You can be allergic to peanuts but not allergic to tree nuts, however if you are allergic to tree nuts the possibility of being allergic to peanuts vastly increases. Least this is what we were told. That probably doesnt answer your question though huh? lol. Id ask the dietician you will see especially if they are in conjunction with your allergy clinic. We were tested for a long list of allergens both times, including non food ones. We had hoped to eliminate a few allergies when we went back the last time for follow up but ended up adding over a dozen more