Every time I talk about SIBO, the same question comes back. “Where do I even start?”
Because you’ve read 40 blog posts. You’ve been told to go low FODMAP, then told low FODMAP is dangerous. Someone said rifaximin. Someone else said herbs. And yet someone else said it’s all in your head.
I relapsed with SIBO more than once. Not because I wasn’t trying hard enough. Because I was doing steps 3 and 4 while completely skipping steps 1 and 2.
Order matters more than intensity.
Here are the 5 steps, in the order I’d run them.
How to Heal SIBO: 5 Steps to Start (From Someone Who Did)
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What is SIBO?
SIBO stands for small intestinal bacterial overgrowth. Bacteria that belong mostly in your large intestine set up shop in your small intestine, where they aren’t supposed to live in large numbers.
Those bacteria eat your food before you do. They ferment it. Fermentation makes gas. Gas makes bloating, pain, distension, and the food reactions that seem to multiply every month.
In one Johns Hopkins referral practice, 396 patients were tested for suspected SIBO and 251 of them, 63.4%, tested positive.1 That’s a referral population, so the number runs high. But it tells you something: when a woman shows up bloated and dismissed, SIBO is on the table more often than most people assume.
Here’s the part that changes everything about how you treat it.
SIBO is a downstream problem. Something upstream let the bacteria in. Low stomach acid. Slow motility. Adhesions. A previous food poisoning. Until you deal with the upstream cause, you can kill the overgrowth and watch it come right back.
The 5 steps at a glance
| # | Step | What to do | Support |
|---|---|---|---|
| 1 | Steady your digestion | Digestive enzymes with meals. Betaine HCl with high-protein meals. Break food down before bacteria get to it. | Break Down + Increase Now |
| 2 | Support your motility | Space meals 90+ minutes apart so the Migrating Motor Complex can run. Add magnesium glycinate. | Move Now |
| 3 | Work on the overgrowth | Herbal antimicrobials on a defined 4-week round with a start and end date. Read the tinospora liver safety note before starting Clear Plus. | Digest Plus + Clear Plus |
| 4 | Feed yourself reasonably | Low FODMAP short-term for symptom relief, then a structured reintroduction. Restriction is measured in weeks, not years. | Reasonable SIBO (310+ food graphics) |
| 5 | Reassess, don’t guess | Judge by symptom stabilization across 2 to 3 weeks plus a breath retest. Decide with data before cutting anything back. | FoodMarble |
Step 1: How do you support digestion with SIBO?
Before you kill anything, help your body break food down.
Two tools do most of the work here.
Digestive enzymes with meals.
Enzymes break protein, fat, and carbohydrate into pieces small enough to absorb in the small intestine. When food isn’t broken down, it moves along intact and becomes bacterial food. Undigested carbohydrate is exactly what feeds an overgrowth.
Betaine HCl with high-protein meals.
Stomach acid is a gatekeeper. Cleveland Clinic notes that low stomach acid, hypochlorhydria, can lead to bacterial overgrowth in the small intestine and problems absorbing nutrients.23
Chronically low stomach acid contributed to chronic slow motility for me personally. It took me years to connect those two.
Break Down covers the enzyme side. Increase Now is Betaine HCl with pepsin, for the acid side.
Get Break Down HERE and Increase Now HERE. Use code AGUTSYGIRL at checkout to save 15%.
Note: Betaine HCl is not for everyone. If you have an active ulcer, gastritis, or you’re on NSAIDs or acid-suppressing medication, talk to your doctor first.
Step 2: Why does motility matter for SIBO relapse?
This is the step people skip. It’s also the step that decided whether my SIBO stayed gone.
For me personally, my main issue with the recurring SIBO was slow motility.
Between meals, your small intestine runs a cleaning wave called the Migrating Motor Complex, or MMC. It sweeps leftover food and bacteria downstream, out of the small intestine. It only runs when you’re fasted. The moment you eat, it stops.
