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Digestive Data

Ryan Galitzdorfer

Where daily function meets data. Personalizing the behavioral changes that most improve how people feel and perform.

Platform
Substack
PricingOnly free issuesPublishesWeekly
Issues33SubscribersRead digestivedata.substack.com

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Latest Issues

Recent posts by this newsletter. Browse the email archive.

The Missing Model in Gut Health

For years, the gut-brain connection lived in the gray zone between intuition and science. Feeling the “butterflies” before a big presentation. Mental flatness that follows a flareup. Fatigue and poor concentration after a huge meal. Easy to...

14 days ago
10
6

FPI Update #6: Finalizing the Outcome Layer

Over the last three months, this series has been building toward a personalized behavioral health system. The goal is to build an algorithm capable of identifying the top changes people can naturally make to improve how they feel compared t...

24 days ago
11
0

The Circadian-Gut Connection

Sleep quality and gut health are two of the most researched areas in behavioral medicine, yet the relationship between them gets surprisingly little attention. Most guidance treats them independently. Take something for sleep. Watch what yo...

a month ago
20
7

FPI Update #5: Mapping the Nutritional Layer

Most nutritional data stops where the interesting questions begin. Calories get counted, macros occasionally, and not much else. What often gets ignored is meal timing, food sourcing, nutrient density, and the reality that most people's die...

a month ago
9
0

Authors

The writers behind this newsletter.

  • Ryan Galitzdorfer

    Building a behavioral system that identifies what most improves how people feel, function, and perform. Grounded in lived experience and a belief in personalized, data-driven insight.

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