yes you're right.Sometimes it takes much time to be cured totally, since you don't know the exact cause of your problem.I have red though that a machine called QXCI can detect it accurately.I haven't ever done it, but would be intersted in.
Those foods you refer to, were vorbidden by my naturopath
BIG NO:coffee,alcohol,beverages(carbonated),sauce,fats(highly),salty(highly)such as crackers etc, fried foods, pork, goat meat, salty cheese(had to put it in water before), yellow cheese, processed meat like sauseges etc,cauliflower, broccoli,lentils, beans,pea,radish, grapes, melon water, melon, fresh fruits, onion, garlic,white bread,salt(much) and finally SWEETS9including any sugar)
Almost all the other were OK to consume
but I concluded that I couldn't also eat veal
I usually eat: potatoes, lamb, fresh-water fishes, white meat (meat almost every day)
vegetable soups, puree, blended rice, 2 boiled apples/daily
bovine fat 3TBsp/daily and my vitamins