The Gut Insiders 03 The Gut Clock ⏰ How Your Morning Routine Shapes Gut Health, Energy, and Inflammation
21 snips
Feb 9, 2026 
Dr. Will Bulsiewicz, a board-certified gastroenterologist and bestselling author known for gut and microbiome science, explains how your morning programs digestion, immunity, and energy. He covers circadian rhythm effects on hormones and microbes. He highlights morning light, gentle movement, timing of coffee, and early fiber as key levers to set your gut clock.
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Microbes Run On A Daily Schedule
- Over half of gut microbes follow circadian rhythms, shifting roles between day and night.
- Daytime microbes focus on fiber fermentation and short-chain fatty acid production for metabolism.
Jet-Lagged Microbes Worsened Mouse Metabolism
- Researchers transplanted stool from jet-lagged humans into normal mice to test causality.
- Mice given jet-lagged microbiomes developed worse blood sugar and gained weight.
Chuck's Night-Shift Health Crash
- Chuck described working erratic early shifts that wrecked sleep, increased coffee, and led to poor food choices.
- He gained weight and experienced the metabolic chaos Will attributes to circadian disruption.
