SIBO stands for Small Intestinal Bacterial Overgrowth. It happens when bacteria that normally live in your large intestine migrate up to your small intestine—where they don’t belong.
Why It Matters
Your small intestine is designed for nutrient absorption, not fermentation. When bacteria set up camp there, they ferment food too early, producing gas and toxins that cause major digestive symptoms.
Studies suggest SIBO may be present in up to 78% of people with IBS. It's often the hidden cause behind chronic symptoms.
Common SIBO Symptoms
- Bloating that gets worse throughout the day
- Excessive gas and belching
- Abdominal pain or cramping
- Diarrhea, constipation, or both
- Feeling full quickly
- Fatigue and brain fog
The Three Types
- Hydrogen SIBO: Often causes diarrhea, responds to certain treatments
- Methane SIBO (IMO): Often causes constipation, can be stubborn
- Hydrogen Sulfide SIBO: Can cause diarrhea and other systemic symptoms
SIBO is typically diagnosed through a breath test and treated with either antibiotics or herbal antimicrobials. But here’s the key: addressing the root cause is essential to prevent it from coming back.
SIBO is complex, but it’s treatable. Understanding it is the first step toward feeling like yourself again.
