Blood and mucus in your baby's diaper can signal FPIAP, a non-IgE food allergy affecting the colon. Unlike classic allergies, FPIAP causes delayed reactions 6-48 hours after trigger foods, making it hard to identify without systematic tracking. This comprehensive guide covers symptom recognition, elimination diet strategies, breast milk protein transfer timing, and the encouraging prognosis that many babies achieve tolerance by age 1.

As a parent of a food allergic child, finding suitable alternatives to traditional dairy milk can be a challenge.