Michael Greger: Use Fiber to Burn Calories in Your Sleep with an Intestinal Workout
Peer-Reviewed Research
Key Takeaways
- Eat high-fiber foods to trigger the “ileal brake” effect, which naturally reduces appetite by signaling fullness earlier.
- Prioritize whole fiber sources (like fruits, vegetables, legumes) over processed low-fiber foods to stimulate stronger intestinal muscle contractions.
- Aim for long-term fiber-rich diets to boost calorie burning by ~50 calories/day, even during sleep, due to increased gut activity.
- Replace fiber-depleted foods (e.g., apple juice, white bread) with fiber-dense alternatives to provide resistance for intestinal “workouts.”
Notable Quotes
“Our gut can be sedentary too. But if we eat lots of fiber-rich foods, we can be asleep and our gut will still be exercising all night long.”
Bottom Line
Increase daily fiber intake from whole foods to enhance calorie burning, improve gut motility, and support weight management passively—even while sleeping.
Explore More
- Michael Greger’s Full Protocol — supplements, dosages, and daily routine
- Compare All Protocols — side-by-side protocols
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Medical Disclaimer
This article is for informational purposes only and does not constitute medical advice. The research summaries presented here are based on published studies and should not be used as a substitute for professional medical consultation. Always consult a qualified healthcare provider before making any changes to your health regimen.
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