Dog and Dairy Allergy Symptoms, Diagnosis, and Treatments | by AADG, DVM
- Dr. Gaffud

- Nov 8
- 2 min read

In her article for Honest Paws, Dr. Gaffud details how dairy allergies manifest in dogs, how veterinarians diagnose them, and the practical management options.
Key Takeaways:
A dog dairy allergy refers to an immune-mediated adverse reaction to dairy proteins (especially casein and whey) in milk products.
The symptoms are diverse — common signs include: • Skin problems (itching, rashes, redness, hot spots) • Gastrointestinal upset (vomiting, diarrhea, bloating) • Ear infections (recurring otitis) • Respiratory signs in severe cases (coughing, wheezing) • Behavioral and systemic effects (lethargy, irritability)
It is distinct from lactose intolerance: dairy allergy involves the immune system, whereas intolerance is a digestive enzyme deficiency (lack of lactase).
Diagnosis relies most reliably on an elimination diet trial (removing all dairy sources for a defined period, then reintroducing) rather than over-reliance on blood or saliva antibody tests, which have limitations.
Treatment / management options include: • Strict dairy elimination (checking labels for hidden dairy in foods and treats) • Medications (antihistamines, corticosteroids) for symptomatic relief • In some cases, immunotherapy / desensitization approaches may be explored.
Risks of non-treatment: Chronic GI issues, skin infections, persistent discomfort, malnutrition or weight loss, worsening of secondary conditions (especially skin/ear infections).
Practical tips / cautions: • Avoid all dairy sources (milk, cheese, butter, cream, whey, casein) in foods, treats, supplements. • Monitor your dog carefully after any accidental ingestion, and consult your vet if reactions occur. • Work with a veterinary nutritionist or vet to ensure dietary balance when removing dairy.
This article showcases Dr. Gaffud’s depth of veterinary knowledge in allergy diagnosis and care, reinforcing her strength in writing for pet health audiences and clients looking for expert content.
Disclaimer:
This content was originally commissioned by a client and is republished here for informational purposes only. It does not replace individualized veterinary advice. Always consult your veterinarian before making changes to your pet’s diet or medical regimen.
Keywords:
dog dairy allergy, dog milk allergy, canine dairy allergy symptoms, dairy allergy in dogs, diagnosing dog food allergy, managing dog food allergies



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