Purina Pro Plan Veterinary Diets EN Gastroenteric Formula Dry Dog Food

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This prescription item requires vet approval. Details


Adult dogs and growing puppies with GI issues may benefit from Purina Pro Plan Veterinary Diets EN Gastroenteric Canine Formula’s high digestibility, moderate fat, added zinc, low fiber and more. It offers dietary benefits that provide optimal nutrition while meeting your adult dog's or growing puppy's special needs.

Key Benefits

  • Gastrointestinal upset is one of the most common reason dogs visit the vet. It can be caused by many factors and generally impairs a dog's ability to digest and absorb nutrients.
  • Purina Pro Plan Veterinary Diets EN has been specifically formulated with the protein levels that your dog needs, as well as prebiotics and low fiber to support intestinal health.
  • It has excellent palatability, low carbohydrates, and moderate fat levels so it provides your dog with optimized nutrition.
  • Suited for dogs that have gastritis and enteritis, inflammatory bowel disease, pancreatitis, and other diseases of the intestinal tract.
  • 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
  • Weight
    32.0 pounds
  • Brand
  • Breed Size
    All Breeds, Small, Medium, Large
  • Food Form
    Dry Food
  • Lifestage
  • Made in
    United States
  • Special Diet
    Sensitive Digestion, Prescription Food

Nutritional Info


Brewers Rice, Corn Gluten Meal, Whole Grain Corn, Chicken Meal, Animal Fat Preserved with Mixed-Tocopherols (Form of Vitamin E), Coconut Oil, Calcium Phosphate, Calcium Carbonate, Wheat Bran, Animal Digest, Potassium Chloride, L-Lysine Monohydrochloride, Sodium Bicarbonate, Salt, Fish Oil, Zinc Proteinate, Vitamin E Supplement, Dried Colostrum, Choline Chloride, L-Ascorbyl-2-Polyphosphate (Source of Vitamin C), Manganese Proteinate, Ferrous Sulfate, Niacin, Copper Proteinate, Vitamin A Supplement, Calcium Pantothenate, Thiamine Mononitrate, Riboflavin Supplement, Vitamin B-12 Supplement, Pyridoxine Hydrochloride, Garlic Oil, Folic Acid, Vitamin D-3 Supplement, Calcium Iodate, Biotin, Menadione Sodium Bisulfite Complex (Source of Vitamin K Activity), Sodium Selenite.

Caloric Content

3,826 kcal/kg, 399 kcal/cup

Guaranteed Analysis
Crude Protein 23.0% min
Crude Fat 10.5% min
Crude Fiber 2.0% max
Moisture 12.0% max
Ash 7.5% max
Calcium 0.95% min
Phosphorus 0.75% min
Linoleic Acid 1.4% min
Manganese 70 ppm min
Zinc 200 ppm min
Vitamin A 15,000 IU/kg min
Vitamin E 350 IU/kg 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 (Cups)
3 - 12 lbs 1/3 - 1
13 - 20 lbs 1 - 1 1/2
21 - 35 lbs 1 1/2 - 2 1/4
36 - 50 lbs 2 1/4 - 2 3/4
51 - 75 lbs 2 3/4 - 3 2/3
76 - 100 lbs 3 2/3 - 4 1/2
Over 100 lbs 4 1/2 + 1/4 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

147 reviews 147 Reviews 4.9 out of 5 Stars

99% Recommend

99% of reviewersrecommend this product

4.9 / 5
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  • Should have Small Breed Sizing

    By on

    My dog likes the dry EN food, but likes the canned EN better. However, the size of the EN kibble is too big for a Yorkshire terrier and would suit a larger breed dog, but Purina only makes it in one size. It would be helpful to make it in a small breed size also so my dog doesn't choke when she "woofs it down." I have to moisten it to solve the problem, and if she doesn't eat it all, I have to throw away the remaining soggy kibble.

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  • my aged 14 Border Collie

    By on

    My Maggie has been on this food for many years, but I always had to drive 20 miles to her Vets office and buy it. It was wonderful when I saw it on Chewy. I am not sure how .long my baby will live, so I don't think I can do the "auto" shipment. I will just continue to order it as needed. THANK YOU

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  • Good replacement for Iams Digestive Formula!

    By on

    We had been on an Iams form of this Rx diet, and I was nervous our little guy wouldn't make the switch. It took a couple days of consistent feeding, but now he's downing it like a champ, which is good because I have to try to keep weight on him. He also likes the wet food version of this. Btw, chewy.com, excellent customer service as always...you have the nicest people!! Please don't ever change!

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  • Food for kids

    By on

    I just recently order the food for the kids, when the vet change their food cause of ingredients, call them and was blown away how awesome they were bout 100% return policy and had the food that the vet Prescribed

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  • Simple and fast

    By on

    Easy to order, easy for my vet to provide the prescription and shipping was quick. Will happily order my specialty dog food again!

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  • Great Food

    By on

    I am confident this food is helping my baby Leo. Although, the price is very high. I'm in a fixed income n I gave up a lot to buy it. Because I love him n I have to take care of him. He's my roommate. I was floored we when I found out how much it was. But he needs it. I wish it was cheaper. Now I'm paying 4 x the amount to feed him every month. Sincerely. ViKing.

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  • Last of many prescription diets.......

    By on

    So far, we have been making progress with an intestinal inflammation our Newfoundland has had since early April. She loves the diet and has regained the weight lost.

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  • Eats it like it's snack food

    By on

    I have an old girl lab who has been going to physical therapy for some time. the rehab hospital that treats her feeds EN as a snack. Sandi eats it as such. We worry she won't eat enough, so we leave a bowl of EN out at all times, so she can snack on it whenever she pleases. Been a good product for an old gal who eats unreliably at times.

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  • IAMS replacement

    By on Top 1000 Contributor

    IAMS quit making food Bailee was on for 1.5 years with no problems. Royal Canin Replacement was not tolerated so vet suggested Purina. Seems to be doing better and she at least likes the taste of it. Time will tell if intestinal issues subside.

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  • Purine Pro Plan EN

    By on

    Great food. Only food our boxer can eat now with his sensitive tummy.

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