Purina Pro Plan Veterinary Diets HA Hydrolyzed Canine Dry Dog Food
"A great dane with an allergy to animal proteins, we tried everything and this has done the job. No funny tummy, no ulcers, overall a much happier dog."
$63.99
Mix with wet food
Product Information
Purina Pro Plan Veterinary Diets HA Hydrolyzed is a prescription dry dog food formulated to manage food sensitivities, intolerances, and food-related allergic responses. The protein source is hydrolysed soy protein isolate, meaning the proteins have been broken down into fragments too small for the immune system to recognise as allergens. Combined with corn starch as the sole carbohydrate source, this limits dietary triggers to a minimum, making it suitable for food elimination trials and long-term management of food-related skin and gastrointestinal conditions. Available in 2.72kg and 7.48kg. A valid veterinary prescription is required.
Health Benefits
- Hydrolysed protein (broken-down soy): proteins are processed into fragments too small for the immune system to recognise as allergens, helping reduce the chance of an allergic reaction
- Single carbohydrate source (corn starch): limits potential dietary triggers to one carbohydrate, supporting accurate food elimination trial results
- Helps manage food-related skin symptoms: supports dogs with allergic dermatitis where the trigger has been identified or suspected as a dietary protein
- Supports dogs with food-related gastrointestinal conditions: suitable for chronic vomiting, diarrhoea, and IBD (inflammatory bowel disease) where food sensitivity is a contributing factor
- Highly digestible formula: supports nutrient absorption in dogs with compromised gut function
- Suitable for long-term feeding: formulated as a complete and balanced diet, not an intermittent or supplemental food
Purina Pro Plan HA Hydrolyzed is a prescription elimination diet for dogs that uses broken-down protein and a single carbohydrate source to help manage food allergies and sensitivities. For more options, check out our broader range of dry dog food for sensitive skin.
What It’s Used For
- Food elimination trials: the restricted ingredient profile (single novel carbohydrate, hydrolysed protein) makes this suitable as a diagnostic elimination diet to identify food triggers
- Food allergy dermatitis in dogs: helps manage skin inflammation, itching, and hot spots driven by dietary protein sensitivity
- Food-related gastrointestinal disease: indicated for IBD (inflammatory bowel disease), chronic diarrhoea and vomiting where food sensitivity is a contributing factor
- Food intolerance: supports dogs with non-immunological adverse reactions to food that cause digestive or skin symptoms
- Pancreatitis (dietary management): the reduced fat content helps manage dogs requiring a low-fat diet as part of pancreatitis care
- Hepatic encephalopathy: the hydrolysed protein format is indicated as a dietary support option in dogs with liver-related neurological symptoms
Ingredients & Nutrients
Corn starch, hydrolysed 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.
| Nutrient | Amount |
|---|---|
| Crude Protein (min) | 18% |
| Crude Fat (min) | 8.0% |
| Crude Fibre (max) | 4% |
| Moisture (max) | 11.0% |
| Ash (max) | 7.0% |
| Calcium (min) | 0.7% |
| Phosphorus (min) | 0.6% |
| Energy | 3695 kcal/kg |
Product Specifications & Care
- Designed for dogs.
- Suitable for all life stages (consult your vet for use in puppies, pregnant, or lactating dogs).
- Available in 2.72kg and 7.48kg.
- Can be used to support food elimination trials, allergic dermatitis, IBD, food intolerance, pancreatitis, and hepatic encephalopathy.
- A valid veterinary prescription is required. Veterinary consultation every 6 months is recommended during use.
- Seek veterinary advice immediately if your dog’s condition deteriorates while feeding this diet.
- Also available as: Purina Pro Plan HA Hydrolyzed Canine Wet Food for dogs who benefit from added moisture or prefer a wet format.
How to Feed Purina Pro Plan Veterinary Diets HA Hydrolyzed Canine Dry to Your Dog
Feed as the sole food source during elimination trials and ongoing management. Transition gradually over 7 days from the previous diet. For accurate elimination trial results, feed HA Hydrolyzed exclusively with no other foods, treats, chews, or flavoured medications during the trial period.
| Body Weight (kg) | Daily Amount (g) |
|---|---|
| 2kg | 60g |
| 5kg | 111g |
| 10kg | 176g |
| 20kg | 280g |
| 30kg | 367g |
| 40kg | 445g |
| 50kg | 517g |
| 60kg | 584g |
| 70kg | 648g |
Adjust amounts to maintain ideal body condition. Divide the daily amount into two meals where possible. Store in a cool, dry place below 25°C, sealed after opening.
