Sourdough and Your Gut
Like Duolingo, but for Sourdough and Your Gut. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
For the part of you with thirty open tabs that never became anything.
A short one: 9 levels across 2 sections, about 18 minutes end to end, roughly 4 days at five minutes a day. It moves through The Sourdough Advantage and The Biology of the Loaf. It starts from scratch.
Free forever · No credit card · iPhone & Android

Key ideas in Sourdough and Your Gut
- Long fermentation allows microbes to break down gluten and complex proteins before you eat them
- Commercial bread rises too fast for this 'pre-digestion' to occur
- Pre-broken-down proteins require less work from your digestive system
- Organic acids in sourdough slow down the conversion of starch into glucose
- A lower glycemic index means energy is released more steadily into the bloodstream
- Phytic acid in grains normally binds to minerals and prevents absorption
- The low pH (acidity) of sourdough neutralizes phytic acid
- Long fermentation allows microbes to break down gluten and complex proteins
- Neutralizing phytic acid 'unlocks' the minerals for your body to use
- Exopolysaccharides are created by sourdough bacteria during long rises
- How sourdough improves mineral availability
- The 'sour' in sourdough comes from the same bacteria found in fermented dairy
- Lactic acid bacteria are responsible for both the flavor and the preservation of the bread
- Recognition of the unique compounds that aid gut health
- Connecting the flavor of sourdough to its microbial source
- The starter is a living community of yeast and lactic acid bacteria
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives Sourdough and Your Gut the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
Why doesn't regular store-bought bread get 'pre-digested' like sourdough does?
Get it right to open this lesson and 8 more in the app.
Where Sourdough and Your Gut takes you
Discover why sourdough is more than just a trendy loaf. Learn how the ancient art of wild fermentation transforms simple flour into a gut-friendly powerhouse that changes how you digest bread.
- 1
The Sourdough Advantage
- Why Sourdough Feels Different
- 2
The Biology of the Loaf
- The Microbes in Your Kitchen
- Identifying Real Fermentation
2 sections · 3 units · 9 levels. Built to play, not to enroll.
You pick the voice
Sourdough and Your Gut is taught in the Explain Like I'm 5 style: no big words. promise.. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
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Start Sourdough and Your Gut today.
Download Tomo, search Sourdough and Your Gut, and play your first lesson in under a minute.