Purina Pro Plan Veterinary Diets HA Hydrolyzed Formula Dry Dog Food

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This prescription item requires vet approval. Details


Food sensitive dogs can benefit from Purina Pro Plan Veterinary Diets HA Hydrolyzed Canine Formula, a unique vegetarian dog food that features simple proteins and low-allergen carbohydrates designed to minimize the risk of food allergic reactions. It offers dietary benefits that provide optimal nutrition while meeting your adult dog's or growing puppy's special needs.

Key Benefits

  • Food sensitivities generally appear in pets as gastrointestinal upset and/or intense scratching or itching. It can develop at any life stage, even after eating the same food for years without problems. Purina Pro Plan Veterinary Diets HA has been specifically formulated to help manage food sensitivities with a single protein source.
  • This vegetarian formula contains a single hydrolyzed protein source that is highly digestible for optimum nutrient absorption. Hydrolyzing means that the protein has been broken down into smaller components, specifically an average molecular weight below 12,200 daltons. Because of this, it's less likely to cause a negative response in your food-sensitive pup.
  • A single, low allergen carbohydrate source is included to minimize the risk of food related reactions. It's a source of Medium Chain Triglycerides (MCTs) which don't require energy for absorption, use, or storage.
  • Suited for dogs that have food allergic gastroenteritis or dermatitis, food intolerance, inflammatory bowel disease, or pancreatitis.
  • Made in the USA!


Use only as directed by your veterinarian. Product not intended for ruminants or livestock.

Note: Purina Pro Plan Veterinary Diets require a veterinary prescription. This product will not be shipped until a copy of a valid prescription authorization is faxed to 1-800-619-7973 or e-mailed to rx@chewy.com.

See all items by Purina Pro Plan Veterinary Diets

  • Item Number
  • Brand
  • Breed Size
    Small, Medium, Large, All Breeds
  • Food Form
    Dry Food
  • Lifestage
  • Made in
    United States
  • Special Diet
    Prescription Food, Vegetarian

Nutritional Info


Starch, Hydrolyzed Soy Protein Isolate, Vegetable Oil, Dicalcium Phosphate, Partially Hydrogenated Canola Oil Preserved with Tbhq, Powdered Cellulose, Corn Oil, Potassium Chloride, Guar Gum, Choline Chloride, Dl-Methionine, Salt, Magnesium Oxide, Lecithin, Taurine, Zinc Sulfate, Ferrous Sulfate, Vitamin E Supplement, Manganese Sulfate, Niacin, Vitamin A Supplement, Copper Sulfate, Calcium Pantothenate, Thiamine Mononitrate, Riboflavin Supplement, Garlic Oil, Vitamin B-12 Supplement, Pyridoxine Hydrochloride, Folic Acid, Vitamin D-3 Supplement, Calcium Iodate, Biotin, Menadione Sodium Bisulfite Complex (Source of Vitamin K Activity), Sodium Selenite.

Caloric Content

3,723 kcal/kg, 311 kcal/cup

Guaranteed Analysis
Crude Protein 18.0% min
Crude Fat 8.0% min
Crude Fiber 4.0% max
Moisture 10.0% max

Feeding Instructions

The following feeding program is recommended as a guideline only, with discretionary clinical adjustments for proper weight maintenance.

Weight Adult Maintenance Daily Feeding (Cups)
3 - 12 lbs 1/2 - 1 1/3
13 - 20 lbs 1 1/3 - 2
21 - 35 lbs 2 - 2 7/8
36 - 50 lbs 2 7/8 - 3 2/3
51 - 75 lbs 3 2/3 - 4 3/4
76 - 100 lbs 4 3/4 - 5 3/4
Over 100 lbs 5 3/4 + 1/3 for each 10 lbs over 100 lbs

Provide adequate fresh water in a clean container for your dog daily. For your pet’s health, see your veterinarian regularly.

Puppies: If your dog is under one year of age, consult your veterinarian for the proper amount to feed.

