Purina Pro Plan Veterinary Diets HA Hydrolyzed Formula Dry Cat Food

Prescription Item

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    $60.99 FREE 1-2 Day Shipping on this item

In stock
8-lb bag
  • 4-lb bag
  • 8-lb bag

This item requires prescription approval. Details

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Food sensitive cats can benefit from Purina Pro Plan Veterinary Diets HA Hypoallergenic Feline Formula, a unique cat 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 cat’s or growing kitten’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.
  • The single, hydrolyzed protein source 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 cat.
  • 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 cats 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.

Prescription Approval

This product requires a veterinary prescription. Simply provide your vet's information during checkout and we'll follow up to confirm. If you have a copy of your prescription, you can expedite the approval process by taking a photo and emailing it to vetdiet@chewy.com, or by faxing it to 1-800-619-7973.

  1. How To Order

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  • Item Number
  • Weight
    8.0 pounds
  • Brand
  • Food Form
    Dry Food
  • Lifestage
  • Made in
    United States
  • Special Diet
    Prescription Food
Nutritional Info

Rice Starch, Hydrolyzed Soy Protein Isolate, Partially Hydrogenated Canola Oil Preserved with Tbhq, Hydrolyzed Chicken Liver, Tricalcium Phosphate, Powdered Cellulose, Corn Oil, Hydrolyzed Chicken, Sodium Bisulfate, Dl-Methionine, Potassium Chloride, Choline Chloride, Tetra Sodium Pyrophosphate, L-Lysine Monohydrochloride, Phosphoric Acid, Salt, Guar Gum, Taurine, Lecithin, Magnesium Oxide, Zinc Sulfate, Ferrous Sulfate, Vitamin E Supplement, Manganese Sulfate, Niacin, Calcium Carbonate, Citric Acid, Vitamin A Supplement, Calcium Pantothenate, Thiamine Mononitrate, Copper Sulfate, BHA (a Preservative), Riboflavin Supplement, 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

4,032 kcal/kg, 350 kcal/cup

Guaranteed Analysis
Crude Protein 30.0% min
Crude Fat 9.0% min
Crude Fiber 4.0% max
Moisture 10.0% max
Ash 7.75% max
Calcium 0.9% min
Phosphorus 0.8% min
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 (cup)
3 - 5 lbs 1/4 - 1/2
6 - 8 lbs 1/2 - 2/3
9 - 12 lbs 2/3 - 1
13 - 16 lbs 1 - 1 1/4
17 - 20 lbs 1 1/4 - 1 1/2
21 - 25 lbs 1 1/2 - 2

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

Kittens: If your cat is under 1 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.


Why should I buy Vet Diet food online?

Shopping for Vet Diet food is easy! Chewy experts are available 24/7 to answer your questions and guide you through the process. We offer competitive prices, free shipping on orders over $49, and more savings if you sign up for an Autoship subscription.

How do I order Vet Diet food?

  1. Search our website for the diet your vet recommends, then add it to your cart. You can purchase your Vet Diet food with any other goodies you need!
  2. At checkout, you’ll be asked for required information. Enter your pet’s name and type your vet’s name and telephone number.
  3. Place your order, and we’ll take care of the rest!

How will you contact my vet?

Our Vet Diet team will personally contact your vet for approval. If your clinic needs more information from you or recommends a different diet, we’ll let you know immediately.

Does it help if I send you my prescription?

Yes! If you have a paper copy of your prescription, email a picture to vetdiet@chewy.com, start a chat, or fax your prescription to 1-800-619-7973.

Can I use a prescription written by a veterinarian out of state?

Of course! We can accept valid prescriptions from anywhere in the United States and Canada—that includes US territories, like Puerto Rico.

Why do I need a prescription?

Veterinary diets are formulated with the precise ingredients and nutrients needed to address specific medical issues. If you don’t have a paper prescription, no sweat—once you provide your vet’s information, our team will take over.

Can someone else (such as a caretaker or family member) place an order for my pet?

Yes, but we’ll need them to provide us with your full name or the pet’s owner’s name via phone, email or chat after the order is placed, so the clinic can locate your pet’s records when we contact them.

How can I help expedite my order?

Just follow these simple steps: 1. Create your pet ’s profile on Chewy.com. 2. If you have an Autoship scheduled, but you’re running low on refills, contact us ahead of time to let us know if you have a new clinic or if any prescription information has changed. 3. If you have a prescription handy, send it to us before you order—by sending an email to vetdiet@chewy.com, starting a chat with one of our experts, or faxing us at 1-800-619-7973.

