The Migrating Motor Complex

Gut motility may be the most important and least discussed aspect of health. One vital part of gut motility is the Migrating Motor Complex. The Migrating Motor Complex (MMC) is the gut’s “street sweeper,” clearing food and bacteria to maintain intestinal homeostasis between meals. In this episode, we review its physiology, regulatory mechanisms, and clinical relevance – from SIBO to functional GI disorders – highlighting why this cyclical motility pattern matters for patient care.

Today you’ll meet the migrating motor complex: your gut’s built-in street sweeper that clocks in when you’re not eating. This behind-the-scenes cleaning cycle is essential to GI health!

Today on The Lab Report:

• 3:20 Gut motility – peristalsis and segmentation
• 5:45 Migrating Motor Complex (MMC)
• 8:40 Motilin, serotonin, and the vagus nerve
• 11:15 Acidification of the small intestine and Motilin
• 13:25 Signaling the vagus nerve
• 16:20 MMC’s role in SIBO/IMO
• 17:50 Prokinetics and meal spacing
• 22:00 Question of the Day
  • What is the relationship between PPI’s and MMC?

Additional Resources:

SIBO Breath Test

GI Effects Stool Profile

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