Root causes for SIBO: holistic approach

When SIBO Keeps Coming Back: Treat the Roots, Not Just the Bugs

If you’ve done the antimicrobials and the low-FODMAP diet—and your SIBO keeps boomeranging back—you’re not alone. Killing overgrowth can bring short-term relief, but unless you fix the upstream reasons bacteria overgrew (and stayed) in the small intestine, symptoms tend to return.

Below is a clear, whole-person map using my 4 Roots method to find (and fix) your biggest block so SIBO can resolve—and stay gone.

The 4 Roots (and how they drive SIBO)

In this post I provide a general plan on how to approach SIBO with a whole body healing process. We can’t just address the bacterial overgrowth but must understand why it is there. Everyone has a different root cause.

In my Self Healing Body coaching program, I help you figure out your unique root cause, addressing the system that needs it most. Stress in this system may block healing from SIBO.

This is how it works.

Mind/adrenals

Your mind is closely linked to your adrenals. Mental stress causes your body to pump out cortisol. SIBO is highly correlated to stress, as a root cause or healing prevention. This is the reason why….

Chronic stress and cortisol slows motility (the migrating motor complex), loosens the gut barrier, and reduces secretory IgA (gut immunity). This creates prime conditions for overgrowth to flourish.
Signs that the adrenals are contributing to your root cause: You are an over thinker/over researcher, wired but tired at night (second wind when its time to sleep), wake up between 2–4 a.m., afternoon energy crashes, anxiety and stress intolerance, salt/sugar cravings.

Gut/Physical interventions

The mechanics of your digestive process is the gut centered reason that SIBO won’t resolve.

Low stomach acid and weak enzyme/bile output mean food isn’t fully broken down, so more reaches the small intestine to ferment. And you don’t benefit from the nutrients you eat.
Things that lower stomach acid are an h. Pylori infection, use of long-term PPIs(stomach acid inhibitors), frequent snacking, rushed, stressed meals or not chewing well, lack of mineral cofactors like sodium and zinc. Cortisol can also lower stomach acid.

Liver/Emotions

The liver and bile production can encourage SIBO by removing the body’s protection against in. Liver stress and stagnation has emotional roots in anger, frustration and jealousy.

A sluggish liver or gallbladder leads to poor bile flow. Bile is antimicrobial and keeps small-bowel microbes in check. Bile is a detergent that cleanses the small intestine, so with good bile flow, SIBO doesn’t stand a chance.
Signs of liver stress are nausea or heaviness after fatty meals, pale/clay colored, greasy or floating stools, 1–3 a.m. waking, easily irritated, skin or eye issues, hormonal imbalance or estrogen dominance.

Thyroid/Energy

The Thyroid is a common root cause of SIBO that is often missed because testing is incomplete. Thyroid health dictates our energy. It’s closely tied to adrenal health and influenced by diet, blood sugar and stress. It is also central to communication: how we speak our truth and express our voice.

Low thyroid slows metabolism, including stomach acid, enzyme output, AND gut motility.
Signs of thyroid slow down: often cold and tired, cold hands/feet, constipation, low morning energy/brain fog, hair falling out/dry skin, depression.

SIBO is often a downstream result of one (or more) of these roots. If you only “kill,” the terrain that allowed overgrowth… stays. Missing one of these factors, if it a root cause for you, will keep healing efforts from truly taking hold.

Motility matters (and why stress wrecks it)

Between meals, the Migrating Motor Complex (MMC) acts like a housekeeping wave. Stress, grazing, infections, low thyroid, adhesions, and some meds can blunt it.

Restore MMC by: spacing meals 3–4 hours, gentle walking after meals, a small pre-bed snack only if needed for blood sugar regulation (adrenal support), and (with your clinician’s guidance) considering prokinetics (ginger/ Motilpro, Iberogast; Rx options when appropriate).

Common upstream patterns that look like “SIBO flares”

Adrenal/cortisol pattern: flares with stress, sleep debt, or under-eating; relief with steady meals and nervous-system work.
Liver/bile pattern: worse with rich meals; right-upper fullness; floating/pale stools, frustration.
Thyroid pattern: persistent constipation, cold intolerance, weight gain, brain fog, feeling groggy or slow in the morning.
Low acid/poor digestion pattern: early fullness, belching, undigested food in stool, feeling of food sitting in your stomach, reflux (often mistaken as “too much acid”).

How to solve SIBO holistically (and keep it away)

Obviously solving SIBO is very individualized based on personal root cause drivers, but here is a generalized ideas of what can help.

