“…Transplant‐acquired food allergy was first described in 1997 when a non‐allergic recipient developed de novo peanut allergy three months after receiving a combined liver/kidney transplant from a 22‐yr‐old man who had died of anaphylaxis following accidental dietary exposure to peanut . Transplant‐acquired food allergy was attributed to the passive transfer of donor‐derived stem cells present in the donor liver, as bone marrow transplantation has resulted in similar reports of transfer of food allergy . Subsequently, numerous case reports and single‐center retrospective studies of food allergy following liver transplantation, particularly in the pediatric population, have not been able to find the same relationship between a donor's allergy status and transplant‐acquired food allergy .…”