Brief Summary :
The goal of this clinical trial is to investigate the effects of differing FODMAP diets on gut microbiota, gut barrier function, symptom severity, quality of life, and psychological status in FGID patients. The main question it aims to answer is :
How does diets with differing FODMAP content affect the gut microbiota, gut barrier function, symptom severity, psychological status and quality of life in patients with FGID ? Researchers will compare low FODMAP diet, Gentle FODMAP diet and Traditional Dietary Advice (NICE guidelines) to see which diet is more suitable and effective for Malaysian FGID patients.
Participants will :
Be given either low FODMAP diet, Gentle FODMAP diet or Traditional Dietary Advice intervention and will be required to follow the intervention for two weeks.
Be required to provide stool and blood samples during baseline and intervention Record 4 day food diary and complete assessing questionnaires during baseline and intervention
Aged 18 and above
Able to provide informed consent
Those with pre-existing irritable bowel syndrome (IBS) or functional dyspepsia (FD) or both screened by gastroenterologists
Meet the ROME III- Asian criteria for FGID
Pregnant or lactating women
History declared by the participant of pre-existing gastrointestinal disorder, including but not limited to Inflammatory Bowel Disease, Coeliac Disease, Pancreatitis, Gallstone disease (biliary colic, cholecystitis), Diverticulitis
Cancer of any kind
Patients with reported history of previous resection of any part of the GI tract other than appendix or gall bladder, intestinal stoma