What is it? SIBO is an overgrowth of bacteria in the small intestine. Normally, less than 10,000 organisms/mL are found in the upper small intestine. SIBO is defined as a bacterial population exceeding 10,000,000 organisms/ml. What problems does it cause? Gas, belching, bloating, diarrhea, constipation, bad breath, nutrient deficiencies. Symptoms occur daily, regardless of dietary intake and…