The 2 most popular diets and anti-histamines tended to have bigger results in people who reported severe suffering from food intolerances. DAO enzymes and plant-based/vegan diets were an exception… results were roughly the same regardless of severe food intolerance.
The chart includes some treatments which very few people reported results for:
- Other antihistamines - 7 in severe, 9 in mild or no food intolerance
- Hydroxyzine - 9/13
- Clarinex - 9/9
Some treatments had decent sample sizes:
- Acrivastine - 25/31
- DAO - 28/18
Data from the Treatment Outcomes survey.