Mid-Week Mini: Your Fresh Stomach Lining
In this week’s Mid-Week Mini Episode, we talk about how quickly you grow a new stomach lining!
Your stomach replaces its entire lining every three to four days.
Which sounds fake.
And alarming.
The inside of your stomach is one of the most hostile environments in your entire body. It’s basically a biological acid bath. Stomach acid is strong enough to dissolve metal. It’s powerful enough to break down bone. And if your stomach lining didn’t protect you, your stomach would quite literally digest itself.
So instead of trusting a single layer to hold the line forever, your body does something wild. It constantly replaces it.
Every three to four days, the cells lining your stomach are brand new. Not repaired. Not patched. Replaced. Fully swapped out like a hotel towel you didn’t even realize housekeeping came in and changed.
The reason is simple. That acid is brutal. Even with protective mucus and specialized cells, the damage adds up fast. So your body runs the fastest cellular turnover program it has. New cells are made at the bottom of tiny stomach glands, then pushed upward, where they do their job, take a beating, and are eventually shed into the stomach itself.
Which means yes – you regularly digest pieces of your own former stomach lining. Cool. Totally fine. Nothing to worry about.
This constant rebuild also explains why things like stress, heavy drinking, or certain medications can cause stomach problems so quickly. If something interferes with that rapid renewal process, the acid doesn’t wait politely. It gets to work immediately.
And here’s the part I love.
You could eat something spicy, stressful, greasy, or questionable on a road trip, and within days, the very surface that dealt with it is gone. Replaced by a fresh layer that has no memory of what you did to it.
Emotionally relatable, honestly.
Your skin takes weeks to renew. Your bones take years. But your stomach? It’s on a weekly reset schedule like it’s clearing its browser history.
So the next time someone tells you your stomach gets a new lining every few days, you can confidently say, “That sounds fake.”
Because the internet says it’s true.
The Internet Says It’s True Book: https://amzn.to/4lNy2oQ
Review this podcast at https://podcasts.apple.com/us/podcast/the-internet-says-it-s-true/id1530853589
Bonus episodes and content available at http://Patreon.com/MichaelKent
For special discounts and links to our sponsors, visit http://theinternetsaysitstrue.com/deals
Listen to TONS of bonus content including:
• Unedited videos of guest interviews and quizzes
• BONUS Episodes
• Giveaways and swag
• Special Shoutouts
• Producer Credits
Sign up to access all of it today!
FATCO sells organic & responsibly-made tallow-based skincare products. For centuries, humans used tallow in skin moisturizers and healing balms, but unfortunately, the topical application of these fats seemed to stop around the same time that animal fats stopped being considered part of a healthy diet. Get 15% off by using my promo code: INTERNET or click HERE.
What if your kid could open a box… and step into another century?
With History Unboxed, they can! Each month, a new time-traveling adventure arrives at your doorstep—packed with hands-on projects, stories, recipes, and learning has never been more fun.
No screens. No boring textbooks. Just immersive, age-appropriate fun that makes history stick. Used by families, homeschoolers, and educators across the country, History Unboxed makes the past come alive with every box.
So if your child loves to ask “why?” and “what was it like?”, this is the perfect way to fuel that curiosity.