Can SIBO cause weight loss plateaus while on GLP-1 medications?
Yes. SIBO can interfere with digestion, nutrient absorption, and hormone signaling. These factors can contribute to bloating, constipation, and metabolic inefficiency, which may make weight loss slower or stall despite consistent GLP-1 use.
Is bloating normal on GLP-1 medications?
Some bloating can occur, especially during the early stages of treatment or when doses are increased. However, persistent or worsening bloating that does not improve over time may indicate an underlying digestive issue such as slowed gut motility or bacterial overgrowth.
Do GLP-1 medications slow digestion?
Yes. GLP-1 medications are designed to slow gastric emptying and digestion. This helps increase feelings of fullness and regulate blood sugar. In some individuals, slower digestion may also contribute to constipation or digestive discomfort.
What is the connection between gut motility and SIBO?
Healthy gut motility helps move bacteria through the digestive tract. When motility slows, bacteria can remain in the small intestine longer than intended, increasing the risk of bacterial overgrowth. Slower motility is a known factor in SIBO development.
How is SIBO diagnosed?
SIBO is commonly evaluated using a breath test that measures hydrogen and methane gases after consuming a test solution. This noninvasive test helps identify bacterial fermentation patterns that may indicate overgrowth.
Can SIBO be treated while continuing GLP-1 therapy?
In many cases, yes. Treatment plans are individualized, but addressing gut health does not always require stopping GLP-1 medication. A healthcare provider can determine the safest and most effective approach based on symptoms and test results.
Does constipation affect weight loss results?
Constipation can increase bloating, discomfort, and day-to-day scale fluctuations. It can also slow digestive transit further, which may affect how the body processes nutrients and responds to weight loss efforts.
When should I talk to a provider about digestive symptoms?
You should consider speaking with a healthcare provider if you experience ongoing bloating, constipation, abdominal discomfort, fatigue, or a prolonged weight loss plateau that does not improve with time or standard adjustments.
Can gut health affect metabolism?
Yes. Gut health plays an important role in hormone regulation, inflammation, nutrient absorption, and energy balance. Digestive imbalances can influence how the body responds to weight loss treatments.
Are digestive symptoms a sign that GLP-1 medications are not working?
Not necessarily. Digestive symptoms often reflect how the body is adapting. Persistent symptoms may signal that additional evaluation or support is needed rather than a failure of the medication itself.





