Purina Pro Plan Veterinary Diets OM Overweight Management Formula Canned Cat Food, 5.5-oz, case of 24

Prescription Item

  • Price:

    $46.99 FREE 1-2 Day Shipping over $49

In stock

This item requires prescription approval. Details

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Purina Pro Plan Veterinary Diets OM Overweight Management Feline Formula delivers a diet-friendly cat food that is low in fat and calories yet high in fiber and protein. This formula provides balanced nutrition for safe and effective weight loss. It offers dietary benefits that provide optimal nutrition while meeting your adult cat's special needs.

Key Benefits
  • The Association for Pet Obesity Prevention estimates that over half of cats in the US are overweight or obese. Excessive weight can lead to diabetes, aggravate joint disease, and even shorten life span.
  • Purina Pro Plan Veterinary Diets OM has been specifically formulated to help your cat loose extra weight while maintaining muscle mass.
  • It's low in calories and fat which helps promote weight loss and it's also high in protein so that your cat keeps lean body mass. High fiber levels help to keep your cat full and satisfied.
  • This highly palatable food has been designed for cats that suffer from obesity, constipation, fiber responsive colitis, hyperlipidemia, and diabetes.
  • Made in the USA!

Use only as directed by your veterinarian.

Veterinary Authorization

This product requires a veterinary authorization. Simply provide your vet’s information during checkout and we’ll follow up to confirm. If you have a copy of your authorization, you can expedite the 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

See all items by Purina Pro Plan Veterinary Diets

  • Item Number
  • Packaging Type
  • Food Texture
  • Brand
  • Food Form
    Wet Food
  • Lifestage
  • Made in
    United States
  • Special Diet
    High-Protein, Prescription Food, Weight Control
Nutritional Info

Water Sufficient for Processing, Liver, Rice, Chicken, Ocean Whitefish, Meat By-Products, Powdered Cellulose, Salmon Meal, Artificial and Natural Flavors, Guar Gum, Calcium Sulfate, Potassium Chloride, Taurine, Carrageenan, Vitamin E Supplement, Thiamine Mononitrate, Zinc Sulfate, Calcium Phosphate, Ferrous Sulfate, Niacin, Calcium Pantothenate, Vitamin A Supplement, Copper Sulfate, Menadione Sodium Bisulfite Complex (Source of Vitamin K Activity), Manganese Sulfate, Pyridoxine Hydrochloride, Riboflavin Supplement, Vitamin B-12 Supplement, Biotin, Folic Acid, Potassium Iodide, Vitamin D-3 Supplement, Sodium Selenite.

Caloric Content

835 kcal/kg, 130 kcal/5.5 oz can

Guaranteed Analysis
Crude Protein8.5% min
Crude Fat1.0% min
Crude Fiber4.0% max
Moisture80.0% max
Feeding Instructions

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

WeightAdult Maintenance Daily Feeding (Cans)Adult Weight Loss Daily Feeding (Cans)
5 lbs17/8
8 lbs1 1/81 3/8
12 lbs2 1/22
16 lbs3 3/82 3/4
20 lbs4 1/83 3/8
25 lbs5 1/44 1/4

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

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

30 Reviews 30 Reviews 4.6 out of 5 Stars

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93% Recommend

93% of reviewersrecommend this product

4.6 / 5

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30 Reviews

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  • 5 out of 5 stars

    Food seems yummy to cats

    By on

    My cats have been picky about eating and ended up a little chunky. Since switching them over to a wet/dry diet on the OM they have lost considerable weight.

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  • 4 out of 5 stars

    Fat cat, Greta Garbo

    By on

    Loved this at first then got bored with it. Can you make it in different flavors or in a pate’?

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  • 5 out of 5 stars

    Highly Recommend

    By on

    I have a rescued stray cat that just cannot stop herself from over feeding. She went from 9 lbs rescued to 17.6 lbs in close to a year. Unfortunately I have 2 other cats so restricting the food is near impossible, especially in a 1 bedroom. While I am not thrilled with the meat ingredients in this product all 3 of my cats LOVE this canned food and due to its low fat and calorie content my big rescue, Chloe, can eat a decent portion (giving her less food to restrict calories made her overeat more in the past) without gaining weight and in less than 1 month she has lost a whole pound! We all love it and I will continue to purchase.

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  • 5 out of 5 stars

    Cat loves it

    By on

    Our cat is now licking his bowl clean and losing weight. He doesn't appear to be hungry during the day. We are very pleased with this product

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  • 5 out of 5 stars

    Why I love this

    By on

    My feral cat has special dietary needs the vet told me because of GI problems. After having 5 teeth removed because of decay the cat was put on this food and seems very happy to have her breakfast and dinner served every night.

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  • 3 out of 5 stars

    Specialty Cat food

    By on

    Could not get my cat to eat this partcular brand of canned cat food so decided to try another brand in my next order

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  • 5 out of 5 stars

    My Cat loves it

    By on

    This is the only Overweight Cat Food my Cat will eat, she is very picky and I had tried 7 different Brand of Weight Management Food. Would definitely recommend this product.

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  • 5 out of 5 stars

    no more poopy butt

    By on

    One of my cats had a chronic case of poopy butt. Ever since I started her on Purina Pro Plan overweight management wet and dry Foods her rear end is much cleaner. Also all three of my cats love the canned OM including my one cat who previously only wanted to eat dry food. It amazes me that he cleans his plate every evening. I started two of my cats on this food at my veterinarians Direction and I have noticed that my one cat has started climbing again and is much more active. I have not had their weight done but I can definitely see a difference in there appearance and energy level.

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  • 5 out of 5 stars

    Purina OM is working !!

    By on

    Adopted a fat cat, now known as Sampson and this product was recommended by the agency. He loves it and has lost about 4 lbs in a 3 month time span. It fills him and I maintain his feeding schedule so he eats one can a day along with a 1/2 cup of dry food (same OM formula). Love Chewy's free delivery to the door.

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  • 5 out of 5 stars

    Did the job!

    By on

    OM has solved the weight problem with my 18 pound cat. She likes the taste and still gobbles up her meals, but she is slowly using weight, which Is a good thing.

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