If you’ve ever been told that your bloating, gas, or unpredictable digestion is because of SIBO, but even after treatment it doesn’t go away, this post is for you.
SIBO — short for Small Intestinal Bacterial Overgrowth — occurs when bacteria that are meant to live in the large intestine start growing in the small intestine instead. This often leads to symptoms like bloating, abdominal pain, constipation or diarrhea, and increasing food sensitivities.
It’s estimated that up to 80% of people diagnosed with IBS may actually have SIBO, which is why so many women are given the same solution: antibiotics, a strict low FODMAP diet, and a long list of foods to avoid.
The problem?
For many women, those approaches offer temporary relief… and then the symptoms come right back.
That’s exactly what happened to my client.
By the time she came to me, she had been told to do another round of antibiotics and stay on a strict low FODMAP diet to manage her SIBO.
She was exhausted — physically and mentally. Her list of “safe foods” kept shrinking, her digestion felt unpredictable, and she was afraid to eat anything outside of her routine.
Before we started working together, she had already tried it all: cutting out more foods, multiple rounds of antimicrobials, gut cleanses, bone broth fasts, greens powders, and probiotics that only made her bloating worse.
She was doing everything she had been told was “right”… yet nothing was actually fixing the problem.
And that’s because SIBO is never just SIBO.
It’s not the root cause — it’s a symptom of deeper dysfunction.
Until you understand why it keeps coming back, you stay stuck in the same cycle of restriction → temporary relief → relapse.
Once we stopped guessing and actually looked under the hood, the full picture became clear.
We ran a GI-MAP stool test along with comprehensive blood labs — and this is where everything started to make sense.
On her GI-MAP, we found H. pylori, a bacterial infection that directly suppresses stomach acid, along with a fungal overgrowth (candida). Both of these findings are incredibly important.
H. pylori is one of the most common drivers of low stomach acid, which means food isn’t being properly broken down in the stomach. When digestion is weak at the top of the gut, food sits longer, ferments, and becomes fuel for bacterial overgrowth in the small intestine — setting the stage for SIBO.

Candida added another layer. Fungal overgrowth often thrives in an environment where digestion is sluggish, minerals are depleted, and blood sugar is unstable. It can worsen bloating, food reactions, brain fog, and cravings — and it’s a sign the gut ecosystem lacks resilience.

Her blood labs revealed another major missing piece: she was hypothyroid. Although her TSH was “in range”, her free T3 (active thyroid hormone) and thyroid antibodies were elevated.
This matters because thyroid function and gut function are deeply connected. The thyroid plays a key role in gut motility — how efficiently food moves through the digestive tract. When thyroid activity is low, digestion slows down, food stagnates, and bacteria have more time to grow where they don’t belong. This is one of the most overlooked reasons SIBO becomes chronic or recurrent.
This combination explained so much of what she had been experiencing — her low energy and fatigue, sluggish digestion with daily bloating, increasing difficulty tolerating foods, and the fact that the more restrictive she became, the worse she actually felt.
At that point, it was clear why antibiotics alone hadn’t worked — and why they never would.
Rather than jumping into another round of antimicrobials, we focused on changing the environment inside her gut.
Because when digestion, minerals, and thyroid function aren’t supported, bacteria and fungi will continue to overgrow — no matter how many protocols you run.
Our plan focused on rebuilding her foundation:
Within weeks, her digestion normalized. Her bloating disappeared. And for the first time in years, she could eat without fear of reacting.
Most conventional SIBO protocols focus on killing bacteria.
But if you never address why the bacteria are thriving — low stomach acid, sluggish motility, mineral depletion, thyroid dysfunction, or chronic stress — the overgrowth simply returns.
That’s why I teach my clients that SIBO is a symptom, not a root cause.
When you rebuild digestion, minerals, and metabolism together, the gut can finally function the way it’s meant to.
You might see yourself in this story if:
If that sounds familiar, it’s a sign your body needs support, not more restriction.
If you’re tired of chasing SIBO protocols that don’t last, it’s time to take a different approach.
To help you start connecting the dots, I created a free resource called the Gut Audit. It walks you through the key systems that influence digestion — like stomach acid, minerals, thyroid, and blood sugar — so you can better understand what’s really going on beneath the surface.
And if you’re ready to go deeper, my 1:1 Well Nourished program is designed to uncover your unique patterns using functional labs like blood work, HTMA, and the GI-MAP stool test — and create a personalized plan that actually works.
👉 Start with the free Gut Audit if you want clarity.
👉 Apply to work with me and my team 1:1 if you’re ready for answers, a plan, and real relief.
You don’t have to keep fighting your gut. When you fix the function, the symptoms finally fade.
Hey, I'm Megan Crozier.
I help women uncover the why behind their symptoms, restore balance to their metabolism and hormones, and finally feel like themselves again.I help women uncover the why behind their symptoms, restore balance to their metabolism and hormones, and finally feel like themselves again.