Pet Food Allergen
Egg Allergy in Dogs and Cats
Egg allergies in pets target the egg white — specifically ovalbumin, ovomucoid, and conalbumin proteins. Egg yolk alone is rarely problematic. Dogs with a chicken allergy often react to whole egg through cross-reactivity with chicken serum albumin.
Prevalence
~4-8% of food-allergic dogs react to egg (Mueller 2016). Cats less frequently.
Label names that contain egg
Any of these on an ingredient list means egg is present.
Cross-reactivity
A pet allergic to egg may also react to: chicken (serum albumin). Cross-reactivity is not guaranteed, but it is common enough that it should inform an elimination diet.
Symptoms that point to egg
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Factual reference based on AAFCO ingredient definitions, FDA guidance, and peer-reviewed veterinary literature cited above. Not medical or veterinary advice. Consult a veterinarian for decisions about your pet's diet.