[Ellie May]

I think the one that is ruled out first should be decided on a case by case basis. Knowing that testing for enviro allergies is more likely to require a dermatologist (if doing skin allergy testing), I'd personally go down the food route first because I'd want to avoid the specialist if possible. And even with a blood test at a regular vet's office - I'd rather not pay hundreds for something that could be food related unless the dog is clearly suffering and medication isn't keeping them comfortable. Then if it's not food, I'd be more than willing to shell out the $$$.

Definitely haven't heard great things about food allergy testing by blood. My board certified vet source says nope on it. Would definitely not do it.