Astroboy if you've got known food issues there might not be more to find, but my advice is if you are going to do the RPA diet then bite the bullet and go all out from the start - their "strict" option plus dairy and gluten (which is already out I see). They have plans in their book for eliminatig all of these at once. Dairy should be the first on you try to get back, then salicylates, then amines, then the various smaller chemicals. You really want to find a dietician who knows the diet well. If you are in Adelaide or Sydney send me a message and I can suggest dieticians.