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The case report of a 60-year-old man acquiring a nut allergy via liver transplant is concerning. This man received his new organ from an unfortunate 15-year-old boy who died as a result of ingesting peanuts, to which he was fatally allergic.¹ This raises a concern about screening a more ordinary allograft: blood transfusions.

Current blood donor guidelines do not include a dietary history for the most allergic foods such as fish, nuts, peanuts, shellfish, and wheat in adults and egg, fish, milk, peanuts, and soy in infants and children.² Blood transfusion–induced reactions do occur.³ One major tertiary care facility reported an overall transfusion reaction rate of 2.1%.⁴

The suspicion that food allergens can be culpable has its origin from an article published in 1942.⁵ At that time, one medical treatment of hyperemesis gravidarum included injections of blood from the patient's husband. Hughes and Martin⁵ describe a woman with a medical . . . [Full Text of this Article]

Miriam Erick, MS, RD
Boston, Mass