You’ve probably heard the term “leaky gut” thrown around online. Maybe you’ve even Googled it at 11pm after another night of bloating, fatigue, and wondering why you feel so off despite eating “pretty well.”
Here’s the thing: leaky gut is real, it’s common, and it’s almost never the whole story on its own. It’s usually a sign that something else is going on — and your gut is doing you a favour by waving the flag loudly.
Let me break it down.
What Is Leaky Gut, Actually?
Your gut lining is one cell thick. One single layer of cells stands between what you eat and your bloodstream. When that lining is healthy, it acts like a really good bouncer — letting nutrients through and keeping everything else out.
Leaky gut (technically called intestinal hyperpermeability) is what happens when that tight barrier starts to loosen. Gaps form between cells, and things that shouldn’t get through — undigested food particles, bacteria, toxins — start slipping into the bloodstream. Your immune system sees them, panics, and fires up an inflammatory response.
That response can show up anywhere. Your skin. Your joints. Your hormones. Your brain. That’s why leaky gut doesn’t always feel like a gut problem.
What Are the Signs?
There’s no single “leaky gut symptom.” That’s part of what makes it tricky. But common patterns I see include:
– Bloating, particularly after meals
– Food sensitivities that seem to be multiplying
– Skin conditions like eczema, acne, or rosacea that won’t budge
– Fatigue that doesn’t improve with rest
– Brain fog
– Hormonal imbalances
– Mood issues — anxiety, low mood, irritability
– Autoimmune flares
If you’re ticking several of these boxes and nobody has been able to tell you why, your gut barrier is worth investigating.
What Actually Causes It?
Leaky gut doesn’t just happen. It’s usually driven by a combination of factors that wear down that gut lining over time:
– Dysbiosis — an imbalance in your gut bacteria. The wrong bugs in the wrong ratios release compounds that irritate and erode the gut lining.
– Chronic stress — cortisol is directly damaging to the gut barrier. This is the gut-brain connection in action.
– A diet low in fibre and rich in processed food — your gut lining literally feeds on the short-chain fatty acids produced when gut bacteria ferment fibre. No fibre = starving your lining.
– NSAIDs and certain medications — taken regularly, these can compromise barrier integrity.
– Alcohol — even moderate amounts increase gut permeability over time.
How Do We Test For It?
Here’s where it gets interesting. Rather than guessing, I use functional pathology testing — specifically, markers like secretory IGA (your body’s first line of immune defence) and calprotectin (an inflammatory marker) to get a real picture of what’s happening.
A Complete Microbiome Mapping test gives us a full landscape of your gut bacteria, identifies pathogens or overgrowths, and shows us exactly what we’re working with. No more “it’s probably just IBS” — we get actual data.
What Does Leaky Gut Treatment Actually Look Like?
This is the part I enjoy most, because results are genuinely achievable with the right approach.
It starts with food. A plant-heavy, fibre-rich diet isn’t a vague wellness recommendation — it’s medicine for your gut lining. Dark leafy greens, legumes, whole grains, fermented foods, and a wide variety of colourful vegetables feed the beneficial bacteria that produce the compounds your gut lining needs to repair.
Then we add targeted support. Depending on your test results, this might include herbs and nutrients that directly repair the gut lining (think glutamine, zinc carnosine, specific demulcent herbs), antimicrobials to address dysbiosis or pathogens, and probiotics chosen for your specific microbial landscape — not just whatever’s on the shelf at Chemist Warehouse.
We also address the drivers. If stress is a major factor, we work on that directly. If you’re eating a diet that’s actively harming your gut, we change that first.
The Bottom Line
Leaky gut treatment isn’t about buying a gut health powder from Instagram. It’s about understanding why your gut barrier is compromised, getting the right testing to confirm it, and then systematically addressing the root causes.
The good news? The gut is remarkably good at healing when you give it the right conditions.
If you’ve been struggling with unexplained symptoms — digestive, hormonal, skin, mood — and nobody has looked at your gut seriously, it’s worth getting to the bottom of it.
Ready to start? Book an initial consultation at insideoutclinic.com.au and let’s find out what’s actually going on.
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AUTHOR BIO (add to author box if your theme supports it):
Jo Gibson is a Clinical Naturopath, Nutritionist, and Herbalist specialising in gut health, hormones, skin, and mindset. Inside Out Clinic operates online Australia-wide.