Veterinary Diets HA Hydrolyzed Feline Formula Dry Cat Food
Verified Jun 14, 2026
This is a veterinary therapeutic dry diet for kittens and adult cats that uses hydrolyzed soy and chicken proteins to help reduce the risk of food-related reactions. Rice starch provides a simple carbohydrate source, while added fish oil and essential amino acids support overall nutrition. It’s designed to be highly digestible and suitable for long-term feeding under veterinary supervision.
Nutritionally, this is a well-designed hydrolyzed protein diet for cats with suspected or confirmed food allergies or sensitive digestion. The hydrolyzed soy and chicken proteins are broken into very small pieces, which makes them much less likely to trigger an immune response, and the overall formula is balanced for both kittens and adults. It’s a strong option if your veterinarian has recommended a hydrolyzed diet, and it’s appropriate for long-term use if needed.
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At a Glance
KibbleLab Review
Strengths
- Uses hydrolyzed soy protein and hydrolyzed chicken sources, which are the gold standard approach for managing food allergies and adverse food reactions in cats.
- Complete and balanced to AAFCO standards for both growth (kittens) and adult maintenance, so it can be used as the sole diet across these life stages.
- Moderate protein and fat levels for a veterinary allergy diet, with added essential amino acids like taurine and DL-methionine to support overall health.
- Fish oil provides omega-3 fatty acids, and the formula is designed to be highly digestible, which can be helpful for cats with sensitive gastrointestinal tracts.
Considerations
- Primary protein is soy, so it may not be ideal for cats that have reacted specifically to soy in the past, even though it is hydrolyzed.
- Fat level is on the lower side compared with many standard cat foods, which can be fine for most cats but may not suit those needing higher calorie density without increasing food volume.
- Contains chicken-derived ingredients (hydrolyzed chicken and hydrolyzed chicken liver); while hydrolysis greatly reduces reactivity, a very small subset of severely food-allergic cats may still require a different protein source if they fail to improve.
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
Rice Starch
Rice starch is a highly digestible carbohydrate and functional ingredient in pet foods, used primarily as a binder, thickener and source of easily digestible energy for both dogs and cats while providing negligible protein, fat, vitamins or minerals. It is gentle on the gastrointestinal tract and often chosen for sensitive or limited‑ingredient diets, but its relatively high glycemic load and low nutrient density mean formulations must be balanced to avoid weight gain or blood‑sugar issues, and it offers little nutritional value for obligate carnivores like cats.
02
Soy Protein
Soy protein is a concentrated plant-based protein commonly used in pet foods to boost protein content, improve texture and binding, and provide a cost-effective alternative to animal proteins. It supplies substantial protein for dogs and can be used in cat diets when formulas are properly balanced, but its amino-acid profile and digestibility are generally lower than animal proteins (often requiring supplementation such as taurine for cats), and some pets may have soy sensitivities or be affected by soy compounds, so diets with soy should be formulated and processed appropriately.
03
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.
04
TBHQ
TBHQ (tertiary butylhydroquinone) is a synthetic antioxidant used in pet foods to stabilize fats and oils and extend shelf life by preventing rancidity. It has no nutritional value; regulatory agencies permit its use at low levels in dog and cat foods, but high doses can be harmful and some pet owners prefer to avoid synthetic preservatives.
05
Hydrolyzed Chicken Liver
Hydrolyzed chicken liver is enzymatically broken-down chicken liver used in pet foods as a highly palatable, easily digested source of protein, amino acids and liver-derived nutrients (notably vitamin A and B vitamins), and it’s commonly included in hypoallergenic or limited-ingredient diets because hydrolysis reduces the likelihood of an allergic reaction. While it can improve digestibility and flavor and add nutrient density, very sensitive animals may still react to hydrolyzed proteins, and concentrated liver ingredients can contribute excess vitamin A or purines if overused, so follow feeding guidelines and consult your veterinarian for pets with known sensitivities or metabolic concerns.
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 Veterinary Diets HA Hydrolyzed Feline Formula Dry Cat Food has no recalls since 2014.
Source: FDA Pet Food Recall Database · Monitored daily
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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.
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