Grazing all day means the sweep never runs.
Two things to change:
Space your meals.
Aim for 90 minutes or more between eating. Water is fine. This one costs nothing and does a surprising amount.
Magnesium.
Magnesium glycinate is my daily. Move Now is magnesium glycinate, and it’s the one I reach for.
Get Move Now HERE. Use code AGUTSYGIRL at checkout to save 15%.
Step 3: Do herbal antimicrobials work for SIBO?
Now, and only now, you address the bacteria.
Here’s the study people cite constantly, and here’s what it actually says.
Chedid and colleagues at Johns Hopkins published a 2014 study in Global Advances in Health and Medicine. Of 37 patients who took herbal therapy for 4 weeks, 17 (46%) had a negative follow-up lactulose breath test, compared to 23 of 67 (34%) of the rifaximin group.
And the rescue arm: of the rifaximin non-responders offered herbal rescue therapy, 8 of 14 (57.1%) had a negative breath test afterward.
The safety difference is worth reading slowly. Adverse effects were reported in the rifaximin arm: 1 case of anaphylaxis, 2 cases of hives, 2 cases of diarrhea, and 1 case of C. difficile.
Now the honest caveat, because you deserve it.
This was a retrospective study, not a randomized trial, and the difference between 46% and 34% did not reach statistical significance (P=.24). The title says “equivalent.” The statistics say “we did not find a difference,” which is not the same claim. No randomized trial has confirmed it.
Even still, I think herbal antimicrobials are a reasonable first move for a lot of women. I don’t think that study proves what most blogs say it proves.
Run a defined 4-week round. Not open-ended. A start date and an end date.
Get Digest Plus HERE and Clear Plus HERE. Use code AGUTSYGIRL at checkout to save 15%.
One safety flag on Clear Plus
Clear Plus contains tinospora, also called guduchi or Tinospora cordifolia. There is a documented signal for liver injury with tinospora, reported in case series out of India in people using it for extended periods.
This is not buried in a footnote for a reason. If you have any liver condition, take medication processed by the liver, or plan to use it beyond a defined round, talk to your doctor and consider baseline liver enzymes.
I’d rather you know and decide than not know.
Step 4: How long should you stay on low FODMAP?
Low FODMAP works. That’s the problem.
It works well enough that women stay on it for 2 years, watch their tolerated food list shrink to 14 items, and call that healing.
FODMAPs are fermentable carbohydrates. Removing them removes the bacterial fuel, so symptoms drop fast. Monash University, which developed the diet, teaches it in three phases: restriction, reintroduction, and personalization. The restriction phase is meant to run weeks, not years.456
The restriction is the easy part. Reintroduction is where the actual information lives.
Food triggers bloating. Digestive dysfunction causes it. If you never test foods again, you never learn which reactions were the overgrowth and which are truly yours.
Tolerance works like a dial. The goal is the widest diet you can eat without symptoms, and you only find that edge by walking toward it on purpose.
Step 5: How do you know if SIBO is gone?
You’ll be tempted to decide you’re better based on one good week. Or worse, to decide you failed based on one bad day.
Two things to judge by.
Symptom stabilization over time.
Not a single day. A pattern across 2 or 3 weeks. Track it. Bloating, bowel movements, energy, food reactions.
Retesting.
A lactulose or glucose breath test through your practitioner is the standard. FoodMarble is the at-home device I use for trend data between formal tests. It’s not a diagnostic replacement. It’s directional information you can actually collect daily.
Get FoodMarble HERE. Use code GUTSYG to save 15%.
Do this before you cut back on anything. Stopping the antimicrobials, stopping the prokinetic, stopping the enzymes. Decide with data.
Why does SIBO keep coming back?
Clearing SIBO is the beginning. Staying clear is the actual work.
Here’s the number that should shape your whole plan. Lauritano and colleagues followed 80 patients who had successfully cleared SIBO with rifaximin. They retested at 3, 6, and 9 months. Recurrence was 12.6% at 3 months, 27.5% at 6 months, and 43.7% at 9 months.78
Nearly half, back inside a year.
