Lactobacillus reuteri is a probiotic bacterium naturally found in the human digestive system. It is also a common component in dietary supplements and certain fermented foods. This probiotic supports gut microbiome balance, contributing to overall digestive wellness.
Common Reactions
When first introducing Lactobacillus reuteri, individuals may experience common and mild gastrointestinal reactions. These can include increased gas, bloating, and mild abdominal discomfort. Such symptoms typically occur as the digestive system adapts to the new influx of beneficial bacteria. These initial disturbances are often temporary, usually subsiding within a few days to a few weeks as the gut flora stabilizes.
Changes in stool consistency are also possible, manifesting as temporary diarrhea or, less frequently, constipation. Although Lactobacillus reuteri is sometimes used to manage diarrhea, higher doses might occasionally lead to loose stools. To help the body adjust and minimize these initial reactions, it can be beneficial to begin with a lower dose and gradually increase it. If these digestive symptoms persist beyond a couple of weeks, it may suggest the body is not fully adjusting to the probiotic.
Specific Safety Considerations
While Lactobacillus reuteri is generally well-tolerated, some specific safety considerations warrant attention. Allergic reactions, though uncommon, are a possibility. Signs of an allergic response can include a skin rash, itching, swelling (particularly of the face, tongue, or throat), severe dizziness, and breathing difficulties. Should any of these symptoms appear, discontinue the probiotic immediately and seek prompt medical attention.
Caution is advisable for individuals with compromised immune systems, such as those undergoing chemotherapy, living with HIV, or who have recently undergone surgery. For these populations, there is a rare risk of infection where the probiotic bacteria could enter the bloodstream.
Lactobacillus reuteri may also interact with certain medications. Antibiotics can reduce its effectiveness, so it is often suggested to take them a few hours apart. Immunosuppressive drugs and antifungal medications could interfere with the probiotic’s function or ability to colonize the gut. Therefore, individuals with existing health conditions or taking other medications should discuss probiotic use with a healthcare provider.
When to Consult a Healthcare Professional
It is advisable to consult a healthcare professional if common reactions to Lactobacillus reuteri persist or worsen significantly. While mild gastrointestinal symptoms often resolve, ongoing gas, bloating, or abdominal discomfort lasting more than a few weeks should be reviewed by a medical professional. Immediate medical attention is necessary if more severe symptoms develop. This includes any signs of an allergic reaction, such as a widespread rash, pronounced itching, swelling of the face or throat, or difficulty breathing.
Other serious indicators that require prompt consultation include severe abdominal pain, a high fever, or any symptoms suggesting an infection, like a sore throat that does not improve or chills. Individuals in high-risk groups, such as those with weakened immune systems or severe underlying health conditions, should always seek medical advice before starting any probiotic. This ensures the use of Lactobacillus reuteri is appropriate for their specific health status and allows for monitoring of any unusual symptoms.