The Low FODMAP Diet in Individuals With Small Intestinal Bacterial Overgrowth (SIBO)

Assessment of the Impact of the Low FODMAP Diet on Gastrointestinal Symptoms and Nutritional Status in People With Small Intestinal Bacterial Overgrowth (SIBO)

This study aims to assess the impact of a low FODMAP diet (LFD) on gastrointestinal symptoms and nutritional status in individuals diagnosed with small intestinal bacterial overgrowth (SIBO). Participants were randomly assigned to either an intervention group or a control group following completion of antibiotic therapy. The intervention group followed a LFD, while the control group followed a normal diet, in accordance with the principles of rational nutrition. Gastrointestinal symptoms, nutritional status, and quality of life were assessed using questionnaires, dietary records, anthropometric measurements, and blood biochemical parameters.

Inclusion Criteria:

• age > 18 years,
• SIBO diagnosed by a doctor based on a hydrogen and methane breath test,
• the use of one type of antibiotic at the same dose and for the same period of time.

Exclusion Criteria:

• BMI < 18.5 kg/m2,
• pregnancy and breastfeeding,
• the occurrence of allergies and food intolerances,
• previous operations on the digestive tract (except appendectomy and hemorrhoidectomy),
• eating disorders,
• inflammatory bowel diseases,
• celiac disease,
• cancer, heart, liver and lung diseases with severe course, as well as neurological or psychiatric diseases,
• use of dietary modifications in the last 3 months,
• use of antibiotics other than those prescribed by a doctor to treat SIBO in the last 3 months,
• implanted stimulators (limitation of body composition measurement)