What is the main consequence of small intestine bacterial overgrowth (SIBO)?

The main consequence of small intestine bacterial overgrowth (SIBO) is malabsorption of fats and nutrients. This condition occurs when an excessive number of bacteria grow in the small intestine, which can disrupt the normal digestive processes. The overgrowth of these bacteria competes with the host for nutrients, leading to inadequate absorption of fats, carbohydrates, and proteins.

In a healthy digestive system, the small intestine is meant to be relatively low in bacterial populations, allowing for efficient nutrient absorption and digestion with the help of digestive enzymes. However, in SIBO, the presence of high bacterial counts can interfere with the breakdown and absorption of essential nutrients, ultimately leading to deficiencies and related health issues.

As a result, individuals with SIBO often experience symptoms such as bloating, diarrhea, and weight loss, alongside potential malnutrition due to the impaired nutrient absorption stemming from the overgrowth of bacteria in the small intestine.