Pro Plan Veterinary Diets HA Hydrolyzed Protein Salmon Formula Dry Dog Food
Verified Jun 14, 2026
This is a veterinary therapeutic dry diet designed for dogs with suspected or confirmed food allergies or certain digestive issues. It uses hydrolyzed soy protein as the main protein source, with added hydrolyzed salmon for flavor, and relies on a single, refined carbohydrate source (corn starch) to help reduce the risk of triggering adverse food reactions. The formula is complete and balanced for both puppies and adult dogs, including large-breed growth, so it can be used as a long-term sole diet under veterinary supervision.
Nutritionally, this is a well-formulated hydrolyzed protein diet for dogs that need a strictly controlled, low-allergen food, and it is appropriate for both growing puppies and adults, including large breeds. The use of hydrolyzed soy and salmon, along with a single carbohydrate source, makes it a strong option for diagnosing and managing food-responsive skin or gut issues under a vet’s guidance. It’s not intended for healthy dogs without allergy or GI concerns, but for the right patient it can be an excellent long-term maintenance diet.
The KibbleLab Score (1–10) is assessed from publicly available product data. Our evaluation is science-based, not marketing-based.
KibbleLab may earn an affiliate commission when you buy through a link. No one can pay for a higher score, or to change what we recommend for your pet.
At a Glance
KibbleLab Review
Strengths
- Fully hydrolyzed protein sources (soy as the primary protein, plus hydrolyzed salmon) are designed to be much less likely to trigger adverse food reactions in sensitive dogs.
- Single, highly refined carbohydrate source (corn starch) helps limit exposure to potential dietary allergens during elimination or long-term management.
- Complete and balanced per AAFCO for growth and adult maintenance, including large-breed puppies, which is hard to find in therapeutic allergy diets.
- Moderate protein and fat levels with added fish oil and coconut oil provide essential fatty acids and easily utilized energy, which can be helpful for dogs with digestive issues.
Considerations
- Contains soy, which, while hydrolyzed, may still not be ideal for the rare dog with severe soy intolerance as determined by a veterinarian.
- Protein level (20% as-fed) is moderate rather than high, which is appropriate medically but may be lower than some very active or working dogs typically receive; those cases should be managed closely with your vet.
- This formula is specifically designed as a prescription therapeutic diet, so it should be used only under veterinary supervision rather than as a general-purpose food for healthy dogs.
Full Ingredient List
Ingredients and analysis reflect manufacturer data at the time of our last update and can change without notice. Always check the actual product packaging before feeding.
Ingredient filtering helps identify compatible options but is not a substitute for a veterinary elimination diet.
Top 5 Ingredients Explained
01
Corn Starch
Corn starch is a concentrated carbohydrate used in pet foods primarily as a thickener, binder and texture enhancer for kibbles, treats and canned gravies. It supplies digestible calories with minimal protein or micronutrients, so while generally safe for most dogs and cats it can contribute to excess calories and blood‑sugar increases in overweight or diabetic pets and may be a concern for animals with grain sensitivities.
02
Soy Protein Isolate
Soy protein isolate is a concentrated plant-based protein derived from defatted soy and is commonly used in dry and canned pet foods as a protein source, binder and texturizer to boost crude protein and improve kibble structure. It provides substantial protein and some essential amino acids but is generally less bioavailable than animal proteins and low in taurine (a concern for obligate carnivores like cats); some pets may be allergic to soy and soy contains phytoestrogens, though most anti-nutritional factors are reduced during processing, so consult your veterinarian for diets relying heavily on plant proteins.
03
Coconut Oil
Coconut oil is used as a concentrated fat source and palatability enhancer in dog and cat diets, providing medium-chain triglycerides (notably lauric acid) that can be rapidly metabolized for energy and may help support skin and coat condition. Because it is high in saturated fat and calories, coconut oil should be used sparingly and introduced gradually to avoid gastrointestinal upset, and pets with obesity or a history of pancreatitis should only use it under veterinary guidance.
04
Tricalcium Phosphate
Tricalcium phosphate is an inorganic mineral commonly used in dog and cat foods as a source of calcium and phosphorus and as an anti-caking/bulking agent to help fortify diets and adjust the dietary Ca:P balance. It supplies minerals important for bone and tooth health and neuromuscular function, but must be formulated carefully to maintain an appropriate calcium‑to‑phosphorus ratio and may be a consideration in pets with kidney disease where phosphorus intake is restricted.
05
Canola Oil
Canola oil is used in pet foods as a concentrated fat source and palatability enhancer that supplies energy and essential fatty acids—mainly omega‑6 (linoleic acid) and some omega‑3 (ALA)—and aids absorption of fat‑soluble vitamins. It can support skin and coat condition when balanced with animal fats or supplemental omega‑3s, but is calorie‑dense so must be portioned to avoid weight gain, does not provide species‑specific fats such as arachidonic acid for cats, and must be kept fresh to prevent oxidation.
Nutritional Breakdown
How to read As Fed versus Dry Matter
As fed shows the numbers straight off the label, water included. Dry matter removes the water so you can compare a wet food and a dry food fairly.What is calorie density
How many calories the food packs per unit. Denser foods mean smaller portions for the same calories.Product Details & Brand
Product Specs
AAFCO Nutritional Adequacy
What is AAFCO
Association of American Feed Control Officials. It sets the nutritional
adequacy standards US pet foods are measured against.
What is AAFCO
Association of American Feed Control Officials. It sets the nutritional adequacy standards US pet foods are measured against.Brand
Purina Pro Plan is Nestlé Purina’s flagship veterinary- and research-backed premium line, designed for pets with specific dietary needs and active lifestyles. It is supported by extensive nutritional science and AAFCO feeding trials.
Visit Purina Pro PlanWSAVA publishes criteria for evaluating a manufacturer (qualified nutritionists, feeding trials, published research); it does not certify or endorse brands.
Manufacturer
Nestlé Purina operates its own manufacturing facilities in the United States and globally with rigorous quality assurance programs. Facilities comply with FDA and USDA standards and implement HACCP-based food safety systems. The company conducts AAFCO feeding trials and employs board-certified veterinary nutritionists.
Manufacturing details are compiled from public sources and not independently verified; they may not reflect contract manufacturing or co-packing.
Recall History
Purina Pro Plan Pro Plan Veterinary Diets HA Hydrolyzed Protein Salmon Formula Dry Dog Food has no recalls since 2014.
Source: FDA Pet Food Recall Database · Monitored daily
Sign up for the full picture
Feeding Calculator
Personalized portion sizes based on your pet's weight, age, and activity level.
Get startedSimilar Foods
Post your dog's report card and challenge friends to check their food.
Frequently Asked Questions
Has Purina Pro Plan ever been recalled?
We have no recalls on record for Purina Pro Plan. We monitor the FDA Pet Food Recall Database daily.
How does KibbleLab rate foods?
Our scores are based on ingredient composition, nutritional profile, AAFCO compliance, and health considerations. We don't penalize by-products, grains, or synthetic preservatives. Brands cannot pay for higher scores.
Is KibbleLab a substitute for veterinary advice?
No. KibbleLab provides data-driven food analysis, not medical advice. Always consult your veterinarian before making dietary changes, especially for pets with health conditions.
KibbleLab provides informational content only. This is not veterinary advice. Always consult a qualified veterinarian before changing your pet's diet.
KibbleLab may earn affiliate commissions through product links. No one can pay for a higher score, or to change what we recommend for your pet.
Product data sourced from manufacturer websites, AAFCO statements, and FDA recall database. Last verified dates reflect our most recent data check.
Continue with Google
Continue with Facebook