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Food & Digestion

Make sense of meals, ingredients, and digestive experiences without turning every food into a suspect.

A clearer starting point

Get familiar with the details.

Make sense of meals, ingredients, and digestive experiences without turning every food into a suspect. Start with one question, then follow the connections that help you understand your own observations.

  • Food and symptom diaries
  • Food intolerance
  • Fiber and nutrition
  • Food-specific questions

10 guides

Food diaries and food–symptom patterns

9 minute read

Can You Suddenly Develop a Food Intolerance?

Can you suddenly develop a food intolerance? Yes, at any age. Learn the real causes, from lactase decline to gut infections, and how to check what changed.

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9 minute read

How Long After Eating Do Food Intolerance Symptoms Start?

How long after eating do food intolerance symptoms start? Usually a few hours, sometimes the next day. See timing by cause and how to trace delayed symptoms.

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9 minute read

Elimination Diet Tracker: How to Log Each Phase

Use this elimination diet tracker method to log baseline, elimination and reintroduction, read your results honestly, and know when you need a dietitian.

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8 minute read

Food Diary for Acid Reflux: How to Find Your Triggers

A food diary for acid reflux should track meal timing, size and lying down, not just foods. See what to log, a sample week and how to spot heartburn triggers.

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10 minute read

Food Diary for Food Intolerance: What to Record and Why

A food diary for food intolerance only works if it captures ingredients, timing and dose. Here's what to record, hidden sources to watch, and a sample log.

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9 minute read

Are Food Intolerance Tests Worth It? What a Diary Shows

Are food intolerance tests worth it? Allergy societies advise against IgG panels. See which tests are valid, what a food diary shows instead, and a better plan.

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11 minute read

Food and Symptom Diary Example: A Filled-In Week

See a food and symptom diary example: a filled-in 7-day log with meals, symptoms, stool and context, plus a step-by-step method for reading it without guessing.

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10 minute read

Food and Symptom Correlation: Real Pattern or Coincidence?

Food and symptom correlation in a diary can be real or coincidence. Learn a simple counting method, a 6-point pattern scorecard and the confounders to rule out.

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9 minute read

How to Identify Food Triggers: A 14-Day Method

How to identify food triggers for bloating, gas or loose stools: a 14-day food and symptom method, how long to keep a food diary, and what to do with results.

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8 minute read

Photo Food Diary: Why It Works and What a Photo Misses

A photo food diary is the fastest way to log meals for gut symptoms. Here's what the research says, what a photo misses, and 7 rules for photos you can use.

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