Food allergy is an immune reaction to dietary ingredients and may cause skin, ear or digestive signs. It cannot be confirmed from symptoms or a commercial test alone.
Home care
Feed only the trial diet; treats, chews, flavoured medicines and scavenged food can invalidate results. Keep a symptom diary.
Prognosis
Signs are often well controlled once triggers are identified, though pets with environmental allergy or chronic intestinal disease may need additional care.
Summary
An elimination trial is a diagnostic test, not simply a new food. Precision and a final challenge make the result meaningful.
Overview
Food allergy is an immune reaction to dietary ingredients and may cause skin, ear or digestive signs. It cannot be confirmed from symptoms or a commercial test alone.
Symptoms
Year-round itch, repeated ear inflammation, licking, vomiting, diarrhoea, soft stool or increased bowel frequency may occur in different combinations.
Causes
Proteins the pet has eaten can become triggers. Food intolerance can produce similar digestive signs without the same immune mechanism.
Risk Factors
Any breed or age can be affected. Previous exposure is required, so a familiar ingredient is not automatically safe.
Diagnosis
A strict veterinarian-designed elimination diet followed by controlled challenge with the previous food is the accepted diagnostic approach.
Treatment Options
Long-term care excludes confirmed triggers using a nutritionally complete food while secondary skin, ear or intestinal disease is treated.
Recovery
Signs are often well controlled once triggers are identified, though pets with environmental allergy or chronic intestinal disease may need additional care.
Prevention
There is no proven way to prevent food allergy. Accurate diagnosis prevents unnecessary restriction and repeated food changes.
When to Contact a Vet
Arrange assessment for recurring itch, ear trouble, vomiting, diarrhoea or weight loss rather than starting a highly restrictive diet alone.
Frequently Asked Questions
Are grains the usual cause?
Not necessarily. Animal proteins are frequent triggers, and grain-free food does not diagnose allergy.
Do blood or saliva tests diagnose food allergy?
They are not considered reliable enough to replace an elimination diet and challenge.
How long does a diet trial take?
The veterinarian sets the period according to the signs, diet and response; skin signs usually require longer assessment than digestive signs.
