IAMS Proactive Health Large Breed with Real Chicken Adult Dry Dog Food, 15-lb bag - Chewy.com

Iams Adult Large Breed Real Chicken High Protein Dry Dog Food

By Iams
Rated 4.5507 out of 5 stars

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$26.98Chewy Price
$27.99Chewy Price
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About This Item


  • This adult dog food is formulated to support the nutritional needs of large breed dogs.
  • Features real farm-raised chicken as the first ingredient.
  • Premium-sourced protein helps your pooch maintain strong muscles.
  • Formulated to provide bone and join support—important for active large-breed dogs.
  • Promotes healthy digestion and immune system with a tailored blend of fibers and prebiotics.

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Nutritional Information

Feeding Instructions

Play Video: Learn More About Iams From Our Team of Experts
Learn More About Iams From Our Team of Experts

Vet-Trusted and Loved by Dogs

IAMS combines tailored nutrition with tasty real ingredients your dog will love. Choose from formulas targeted to specific age, size, special need and breed requirements and know that your pup will be getting everything he needs to be his best. Experts trust and recommend IAMS dry dog food for its complete and balanced nutrition, while dogs adore it for the delicious meaty flavor.

High Quality Animal Protein

Protein from real meat provides the building blocks for healthy muscles and the fuel your furry friend needs to thrive. Every IAMS dog food recipe features high-quality, natural animal protein from sources like chicken, beef, lamb and turkey that provide excellent nutrition and flavor for your carnivore.

100% Complete and Balanced

IAMS makes their dog food with 0% fillers and no artificial preservatives or flavors, so nothing comes between your dog and great nutrition. Each recipe contains all the nutrients your pup needs for a healthy diet, with a complete and balanced nutrient profile and ingredients specifically targeted to your dog’s size, age and breed needs.

Real, Wholesome Ingredients 

Real whole foods like farm-raised chicken, wholesome grains and antioxidant-rich veggies combine to provide the premium nutrition and taste your dog deserves. These natural sources provide important compounds like amino acids for healthy muscles, fiber and prebiotics for good digestion and omega-6 for a healthy skin and coat, plus a savory flavor that’ll keep him coming back for more.


IAMS is suitable for dogs of all ages and sizes – from nourishing growing puppies to giving seniors the nutrition they need to thrive.


Every wag-worthy recipe is specially formulated with key ingredients like omega-6 fatty acids to promote healthy skin and a glossy coat.


From urinary tract health formulas and more, IAMS provides dogs with nutrition as unique as they are to meet their specialized needs.

About IAMS

IAMS is driven by a philosophy of innovation and an emphasis on advanced pet nutrition. Through extensive research and a unique understanding of dietary requirements for dogs and cats, they've developed diets that help pets thrive. Their formulas meet the everyday needs of pets and their owners with options for every household. IAMS is a leader in pet nutrition that has provided 60 years of nutritional excellence with innovative products that help improve the health of pets worldwide.

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Top IngredientsChicken, Ground Barley, Ground Whole Grain Corn...Chicken, Chicken By-Product Meal, Ground Whole Grain Corn...Chicken, Rice Flour, Chicken By-product Meal...Chicken, Ground Whole Grain Corn, Ground Whole Grain Sorghum...Lamb, Chicken By-Product Meal (source of Glucosamine and Chondroitin Sulfate), Ground Barley...
Special DietWith GrainWith GrainHigh-Protein, Natural, With GrainWith GrainWith Grain
Health FeatureMuscle Care, Dental & Breath Care, Vitamins & MineralsVitamins & Minerals, Dental & Breath CareHigh-Energy, Immune Support, Muscle Care...Immune Support, Vitamins & Minerals, Muscle Care...Muscle Care, Dental & Breath Care
Breed SizeLarge Breeds, Giant BreedsExtra Small Breeds, Small BreedsLarge Breeds, Giant BreedsSmall BreedsLarge Breeds
Food FlavorChicken, PoultryChicken, PoultryChicken, PoultryChicken, PoultryLamb, Meat

Questions & Answers

21 Customer Questions

Where is Iam's manufactured? Where do the ingredients originate?
Answer by ChewySep 22, 2017
All of Iams dry dog food products sold within the United States are manufactured at their plants located in the United States. Their ingredients are carefully selected for the health and well-being of the pets they feed. For this reason, they're committed to sourcing ingredients from suppliers located near their manufacturing facilities when possible. Like most other pet food and human food companies, some vitamins and minerals are supplied by their trusted partners in China. Rest assured they're confident in the ingredient integrity of all of their suppliers because they demonstrate the ability to consistently meet the strict and thorough standards of their own Supplier Quality Assurance program, regardless of where they are located. As a key part of this program, their suppliers undergo frequent quality audits to ensure expectations are met.

