Purina Pro Plan Veterinary Diets OM Overweight Management Formula Dry Cat Food

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16-lb bag
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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!

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
  • Weight
    16.0 pounds
  • Brand
  • Food Form
    Dry Food
  • Lifestage
  • Made in
    United States
  • Special Diet
    High-Protein, Prescription Food, Weight Control

Nutritional Info


  1. Corn Gluten Meal, Wheat Gluten, Soybean Meal, Poultry By-Product Meal, Oat Fiber, Soy Protein Isolate, Brewers Rice, Fish Meal, Powdered Cellulose, Animal Fat Preserved with Mixed-Tocopherols (Form of Vitamin E), Phosphoric Acid, Animal Liver Flavor, Calcium Carbonate, Potassium Chloride, Salt, Choline Chloride, L-Lysine Monohydrochloride, Vitamin E Supplement, Taurine, Zinc Sulfate, Ferrous Sulfate, L-Ascorbyl-2-Polyphosphate (Source of Vitamin C), Manganese Sulfate, Niacin, Vitamin A Supplement, Calcium Pantothenate, Thiamine Mononitrate, Copper Sulfate, 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

  1. 3,240kcal/kg, 321 kcal/cup
Guaranteed Analysis
Crude Protein 50.0% min
Crude Fat 6.0% min
Crude Fat 10.0% max
Crude Fiber 8.0% max
Moisture 11.0% max
Ash 7.5% max
Calcium 0.9% min
Phosphorus 0.85% min

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Customer Reviews

Rated 4.8 out of 5 by 33 reviewers.
Rated 5 out of 5 by This food is fantastic! One of my cats is diabetic so she needs a specific diet. This is what the vet prescribed and she loves it. I also put my other cat on this food and she loves it too. I highly recommend this food and Chewy has the best price. January 3, 2017
Rated 5 out of 5 by Great price, fast shipping Got tired of paying high price at vet for prescription cat food (I know vet needs to make a buck too), so I checked Chewy's price - what a savings - and fast, free shipping made the decision easy! Chewy also had the best price for our other cat's food, so now they get all my business for my pets needs. November 13, 2016
Rated 5 out of 5 by the other reviews are true Yes the other reviews are true, my cat also loves this food, and I like that it fills her to where she is not begging in between feedings. it keeps her full. October 30, 2016
Rated 5 out of 5 by Great for cats who need to lose weight! Very convenient and the people are very helpful! I have 2 pets using this food and it gets expensive and chewy's has been so kind to send coupons to help the cost! October 25, 2016
Rated 5 out of 5 by Same great vet food delivered to my door = #win When one of our felines was eating for stress management rather than hunger (and a lot), we started to grow concerned for her health. She was gaining weight, and had a lot of food anxiety. If there wasn't food in her bowl, she would pace and stay very upset until food was put there again. She ate a little bit of wet food daily, but relied on dry food for her main source of fuel (and, in this case, comfort). Our Vet recommended OM Overweight Management Formula from Purina to help manage her weight. We could leave food in her bowl, to manage her anxiety, and the amount she ate wouldn't be as big of a worry for calories because of OM's fiber to calorie ratio. She has reduced, slowly, and her anxiety levels are much better. CHEWY has been a life saver! Who knew that I could get the BIG, heavy bag of food shipped to my doorstep? It was packaged well, and fresh... the same food, no effort on my part. We will return to buy this product, and possibly other products as well. Also, we look forward to recommending your site to others. Cheers, ~ Josie ~ May 19, 2014
Rated 5 out of 5 by Cat is losing weight This is the only food that my cat has started to lose weight and I have tried many! September 29, 2016
Rated 1 out of 5 by Scarf and Barf The vet recommended the Purina OM because the cat is overweight. I gradually transitioned her from her grain free cat food to the Purina OM. She seems to like the taste based on how eagerly she eats but she frequently throws it up a few hours later. I tried feeding her small portions more frequently but she still upchucks. I switched back to the grain free food and no more barfing. September 2, 2016
Rated 5 out of 5 by Awesome Fat-Cat Food This is the only food that has helped our chubby kitty lose weight while still filling her up. She loves it, and she's maintaining a good weight now. Our little cat also loves it, and his weight has remained steady. July 25, 2016
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