In the case of small intestine overgrowth (SIBO) it is important to adapt the diet in a targeted manner so as not to “feed” the bacteria any further. A low-FODMAP diet, which avoids fermentable sugars that are easily metabolized by the bacteria in the small intestine, is particularly helpful. The specific carbohydrate diet (SCD) or the elemental diet can also have a supportive effect. In the long term, the diet should be individually adapted to avoid nutrient deficiencies and to stabilize the intestinal flora. It is advisable to consult an experienced nutritionist or a naturopathic doctor.