Glossary
Food Intolerance
Updated February 28, 2026
Food intolerance is a dose-dependent digestive response, while allergy includes immune signaling. Keep the distinction clear for safe action.
Distinctions and mechanism
| Condition | Mechanism | Practical signal |
|---|---|---|
| Intolerance | digestive handling limitation | dose-related GI symptoms |
| Allergy | immune activation | rapid systemic signs |
Elimination then reintroduction
Use controlled blocks to identify thresholds.
| Step | Action |
|---|---|
| 1 | remove suspected food classes for 10 to 14 days |
| 2 | reintroduce one item with measured dose |
| 3 | monitor timing, severity, and context |
Escalation criteria
| Trigger | What to do |
|---|---|
| Persistent symptoms after protocol | seek clinician-guided testing |
| Severe systemic or breath-shortness signs | urgent care pathway |
| Repeated severe GI spikes with multiple foods | evaluate broader protocol with dietitian |
Use lactose intolerance and food allergy tracking for cleaner separation.