[Ellie May]

z/d® ULTRA Allergen-Free Canine
Ingredients
Water, Hydrolyzed Chicken Liver, Corn Starch, Powdered Cellulose, Soybean Oil, Dicalcium Phosphate, Calcium Carbonate, Potassium Citrate, DL-Methionine, Choline Chloride, Iodized Salt, Vitamin E Supplement, Taurine, Ascorbic Acid (source of vitamin C), L-Threonine, Zinc Oxide, Ferrous Sulfate, L-Tryptophan, Beta-Carotene, Thiamine Mononitrate, Copper Sulfate, Manganous Oxide, Niacin, Calcium Pantothenate, Vitamin B12 Supplement, Pyridoxine Hydrochloride, Biotin, Calcium Iodate, Vitamin D3 Supplement, Riboflavin, Sodium Selenite, Folic Acid.

z/d® Low Allergen Canine
Ingredients

Dried Potato Product, Hydrolyzed Chicken Liver, Potato Starch, Soybean Oil (preserved with BHA, propyl gallate and citric acid), Hydrolyzed Chicken, Powdered Cellulose, Calcium Sulfate, Dicalcium Phosphate, Glyceryl Monostearate, Iodized Salt, Choline Chloride, vitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (source of vitamin C), Niacin, Thiamine Mononitrate, Vitamin A Supplement, Calcium Pantothenate, Biotin, Vitamin B12 Supplement, Pyridoxine Hydrochloride, Riboflavin, Vitamin D3 Supplement, Folic Acid), Calcium Carbonate, Potassium Chloride, minerals (Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Manganous Oxide, Calcium Iodate, Sodium Selenite), DL-Methionine, Taurine, preserved with Mixed Tocopherols & Citric Acid, Beta-Carotene, Rosemary Extract.

z/d® ULTRA Allergen-Free Canine
Ingredients

Starch, Hydrolyzed Chicken Liver, Soybean Oil (preserved with BHA, propyl gallate and citric acid), Hydrolyzed Chicken, Powdered Cellulose, Dicalcium Phosphate, Calcium Carbonate, Glyceryl Monostearate, Potassium Chloride, Iodized Salt, Choline Chloride, vitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (source of vitamin C), Niacin, Thiamine Mononitrate, Vitamin A Supplement, Calcium Pantothenate, Biotin, Vitamin B12 Supplement, Pyridoxine Hydrochloride, Riboflavin, Vitamin D3 Supplement, Folic Acid), DL-Methionine, minerals (Ferrous Sulfate, Zinc Oxide, Copper sulfate, Manganous Oxide, Calcium Iodate, Sodium Selenite), preserved with Mixed Tocopherols & Citric Acid, Taurine, Beta-Carotene, Rosemary Extract.


Here are the ingredients for all three Z/Ds.
If this was the "only" thing that worked if my dog had severe allergies, I would probably go with it because if they are itching that much, it is a quality of life issue. This food is unique because the protein is hydrolyzed but there are reports of it not working for some dogs. It looks like liver is the main meat in these and that seems excessive. First, I would try whatever else you can get your hands on.

What foods have you tried so far and how long did you keep them on them?
It is so hard with regular dog food because they are so complex that it is very difficult to find the allergen. Have you looked into the Natural Balance line or the Cal. Natural line (which I'm sure won't work because a lot of it contains rice)? How do you feel about homecooking? Then you can pick a novel protein to start with and a grain they have never had and do your own elimination diet?