Transition Instructions

With your veterinarian’s approval, offer increasing amounts of the new food with decreasing amounts of the old food.

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Customer Reviews

145 reviews 145 Reviews 4.6 out of 5 Stars
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97% Recommend

97% of reviewersrecommend this product

4.6 / 5
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  • Great for dogs w/ food allergies

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    My vet put my Shih Tzu (Molly) on this food for an 8 week trial to see if she truly has food allergies. Since she's been eating the Hydrolyzed formula she is no longer vomiting and eating herself from itching all the time. She's been on it for about 4 weeks now and has shown a ton of improvement. My pomeranian (Gizmo) is also eating this food just to keep from chancing Molly from accidentally getting into it and flaring back up again. I plan on continuing this food for my dogs. They both eat it up so quickly and they usually don't eat their food all at one time. Thank you to Chewy for the best pricing around and the quick free delivery.

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    By on

    My dog experienced diarrhea for years. I tried everything - medications, changing food and nothing worked. During a surgical repair for a torn ACL they did a stomach biopsy... he had Irritable Bowel Disease. After switching to this and only this food all diarrhea stopped.

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  • Expensive But Works

    By on

    My dog has many food allergies and a very sensitive stomach. After trying many other premium brands and not having much success, my veterinarian suggested I go with a hydrolyzed formula. It was an expensive option, but the only one that did not cause her to have discomfort and make her vomit. That said, Chewy offers this brand for about 15 bucks cheaper than my vet, even after Chewy themselves raised the price on this not too long ago. Combined that with the free shipping and the every three month auto fulfillment, it's a pretty good deal all around. I have scoured pet stores and other websites, but I have yet to match or beat Chewy's price and convince.

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  • Very easy process

    By on

    Thank you for making the ordering process so easy. My pets have been on this food for some time. My vet no longer carries this brand so they recommended your site. Process to order was super easy and my pets were glad to keep their food brand.

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  • Low fat prescription kibble

    By on

    Thank you for your prompt service. We have always purchased our dog's food and treats from one of her veterinarian's offices. This time they were out and suggested I try online. I used my phone to order from Chewy when in the Veterinary office. Chewy immediately contacted the vet's office and got the prescription and shipped right out as promised. Great service, friendly staff. We thank you and our dog really thanks you. It is all she can have and to run out would not be good.

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  • Excellent Food

    By on

    This food was prescribed by my vet. It is more expensive, but has helped my young Corgi. The food is clean, neat, and she really likes it. It's great that Chewy carries it. I don't have to make a special trip to the vet and Chewy has it cheaper. Chewy's the best!!!

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  • my dog hates this food

    By on

    Lucy is a yellow lab that has suffered from allergies for 4 years. After finally testing her I was told that this food was one of the best for her. I purchased it right away. She hates it. While I was transitioning her to it we mixed it with her old food, she would eat it that way. Now it is only this food and she refuses it. I finally added cottage cheese to it so she would eat after 4 days of not eating. I have gathered the ingredients to make a special food just for her so that is my next option. I wish this would have worked. I may mix it in with the homemade food I am planning to make for her. At the cost I really don't want to waste any more money on it.

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  • saving some green

    By on

    This is expensive dog food to begin with and of course with the allergies my dog has vet said this is the only dog food for her. I am saving over $10 a bag with the auto ship. I can even change the time when it ships for 4 weeks to 5 weeks or whatever works best for me and my dog. Looking in to ordering pillows for my girl.

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  • BEST Dog Food ... and we've been through MANY!

    By on

    I was SO EXCITED when not only could I buy the ONLY food our adorable Pug can eat with NO ITCHING, (he seems as he gets older he's more prone to allergies), but I can save a lot of money buying it online. Thank You chewy.com for making our day, lives and health so much happier!

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  • Convenience to MY home

    By on

    No more stopping at the vet and paying higher prices. Same quality shipped to my home. Great !

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