FC), Functional Bloating (FB), Functional Constipation (FC), and Irritable Bowel Syndrome (IBS). Data were subjected to Chi-square test and logistic regression analyses using SPSS 16 statistical software. Results: Out of 4652 respondents, the prevalence of upper FGID’s assessed such as GERD and functional dyspepsia were 1109 (23.5%) and 709 (15.2%) respectively. The prevalence of lower GI disorders including IBS, functional constipation and functional bloating were 1011 (21.7%), 1097 (23%) and 917 (19.7%) respectively. The prevalence of self-perceived halitosis was 51.6%, which 56.8% of them were female and 43.2% were male (P = 0.052). 43.