The low FODMAP diet is a type of diet that limits the intake of certain carbohydrates that can cause digestive problems in some people. FODMAP stands for fermentable oligosaccharides, disaccharides, monosaccharides, and polyols, which are short-chain sugars that are poorly absorbed in the small intestine and can be fermented by bacteria in the large intestine. This can lead to symptoms such as bloating, gas, pain, diarrhea, and constipation. The low FODMAP diet is used as part of the therapy for those with irritable bowel syndrome (IBS) and small intestinal bacterial overgrowth (SIBO), which are common gastrointestinal disorders.