You can contact rtechlabs.com to see if they analyze dog foods. When that happened to my pups the 1st time, I found out their food’s ingredients had changed (sourcing) but the label listing stayed the same. Then I did a full allergy panel after a 2nd bout to find out what my pups became intolerant to. After that, I just stopped whatever I was giving them immediately and gave them something else. Of course, each time had a vet visit for testing to make sure it wasn’t anything more serious than food poisoning.
