Eggs typically clear from breast milk within 1-6 hours after consumption, though traces may persist longer. Eggs are not considered a highly allergenic substance that accumulates in breast milk the way some other foods might. When a nursing parent eats eggs, the proteins and other compounds enter the bloodstream and can pass into milk, but this process is relatively quick. Most intact egg proteins are too large to easily transfer into breast milk; instead, it's smaller protein fragments and potential allergens that may pass through. For infants with egg allergies, sensitivity to maternal egg consumption typically manifests within 2-4 hours of feeding, though reactions can sometimes be delayed. If a breastfeeding parent suspects their baby has an egg allergy and wants to test whether eggs in their diet are triggering symptoms, elimination for 1-2 weeks followed by reintroduction can help identify the connection. It's important to note that eggs pass through breast milk in small quantities—most babies with egg allergies can safely breastfeed while the nursing parent eats eggs, as the amount of allergen transferred is generally minimal. If a baby shows signs of allergy (rash, vomiting, diarrhea, breathing difficulty), consulting a pediatrician is important to determine whether egg avoidance by the nursing parent is necessary for that individual child.