Small Intestinal Bacterial Overgrowth (SIBO)

Is Complex and Confusing.

Everything we do is either created or curated by Dr. Nirala Jacobi ND,

an internationally recognized leader in SIBO education. 

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

Unlock Your

Digestive Health

The SIBO Doctor's resources, programs and products are thoroughly researched and backed by the latest science.

Backed by decades of clinical experience and expertise, these resources will you help you make sense of Small Intestinal Bacterial Overgrowth (SIBO), irritable bowel syndrome (IBS) and other functional digestive disorders.

Dr Nirala Jacobi, BHSc ND (USA)

Dr Nirala Jacobi ND - The SIBO Doctor


SIBO Bi-Phasic Diet
Get symptom relief with Dr Jacobi's popular dietary protocol. Updated recipes, vegetarian options, and tips.

The SIBO Success Plan

Find A SIBO-Savvy Practitioner

What Caused My SIBO? Handout
Do I Have SIBO? Quiz (for patients)
SIBO Savvy Quiz (for practitioners)

Histamine Biphasic Diet

SIBO Doctor Podcast
Practitioner Affiliate Program
Become a SIBO Doctor Approved Practitioner


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

Dr Jacobi Digestive Bitters -

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

Explore Our Courses

The SIBO Success Plan

The SIBO Success Plan (for patients)

Learn self-care techniques and how to relieve symptoms at home with our online program.

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 (for Practitioners)
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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