Similar to addressing acute diarrhea, the treatment of chronic diarrhea treatment begins with the same steps described in PHASE 1.
2.3.4.1 Why I never recommend using special "veterinary diets"
Here is a simple answer. Nature has never intended canines to eat dehydrated and processed food that sits on the shelves for months and sometimes years before being fed. When you look at the ingredients list, it includes things like grains, by-products, rendered ingredients, and chemicals that only add to the problem.
Initially, my intention was not to publish or mention any veterinary diets here, but then I changed my mind. It does not take a veterinary degree to see that all of these ingredients are far from dog food as nature intended:
Purina HA Vegetarian, Dry
Corn starch, hydrolyzed soy protein isolate, coconut oil, partially hydrogenated canola oil preserved with TBHQ, powdered cellulose, tricalcium phosphate, dicalcium phosphate, corn oil, potassium chloride, guar gum, salt, choline chloride, magnesium oxide, DL-Methionine, taurine, zinc sulfate, Vitamin E supplement, ferrous sulfate, manganese sulfate, niacin (Vitamin B-3), copper sulfate, Vitamin A supplement, calcium pantothenate (Vitamin B-5), thiamine mononitrate (Vitamin B-1), riboflavin supplement (Vitamin B-2), Vitamin B-12 supplement, garlic oil, pyridoxine hydrochloride (Vitamin B-6), folic acid (Vitamin B-9), Vitamin D-3 supplement, calcium iodate, biotin (Vitamin B-7), menadione sodium bisulfite complex (Vitamin K), sodium selenite. B-2626
Purina HA Chicken Flavor, Dry
Corn starch, hydrolyzed soy protein isolate, partially hydrogenated canola oil preserved with TBHQ, coconut oil, powdered cellulose, tricalcium phosphate, corn oil, dicalcium phosphate, hydrolyzed chicken liver, hydrolyzed chicken, potassium chloride, guar gum, salt, choline chloride, magnesium oxide, DL-Methionine, taurine, zinc sulfate, Vitamin E supplement, ferrous sulfate, manganese sulfate, niacin (Vitamin B-3), copper sulfate, Vitamin A supplement, calcium pantothenate (Vitamin B-5), thiamine mononitrate (Vitamin B-1), riboflavin supplement (Vitamin B-2), Vitamin B-12 supplement, garlic oil, pyridoxine hydrochloride (Vitamin B-6), folic acid (Vitamin B-9), Vitamin D-3 supplement, calcium iodate, biotin (Vitamin B-7), menadione sodium bisulfite complex (Vitamin K), sodium selenite. B-2627
Purina HA Chicken Flavor, Canned
Water sufficient for processing, pea starch, hydrolyzed chicken liver, hydrolyzed soy protein isolate, powdered cellulose, coconut oil, tricalcium phosphate, guar gum, potassium chloride, carrageenan, soybean oil, choline chloride, magnesium sulfate, salt, fish oil, taurine, LThreonine, xanthan gum, DL-Methionine, L-Cysteine, Vitamin E supplement, glycine, zinc sulfate, ferrous sulfate, niacin (Vitamin B-3), Vitamin A supplement, calcium carbonate, calcium pantothenate (Vitamin B-5), thiamine mononitrate (Vitamin B-1), copper sulfate, Vitamin B-12 supplement, manganese sulfate, riboflavin supplement (Vitamin B-2), pyridoxine hydrochloride (Vitamin B-6), folic acid (Vitamin B-9), menadione sodium bisulfite complex (Vitamin K), Vitamin D-3 supplement, potassium iodide, biotin (Vitamin B-7), sodium selenite. A458918
Hill's Prescription Diet z/d - Canine dry
Corn Starch, Hydrolyzed Chicken Liver, Powdered Cellulose, Soybean Oil, Calcium Carbonate, Dicalcium Phosphate, Lactic Acid, Potassium Chloride, Glyceryl Monostearate, Choline Chloride, Iodized Salt, vitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (source of Vitamin C), Niacin Supplement, Thiamine Mononitrate, Vitamin A Supplement, Calcium Pantothenate, Biotin, Vitamin B12 Supplement, Pyridoxine Hydrochloride, Riboflavin Supplement, Folic Acid, Vitamin D3 Supplement), DL-Methionine, minerals (Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Manganous Oxide, Calcium Iodate, Sodium Selenite), Taurine, Mixed Tocopherols for freshness, Natural Flavors, Beta-Carotene.
Hill's Prescription Diet z/d Canine canned
Water, Hydrolyzed Chicken Liver, Corn Starch, Powdered Cellulose, Soybean Oil, Dicalcium Phosphate, Calcium Carbonate, Potassium Chloride, Iodized Salt, Choline Chloride, DLMethionine, vitamins (Vitamin E Supplement, Ascorbic Acid (source of Vitamin C), Thiamine Mononitrate, Niacin Supplement, Calcium Pantothenate, Vitamin B12 Supplement, Pyridoxine Hydrochloride, Biotin, Vitamin D3 Supplement, Riboflavin Supplement, Folic Acid), Potassium Citrate, minerals (Zinc Oxide, Ferrous Sulfate, Manganese Sulfate, Copper Sulfate, Calcium Iodate), Magnesium Oxide, L-Tryptophan, Taurine, Beta-Carotene.
Royal Canin Hydrolyzed Protein Moderate Calorie Dry Dog Food
Brewers rice, hydrolyzed soy protein, chicken fat, dried plain beet pulp, natural flavors, vegetable oil, sodium silico aluminate, fish oil, calcium sulfate, monocalcium phosphate, potassium chloride, salt, calcium carbonate, fructooligosaccharides, taurine, vitamins [DL-alpha tocopherol acetate (source of vitamin E), niacin supplement, L-ascorbyl-2-polyphosphate (source of vitamin C), D-calcium pantothenate, biotin, pyridoxine hydrochloride (vitamin B6), riboflavin supplement, thiamine mononitrate (vitamin B1), vitamin A acetate, vitamin B12 supplement, folic acid], DL-methionine, choline chloride, trace minerals [zinc proteinate, zinc oxide, manganese proteinate, manganous oxide, copper sulfate, ferrous sulfate, sodium selenite, copper proteinate, calcium iodate], marigold extract (Tagetes erecta L.), magnesium oxide, rosemary extract, preserved with mixed tocopherols and citric acid.