Small Intestinal Bacterial Overgrowth (SIBO)

published on 16 December 2025

When Your Gut Microbiome Goes Rogue

A simple, science-backed take from Human Performance Health

If your belly feels like it’s inflating after every meal, your gut might be sending you a message. Small Intestinal Bacterial Overgrowth (SIBO) happens when bacteria that belong in the large intestine decide to throw a party in the small intestine instead. The result? Bloating, gas, constipation or diarrhea, brain fog, and feeling “off” after you eat.

Why SIBO Happens

Sometimes your system slows down or shifts out of rhythm, giving bacteria the perfect opportunity to overgrow. Common contributors include:

  • Sluggish gut motility
  • Low stomach acid
  • Stress
  • Past surgeries
  • Thyroid or hormone imbalances
  • High-fermentation foods

At Human Performance, we always look at the whole picture—gut, stress, hormones, metabolism—all connected

How We Approach SIBO

We take a root-cause-first strategy so you can get relief and keep it.

1. Calm the Overgrowth

Providers may use herbal or prescription antimicrobials to rebalance bacteria levels.

2. Reset Your Gut Rhythm

Supporting motility is key. Think prokinetic support, hormone balance, and digestion-boosting routines.

3. Food That Works for You

Short-term dietary adjustments to soothe symptoms, followed by a smart, gentle reintroduction phase.

4. Rebuild + Restore

Probiotics, digestive support, and replenishing nutrients help strengthen your gut for the long run.

When to Connect With Us

If bloating or gut discomfort keeps showing up—especially after meals—your system might be asking for support. Human Performance helps you understand what’s happening, test when needed, and build a gut plan that actually fits your life.

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