Quote Originally Posted by Dogmomx2
. Bobo was at the vet about a month ago and had a workup when he was vomiting the other food and it was suggested a possible food allergy.
Go back to the Vet and suggest they look again for protozoan type parasites- not always easily found. Ask them if a short term course of metronidazole might be worth a try? It also has an anti-inflamatory action on the intestinal lining. That's an easy try.

The fact your dog was nauseated once before on a different diet, and is now behaving as though it is feeling nauseated by its anorexia would suggest something other than a food allergy is going on. Another easy try is to ask the Vet about using an acid blocker for a month, with the idea your dog may have the beginning of an ulcer. I would suggest that you discuss with your Vet using Cimetidine 400 mg 2X daily, or Prilosec 1 mg/kg, but alas on this forum people get excited if one mentions specific dosages. So I better not mention such things.

If you want to keep exploring food allergies, then ask the Vet for a specific hypo-allergenic dog food that can be tried for a short period of time or a couple of months. Again it seems strange all was well, and now all of a sudden the dog becomes anorexic on various food tries.

As for enzymes, one should first have the pancreatic enzyme levels checked by the Vet. Most enzyme insuffiencies results in diarrhea that appears greasy due to undigested fat. Note: When low pancreatic enzymes are diagnosed the Vet will usually prescribe a prescription enzyme preparation such as Viokase-V, or Pancreazyme. The cost is somewhere between $60-100 per month. What should one think if they run across a web site advertising an enzyme supplement for $20 a bottle? You get what you pay for- including nothing.

In summary you need to complain to the Vet that their guess of food allergy needs to be revisited.