01/14/2025
REALLY IMPORTANT FINDINGS HERE - FOLK JUMPING TO RAW / SINGLE PROTEIN DIETS TO FIX A FOOD ALLERGY NEED TO SET THEIR EXPECTATIONS TO LONG...
Rosser produced a number of cool studies in the 90's and early 2000's but this one from '93 eluded me.
He set out to test a variety of home-cooked diets (using real food, imagine! Single protein mixes similar to what we advise today) in 51 dogs with known food allergies.
The primary clinical sign of allergy in all dogs was persistent and nonseasonal pruritic (itchy) skin disease.
Specifically, they wanted to know how long it would take for the symptoms of the "allergy" to dissipate following removal of the protein.
The answer was:
1 to 3 weeks in 13
4 to 6 weeks in 25 dogs
7 to 8 weeks in 10 dogs
9 to 10 weeks in 3 dogs.
10 weeks!!!
Who gives it 10 weeks?!
Very few.
This is the problem. Folk want the quick fix. 75% of dogs took longer than 3 weeks to get better. Most would have given up after a week or two, back on to the meds.
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Rosser (1993). Diagnosis of food allergy in dogs. J Am Vet Med Assoc, 15;203(2):259-62.