Reviews
Summary
Positives
- DAO supplements have their clearest role in histamine-intolerance or MCAS-style Long COVID, where patients use them around meals to reduce food-triggered flares. Reddit.
Negatives
- Some patients describe DAO as only a temporary symptom blocker, and others report no meaningful improvement despite using NaturDAO alongside antihistamines. Reddit.
Hurdles & Side Effects
- Timing and food context matter: patients compare meal-time DAO capsules, low-histamine diets, and food-sourced DAO such as kidney or liver rather than treating it as a general daily supplement. Reddit.
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