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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
Issues31SubscribersRead digestivedata.substack.com

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Latest Issues

Recent posts by this newsletter. Browse the email archive.

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...

17 days ago
17
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...

25 days ago
8
0

The Invisible Economics of Gut Health

Most people don’t call in sick for bloating, fatigue, or brain fog. They just show up and underperform. That invisibility is exactly what makes digestive instability so expensive. It doesn’t look like a crisis, but it compounds quietly acro...

a month ago
9
2

FPI Update #4: Building the Biological Backbone

Most people have received lab results at some point. A page of numbers, a few flagged high or low, and not much else. Those results are only part of the picture. For many, the gap between what their labs show and what they actually feel is ...

2 months ago
8
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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