Some allergies/intolerances get better or worse after being on the BTD, but it takes some time (and maybe the addition of Deflect) to heal your body. †After about a year on the BTD my husband could again eat dairy (beneficial for him as a B) and also eggs. †I'm still trying to get him to try some grains he's supposed to be able to eat, but he's still afraid of gluten because of what it's done to him in the past. †His body did heal enough, however, to be able to handle the dairy and eggs.
I say they may get "worse" because sometimes your body actually gets more sensitive because now you're not bombarding it with all these problem foods, and it can put more energy into "reacting" to the little problems you still feed it, that you didn't seem to have trouble with before. You're immune system gets suppressed and suddenly it has the strength to fight back. I didn't used to get very sick before the BTD. I'd get little things often, but not anything big. Now I don't get the little colds, but when I do get sick, very occasionally, I get EXTREMELY sick. My body now has the strength to fight.