Phase 0 — Calm & Safety (Adrenals)

Breakfast within 60 minutes of waking; protein at every meal.
Two slow breaths before meals; eating when calm.
Morning light 5–10 minutes, gentle walk after meals.
Sign you are improving: steadier energy, fewer 2–4 a.m. wakes, less meal related anxiety or fatigue.

Phase 1 — Rhythm & Blood Sugar

3–4 hour meal spacing (no constant grazing so the MMC can work).
Balance plates (protein + cooked veg + good fats).
Track blood sugar 3–5 days with meter or continuous glucose monitor. Check pre meal glucose and 1-hr or 2-hr after eating.
Signs you are improving: fewer energy crashes, calmer gut within 60–90 min after meals.

Phase 2 — Flow (Liver/Bile)

Add bitter foods (arugula, dandelion, radicchio), lemon or herbal bitters before meals.
Moderate fat portions; add a 10-minute post-meal walk.
If fatty foods trigger nausea/pale stools, ask your clinician about bile support or gallbladder evaluation.
Signs you are improving: 1–2 easy bowel movements per day, less post-meal heaviness/bloat.

Phase 3 — Spark (Thyroid/Metabolic Pace)

Get morning sun (go outside for 10 minutes), realistic self pacing, adequate protein + minerals (esp. selenium and magnesium). Iodine when appropriate.
Get full thyroid panel including freeT3, TPO, reverse T3. Discuss thyroid labs with a functional clinician. We go over self order labs, interpretation and thyroid home checks in the Self Healing Body program.
Signs you are improving: warmer hands/feet, clearer AM focus, stool regularity, better energy and mood.

Phase 4 — Digest & Defend (Stomach Acid/Enzymes)

Chew thoroughly; avoid chugging water with meals.
Get enough good salt (sodium) and zinc in your diet.
Consider ginger or bitters pre-meal; alginate at night if refluxy.
Betaine HCl/enzymes only with clinician guidance (skip if there is gastritis, ulcers/active reflux/taking NSAIDs).
Signs you are improving: less upper bloat/belching, more protein and carb tolerance.

Phase 5 — Target the Overgrowth (if still needed)

This is where antimicrobials or antibiotics can shine—after terrain is improved.
Pair with a prokinetics during and for 6–12 weeks after treatment to protect gains.
- Use a gentle, time-limited diet (e.g., modified low-FODMAP or SIBO-friendly) to reduce symptoms, then re-introduce fibers to build resilience.

Phase 6 — Reseed & Resilience

Slowly expand fiber diversity (cooked first): pectin foods (apple, citrus, carrots, beets), oats and legumes as tolerated.
Consider PHGG (partially hydrolyzed guar gum). Go slow if you’re sensitive—often well-tolerated and motility-friendly.
Keep the foundations: sleep, light, movement, boundaries, meal rhythm.

Testing smarter

You don’t need to run a lot of tests to address SIBO but you do need a SIBO breath test and retesting is recommended. If you still feel stuck find out if h. pylori is the bottleneck, or use a mineral test to measure the status of your adrenal, thyroid, liver function, as well as nervous system and blood sugar balance.

Confirm SIBO with a breath test for both hydrogen and methane. And retest after antimicrobials. I can help with ordering an in home/mail in SIBO test.
Check H. pylori if reflux/low acid signs are present. GI Map is the best test for this and the most accurate. I can help you order an in home/mail in GI Map stool test.
Consider blood tests that show full thyroid panel if you suspect thyroid issues. Also test iron/ferritin, B12, and liver markers. These blood tests should be easy to self order or ask your doctor.
Use Hair Tissue Mineral Analysis test to measure the function of the adrenals, liver, thyroid, nervous system, blood sugar, hormones and immune strength. Mineral trends both show and influence stomach acid, bile flow, and stress rhythm.

Quick start (7 days)

Eat within 60 minutes of waking; anchor protein at each meal.
5–10 minutes morning light + 10-minute post-meal walk.
3–4 hour meal spacing; two slow breaths before meals.
Bitters before dinner; ginger tea 90 minutes after.
Avoid screens 60 minutes before bed; sleep on left-side sleep if refluxy.

Why this keeps SIBO away

You’re no longer just suppressing bacteria—you’re fixing the terrain they grew in: stress rhythm, bile flow, stomach acid, thyroid pace, and motility.

When those foundations hold, the small intestine becomes a place where overgrowth can’t easily re-establish. You finally have the upper hand over SIBO, but it takes more than killing herbs. Start with lifestyle adjustments and deeper investigation through testing if you feel stuck.

This post is educational only; not medical advice. If you’re on PPIs/H2 blockers or other prescriptions, don’t change them without your clinician.

If you want help mapping YOUR biggest block and sequencing the steps, I can walk you through this inside my program—starting where YOUR body needs it most.