Why Dr Jane Miller Recommends It
"When a dog comes in with recurring skin issues or chronic digestive upset and I suspect food sensitivity, Purina Pro Plan HA Hydrolyzed is an ideal diagnostic tool. The hydrolysed protein is a single soy protein source broken down into fragments too small for the immune system to recognise — which gives the diet a very clean, restricted profile that makes it ideal for elimination trials. It's also highly digestible, which matters for dogs whose gut function is already compromised. The low-residue formula supports nutrient absorption without adding unnecessary complexity. One thing I always explain to owners: this food works best when it's the only thing the dog eats for the full trial period — no treats, no table scraps, nothing else. And it's worth having an honest conversation with your vet about whether HA Hydrolyzed is the right fit; for dogs that need broader nutrient variety or higher calorie intake, there may be a better option."
— Dr. Jane Miller, Veterinarian at Newtown Veterinary Clinic & Vets Love Pets Partner
Always discuss prescription diets and treatment options with your veterinarian before use.
Shipping
Non-Prescription Products:
• Free shipping on metro orders over $49+.
• Shipping fee for regional orders & metro orders under $49 will be calculated at checkout.
Prescription Medications:
Shipped separately via express shipping at a flat rate of $9.49, or select free standard shipping*.
Returns
Non-Prescription Products:
We offer a hassle-free return policy within 30 days for unopened items in original condition for exchange or store credit. Refunds are available if the product is faulty or not as described; however, food or treats cannot be returned once opened.
Prescription Medications:
We cannot accept change of mind returns for prescription products, given that there are laws that prohibit the resale of medication. Please make your selections carefully, and double-check your order before submitting.
Palatability Guarantee
Our Palatability Guarantee applies to selected brands, including Advance, Royal Canin, Purina, Hill's and 4CYTE, allowing you to return any unused portion of dry/wet food for an exchange or full refund.
- JZLevel 3Jiawei Z.Verified BuyerRated 5 out of 5 starsReliable product
My toy poodle has a very sensitive stomach and was recommended by the vet to go on Purina HA. It has helped manage his gastro sensitivity.
- TGLevel 2Tammy G.Verified BuyerRated 4 out of 5 starsExcellent product but hard to find
My dog could only eat hydrolized food.
Pro plan was the best option and the one she liked. It was just hard to find as it gets out of stock fast
- HFLevel 3Holly F.Verified BuyerRated 5 out of 5 starsThe only option in the world
I have an ibd dog and this is literally (tried and tested the only food in the world that doesnt make her sick. It used to be such a mission to find until vetslovepets started stocking. Now I never have to worry about feeding my girl
- BLLevel 1Brittnee L.Verified BuyerRated 5 out of 5 starsPerfect for my dog
I have a pug with lots of skin sensitivities and this was recommended by our vet. He loves it and we have noticed an improvement in his skin.
- BSLevel 3brendan s.Verified BuyerRated 5 out of 5 starsBarney has never been better
A great dane with an allergy to animal proteins, we tried everything and this has done the job. No funny tummy, no ulcers, overall a much happier dog.
Frequently Asked Questions
Yes, Purina Pro Plan Veterinary Diets HA Hydrolyzed is a prescription diet that requires a valid veterinary recommendation to purchase. Your dog should be examined by a vet before starting this diet, and a follow-up consultation is recommended every six months during ongoing use. If your dog’s condition worsens while on this diet, seek veterinary advice immediately.
A food elimination trial typically requires 8–12 weeks of feeding the hydrolysed diet exclusively with no other food, treats, or flavoured medications. During this period, HA Hydrolyzed must be the only food source for the trial to be diagnostically valid. If symptoms resolve during the trial, a food challenge (reintroducing the original diet) can confirm whether food sensitivity was the underlying cause. Your vet will guide the timing and interpretation of the trial.
Purina Pro Plan HA Hydrolyzed uses hydrolysed soy protein isolate, where the protein is broken down into fragments small enough that the immune system is unlikely to recognise them as allergens. Unlike limited ingredient diets that use novel whole proteins (such as duck or venison), the hydrolysed protein approach is designed specifically for dogs that have developed sensitivities to multiple protein sources, or where the specific trigger protein is unknown. The single carbohydrate source (corn starch) further restricts dietary variables during an elimination trial. For more on this, Dr Jack Ayerbe explains choosing the right diet for dogs with food-related skin allergies in detail.
Purina Pro Plan HA Hydrolyzed is formulated as a complete and balanced diet and can be fed long-term as an ongoing management diet, not just during elimination trials. Many dogs with confirmed food sensitivities remain on this diet indefinitely as it provides complete nutrition while minimising the risk of allergic flare-ups. Long-term use should be monitored by a veterinarian with six-monthly check-ups recommended.
During a food elimination trial, Purina Pro Plan HA Hydrolyzed must be fed exclusively with no other foods, treats, chews, or flavoured medications, as even small amounts of other proteins can invalidate the trial. Outside of a trial period, the HA Hydrolyzed wet food (337g cans) can be used alongside the dry formula for variety or added moisture. No other treats, toppers, or foods containing different protein sources should be introduced without veterinary guidance, as this may trigger a reaction in sensitive dogs.
