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IBS vs. SIBO vs. Dysbiosis: What’s Actually Causing Your Gut Symptoms?

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You’ve cut out gluten. Tried dairy-free. Maybe even done low-FODMAP. You’ve added probiotics, cleaned up your diet, and still… the bloating, cramping, and unpredictable digestion keep coming back.

If that sounds familiar, the issue may not be what you’re eating. It may be that no one has looked closely enough at why your gut is reacting in the first place.

As a functional nutritionist specializing in gut health, this is one of the most common patterns I see—especially among active, health-conscious individuals here in Park City. You’re doing everything “right,” but still not feeling your best.

Often, the missing piece is understanding the difference between three commonly confused conditions: IBS, SIBO, and dysbiosis.

Why It’s So Confusing

These conditions share many of the same symptoms:

  • Bloating after meals
  • Gas or abdominal pressure
  • Constipation, diarrhea, or both
  • Food sensitivities that seem to keep changing
  • Fatigue or brain fog

Because the symptoms overlap, many people are given a general diagnosis—often IBS—without a clear explanation of what’s actually driving their symptoms.

IBS: A Label, Not a Root Cause

IBS (Irritable Bowel Syndrome) is one of the most common digestive diagnoses. But here’s the key: IBS describes symptoms, not the underlying cause.

It’s often the diagnosis you receive when testing comes back “normal,” but you’re still experiencing discomfort. For many people, IBS is just the starting point—not the full picture.

SIBO: Bacteria in the Wrong Place

SIBO (Small Intestinal Bacterial Overgrowth) occurs when bacteria grow where they shouldn’t—in the small intestine. This can lead to:

  • Bloating shortly after eating (often within 30–90 minutes)
  • Gas that worsens with foods like garlic, onions, or beans
  • Nutrient absorption issues
  • Fatigue or brain fog

Many people diagnosed with IBS actually have underlying SIBO or another microbial imbalance contributing to their symptoms.

Dysbiosis: A Broader Gut Imbalance

Dysbiosis refers to an imbalance in the gut microbiome—the ecosystem of bacteria, fungi, and other microbes in your digestive system.

Unlike SIBO, which is location-specific, dysbiosis can affect the entire gut and often shows up as:

  • Ongoing bloating and irregular digestion
  • Expanding food sensitivities
  • Low energy or fatigue
  • Skin issues or immune challenges

Because the gut influences everything from immunity to mood, these symptoms don’t always feel “digestive”—but they often trace back to the gut.

Why Diet Alone Isn’t Enough

Elimination diets can provide short-term relief, but they don’t address the root cause. Over time, many people find themselves avoiding more and more foods while symptoms persist.

When you feel like you’ve tried everything, it’s usually not about trying harder—it’s about getting better information.

The Next Step: Clarity, Not Guesswork

Functional stool testing is one of the most effective ways to understand what’s happening in your gut. It evaluates microbial balance, digestion, inflammation, and immune activity—giving us a clear roadmap for healing.

From there, we can create a personalized plan that supports your gut without unnecessary restriction.

If you’re tired of managing symptoms and ready to understand what’s actually going on, there is a next step. Visit my website to learn more or schedule a free Discovery Call—because your gut isn’t random, and neither is the solution.

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