They also found what predicted it: older age, a history of appendectomy, and long-term PPI use. Two of those three are structural or medication issues, which is the whole point. The bacteria came back because the conditions that let them in never changed.
Three things hold it.
Lifestyle is the secret key.
Long-term SIBO healing depends on stress, sleep, and the underlying things you’ve been outrunning. Your MMC is regulated by the same nervous system that responds to chronic stress. I know how that sounds. I resisted it for years. It was still true for me.
Motility stays the priority.
No antimicrobial holds if motility stays broken. Many practitioners keep a prokinetic going for months after a clear test, specifically to prevent relapse.
Tolerance is a dial.
Keep widening. A shrinking food list is a signal, not an achievement.
SIBO questions I get asked most
SIBO can be cleared. Staying clear depends on whether the underlying cause was fixed. Relapse rates run high when motility, low stomach acid, or structural issues are left untreated. That’s a root-cause failure, not a treatment failure.
A single antimicrobial round is 4 weeks. Most people need more than one round plus several months of motility support. I relapsed more than once before it held.
In the 2014 Chedid study at Johns Hopkins, 46% of herbal patients had a negative follow-up breath test versus 34% on rifaximin. That difference was not statistically significant (P=.24), and it was retrospective, not randomized. It’s encouraging, not proof.
No. It’s a symptom-relief tool during treatment. The restriction phase runs weeks, then you reintroduce. A permanently shrinking food list is a signal something upstream is unresolved.
Get tested with a lactulose or glucose breath test through a practitioner rather than self-diagnosing from symptoms. Bloating has many causes. If you do, in fact, have SIBO, you’ll also want to know the type because that matters in the healing efforts as well.
Want to Submit Your Own SIBO Question?
I LIVE FOR answering all your questions. If you want me to add something to this list, simply send it through my CONTACT FORM HERE, and I’ll add ASAP.
Where to go from here
If this article helped and you want the full version, I wrote it.
Reasonable SIBO is my complete plain-language PDF guide to healing SIBO. What’s actually going on, the questions worth asking your doctor, how to think about your options, 310+ food graphics for understanding FODMAPs, and how to fix chronic SIBO.
Not a cure. Not a promise. Honest information so you can stop guessing.
It’s $17 right now, down from $27. [And actually it should be $100+ for all the info it contains.]
And if you want the supplement side handled in one order, the Ultimate Digest Bundle covers steps 1 and 2 together. Get it HERE with code AGUTSYGIRL for 15% off.
You might also enjoy
- The Ultimate Guide to Low Stomach Acid for Women (Hypochlorhydria)
- Constipation vs. Slow Motility: How to Tell the Difference [And Why It Matters]
- Increasing Bowel Motility (10+ Things to Try Today!)
None of this is medical advice. Work with your doctor on these prior to implementing, especially the Betaine HCl and the herbal antimicrobials.
Xox,
SKH
This post contains affiliate links and products I sell.
- https://pmc.ncbi.nlm.nih.gov/articles/PMC4030608/ ↩︎
- https://my.clevelandclinic.org/health/diseases/23392-hypochlorhydria ↩︎
- https://my.clevelandclinic.org/health/diseases/21820-small-intestinal-bacterial-overgrowth-sibo ↩︎
- https://www.monashfodmap.com/ibs-central/i-have-ibs/starting-the-low-fodmap-diet/ ↩︎
- https://www.monashfodmap.com/blog/3-phases-low-fodmap-diet/ ↩︎
- https://www.monashfodmap.com/blog/research-update-long-term-effects-following-personalised-low-fodmap-diet/ ↩︎
- https://pubmed.ncbi.nlm.nih.gov/188/ ↩︎
- https://pmc.ncbi.nlm.nih.gov/articles/PMC3610260/ ↩︎
