#root-causes

Candida and SIBO: SIFO, Fungal-Bacterial Interaction & Biofilms

What small intestinal fungal overgrowth (SIFO) is, how Candida relates to SIBO, how SIFO is diagnosed, and what the limited evidence says about treatment.

H. Pylori and SIBO: Low Stomach Acid, Gastritis & Hypochlorhydria

How H. pylori can lower stomach acid and is linked to SIBO and methane overgrowth, how each is tested, and whether treating H. pylori clears SIBO.

IBD and SIBO: Crohn's Disease, Ulcerative Colitis & Structural Risk

How common SIBO is in Crohn's disease and ulcerative colitis, why strictures and surgery raise the risk, how to tell SIBO from a flare, and how it is treated.

SIBO vs. IBS: The Overlap, Post-Infectious Autoimmunity & Rome IV

How SIBO and IBS overlap: how often people with IBS have SIBO, food poisoning and anti-vinculin antibodies, gas types and IBS subtypes, and testing.

SIBO and Leaky Gut: Zonulin, Endotoxemia & Intestinal Permeability

Can SIBO cause leaky gut? What studies of intestinal permeability show, what zonulin is, why leaky gut tests are unreliable, and what helps the gut barrier.

Root Causes of SIBO: Why Does Overgrowth Happen?

What causes SIBO: slow gut movement, low stomach acid, surgery and other conditions, how much each raises the risk, and why finding the cause prevents relapse.

What is Small Intestinal Bacterial Overgrowth (SIBO)?

What SIBO is, what causes it, the three gas types, how it is diagnosed and treated, and why it often comes back, based on clinical guidelines and studies.

Preventing SIBO relapse: Address the root causes

Why SIBO often returns after treatment, what predicts relapse, and how each root cause is addressed: acid suppression, slow motility, thyroid and anatomy.

Preventing SIBO Relapse Through Lifestyle and Nervous System Regulation

How stress, sleep and exercise affect gut movement, the evidence for hypnotherapy, CBT and vagus nerve stimulation, and what it means for SIBO relapse.

Stool Tests and SIBO: What They Can and Can't Show

Can a stool test diagnose SIBO? What GI-MAP-style panels, M. smithii, calprotectin, elastase and zonulin tests really show, and which ones doctors use.

Blood tests for small intestinal bacterial overgrowth

What blood tests can and cannot show with SIBO: anti-CdtB and anti-vinculin antibodies, B12, folate and vitamin levels, and why no blood test diagnoses SIBO.