Learn How to Beat

Small Intestinal Bacterial Overgrowth (SIBO) for good.

We are your trusted resource for education and products to support digestive health for SIBO sufferers.


Small intestinal bacterial overgrowth (SIBO) is complex and confusing.

Patients are routinely given misinformation and improper treatments. Even the most highly skilled practitioners can become overwhelmed and struggle to help patients with SIBO. 

We have proven methods that work. Backed by decades of clinical experience and expertise, we’ll help you make sense of SIBO, IBS, and other functional digestive disorders.

11% of people world-wide have IBS
Up to 80% of people with IBS have SIBO
50% of patients struggle with relapse flares

How We Help

The SIBO Doctor provides educational resources, programs, and products related to SIBO, IBS, and other functional digestive disorders.  Everything we do is either created or curated by Dr. Nirala Jacobi, ND, an internationally recognized leader in SIBO education.  Our programs and products are thoroughly researched and backed by the latest science. They are guided by 20+ years of clinical experience. They are accessible to patients and practitioners worldwide. 

Dr Nirala Jacobi, BHSc ND (USA)

SIBO Bi-Phasic Diet
Get symptom relief with this 3-month dietary protocol.

The SIBO Success Plan

SIBO Success Plan
Learn self-care techniques with this
8-lesson online program.


SIBO Testing
Order at-home SIBO breath test
from our partners

Dr Jacobi Digestive Bitters - Biphasic.shop

Bi-Phasic Supplements
Dr. Jacobi’s exclusive dietary
supplements to complement the diet.

Explore Our Online Courses

The SIBO Success Plan

The SIBO Success Plan (for patients)
Learn to Manage & Prevent Symptoms in 8 Weeks. This may be exactly what you need to take control of your life.

The SIBO Mastery Program (for practitioners)
Unlock the Secrets to Treating Complex SIBO Cases: Become a SIBO-Doctor-Approved Practitioner

Gut Health Expert Training
From restoring the microbiome to mastering IBD to performing a functional GI exam, our courses teach you everything you need to become the gut health expert your patients require.

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