Food Hypersensitivity Flashcards
What are non-immunologic reactions to food
food intolerance
idiosyncratic adverse reactions
Pharmacologic reactions
Food poisoning
What is the incidence of Food Hypersensitivity reactions?
Overall not common. Up to 300% of dogs with atopic dermatitis reported to also have food allergy
What are common offending substances to dogs?
Beef, Dairy products Wheat Poultry products Lamb etc.
What are common offending substances to cats?
Beef
Dairy products
Fish
Poultry Products
If an animal is less than 1 year of age and is showing signs of allergies, what would you expect?
Less than a year, lean closer to food
What are Historical features associated with food hypersensitivity reactions?
Seen in dogs and cats at any age
Non-seasonal signs
Generally the animal has been on the same diet for an extended time
Poorly responsive to glucocorticoids
what are physical findings associated with Food Hypersensitivity reactions
May resemble atopy
Dogs:Most common is the increased frequency of defecation
Cats: Non-descript. Facial dermatitis, otitis externa etc.
When should ou recommend food trial vs. allergy testing?
signalment
non-seasonal symptoms
poor response to treatment
Proportionally, if a cat vs dog is showing atopic dermatitis symptoms, what one would have a higher chance of being an Adverse Food Reaction
Cats: ARF are 50-90% of allergy cases
Is allergy testing for foods reliable?
NO this is not a reliable measurement
How do you diagnose (successfully) a food Hypersensitivity reaction?
Food trial
What are hydrolysates
Proteins that are broken down in size to reduce allergenicity.
Some diets are combination of hydrolysates and novel protein diets.
are grain free diets considered hypoallergenic?
no. These are not appropriate hypoallergenic diets.
What is his favorite hypoallergenic diets?
Ultamino for both dogs and cats
How long should a food trial extend?
Dogs: 8 week raises to 90% efficiency
Cat: 8 weeks raise sensitivity to 90%