Do I need to set up a pet profile?

We recommend it, but it’s not required. You can create your pet’s profile by logging in at Chewy.com, hovering over your account, and choosing “pet profile.”

Do prescriptions expire?

Yes. Your vet will tell us when your prescription will expire and how many refills we can send before they’d like you to check back in with them.

Can I set up auto refills?

Yep! Sign up for Autoship and we’ll automatically ship your food for as long as your prescription allows. If you run out of refills, or your prescription expires, we’ll automatically contact your vet for a new approval. If we hit any bumps in the road, we’ll let you know right away.

What if I have more questions? How can I reach the Vet Diet team at Chewy?

Email us at vetdiet@chewy.com, start a chat on Chewy.com, or call us anytime at 1-800-672-4399. We’re here for you 24/7.


Customer Reviews

77 Reviews 77 Reviews 4.5 out of 5 Stars

94% Recommend

94% of reviewersrecommend this product

4.5 / 5

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All 77 Reviews

Showing 1-10 of 77 Reviews

  • 3 out of 5 stars

    The cats got used to it.

    By on

    My cats did not initially like this food . But my one cat has to have hydrolyzed food because she has a food sensitivity and vomits daily on all other foods. I mixed it with other food gradually increasing the amount of hydrolyzed food in the mixture. During the transition my cat did not vomit . But she also wasn't eating a lot of the food . After two weeks and probably a bit of starvation they now eat the food without hesitation.

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  • 5 out of 5 stars

    Special Diet Food

    By on

    My vet recommended ordering my cat's special diet cat food from Chewy as it was getting very hard to find here. I did and it arrived quickly and I love that it is now set up for delivery every few weeks. No need for me to do anything else. How great is that!

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  • 5 out of 5 stars


    By on

    My cat loves it! She is on a strict diet & she dislikes most dry foods within her dietary restrictions but she gobbles this up.

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  • 3 out of 5 stars

    They won't eat it

    By on

    We bought this because one of our cats has been vomiting a lot and the Vet said this would help. It has not. This is not to say you are a bad company. Quite the contrary.

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  • 5 out of 5 stars

    Finally a food

    By on

    My furry guy has IBD and food allergies. I have tried every food on the market that didn't have certain proteins. Thanks to my new vet I tried Purina Pro Plan HA. He loves this food and I can finally put the quest for food he can and will eat to rest. Now if we could cure the IBD my fuzz face friend and I will be happy campers.

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  • 5 out of 5 stars

    Feeling so Much Better

    By on

    Our kitty was throwing up almost every day!!! Since he has been eating the Purina Pro food he has only thrown up a couple of times and that has been due to hairballs. He also used to moan/meow because his tummy hurt. He seems to feel great now!! He also loves the taste!!!!!! My only problem is my other two cats want to eat it, also. :)

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  • 4 out of 5 stars

    Cat loves it

    By on Top 250 Contributor

    My cat absolutely loves this. It's been a bit and she still gobbles it down. Not sure if it helped though - the dermatologist thinks it may not be a food allergy that's causing her problems so the food probably isn't to blame.

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  • 4 out of 5 stars

    Yeah - No more vomiting!

    By on

    Since switching to this food, my 16 y.o. DSH has not vomited once, whereas she was frequently vomiting 2 -3 day. I was truly at my wits end. I tried many types of grain-free and limited ingredient food (wet and dry), brought her to vet for an exam and blood work which revealed there are no underlying health issues. The vet recommended I try the Purina HA formula and what a relief. I haven't had to do extra laundry since Saturday. I'm only going with 4 stars for now b/c we just switched a few days ago. We'll see how she reacts long term and I'll revise my rating accordingly.

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  • 5 out of 5 stars

    Best food for what he needs

    By on Top 500 Contributor

    After my cat ended up at the vet for the second time, my vet decided that he needed a hydrolyzed diet that would be easier for his system to handle. I looked at all of them, and this is the one that seemed to be the best which surprised me because I'm not a Purina fan. He does love the food, and the ingredients are much more in line with what the specialist recommended than the hydrolyzed cat foods. He's doing well on this food, and that's the most important thing.

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  • 5 out of 5 stars

    Ten Meowwws

    By on

    When mommy bought this for us we thought "uh oh, nasty food", but it is so yummy. We're always waiting by our bowls in the morning for mommy to feed us. We do wish it came in a can too because we love hearing the can open. Oh well, at least this food is super yummy.

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