Guide To The Causes And Risk Factors Of Lactose Intolerance

Bacterial Overgrowth In The Small Intestine

Bacterial overgrowth in the small intestine is a recognized medical condition related to lactose intolerance, and it triggers many of the same symptoms. In addition to the symptoms of lactose intolerance, patients with an excessive amount of abnormal bacteria in the small intestine might experience fatigue and constipation, and nausea is common. Individuals with severe forms of the disease could lose weight unintentionally, and iron deficiency anemia may develop. Patients who have weakened immune systems, including individuals with lupus, and those who have had abdominal surgery are at an increased risk of this kind of bacterial overgrowth. To check for the condition, doctors use a lactulose breath test. Similar to the hydrogen breath test, the lactulose test involves the patient drinking a lactulose solution and breathing into a balloon at fifteen-minute intervals for a three-hour period. The breath samples are considered positive for bacterial overgrowth if either hydrogen or methane is present. To treat bacterial overgrowth, doctors generally use antimicrobial herbs and antibiotics such as rifaximin and neomycin. Patients are asked to follow a low-FODMAP diet.

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