Are the ingredients non-GMO?
Answer by ChewyJun 24, 2021
The ingredients in IAMS dog foods do not contain non GMO ingredients.

Are the kibbles the same size as the puppy ones? They look to be the same size on the picture.
Answer by ChewyMay 19, 2019
The kibble size will be a little bigger than the Iams ProActive Health Smart Puppy Large Breed Dry Dog Food.

what is the carb % please? thank you
Answer by ChewyMar 16, 2021
This recipe contains approximately 46.6% Carbohydrates on an as fed basis.

ReviewsWrite a Review

Rated 4.5507 out of 5 stars
690 Reviews
Would recommend to a friend

690 Customer Reviews

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Rated 4 out of 5 stars
By shamahack on Jan 20, 2023

For Goldens?

We started buying this because it had glucosamine in it and we were buying pills for our golden. So far so good. But her weight increased and as someone else said she is shedding a little more. We are going to stick to it and see if anything changes. Could be the weather.

Rated 5 out of 5 stars
By Penny on Dec 24, 2022

Finally Found One She Likes!

I tried several different dry foods, but she ate them half-heartedly. She's getting old, so she needed some glucosamine. She would spit the pills out, so I tried liquid. Didn't get much down her, but got it all over both of us. Finally, I found a food that she likes and she gets her glucosamine at the same time.

Rated 5 out of 5 stars
By Tammie on Nov 18, 2022

Amazing Food & Buy!

I have 2 fur-babies, an Aussie that weighs 40 lbs and a wired hair chihuahua that weighs 5 lbs. Plus I feed the neighbor's dog and he is a chocolate lab and weighs about 70 lbs. All 3 of these pets Love Iams food. My little 5 pounder takes the kibbles and carries them around the house to hide before the Aussie can "scarf" them down lol. I love that I have it on auto delivery and don't have to run to the store to get them food. Great job Chewy for providing this product and your auto delivery services!

Rated 3 out of 5 stars
By Elizabeth on Nov 22, 2022

Dog loves it but increases shedding

I switched my pittie to this food from purina pro plan (the brand my moms dog eats for her sensitive stomach) because it is cheaper while still being healthy. He loves it, but his shedding went from nonexistent to hair all over the place. I am not 100 percent sure this is due to the food, but we will be switching.

Rated 4 out of 5 stars
By Robin on Sep 25, 2022

Metal findings

I found this piece of metal in the bag of dog food. Now I'm scared to feed her this but it's all she'll eat as long as I put hamburger chicken with it. I'm still buying lines but I checked every handful. Chewy is one of the best places you can get your items from but always look in their food. I'm not saying it's chewy fault but you don't know who out. There is ignorant enough to put in an animals food from the factories. I would still recommend the product. But it can happen in any dog food. I'm only putting this here so everyone can keep an eye out. I was so shocked so just always look at what you're feeding your dog. Sorry I don't want to come off rude and if it sounds that way I apologize.

Rated 5 out of 5 stars
By Barb on Nov 18, 2022

Big dogs not

Neighbor has a huge dog. His coat is shiny. My dogs loves to visit for their treat of this. They're chi and chi mix. They're little loving this food. I hope their coat gets shiny like their buddy.

Rated 1 out of 5 stars
By rough on Nov 22, 2022

Poor Mastiff

My poor dog has had the worst time with food, caused him to have really bad loose stools. Pooping water and some blood. Would not recommend this product. Hoping to get my money back

Rated 5 out of 5 stars
By Mommy on Sep 21, 2022

Great dog food.

I love Iams dog food, have been using it for all our rescues and they seem to love it too. I also get the wet food too and add some to the dry dog food. In our rescues we had one a mutt who lived to be 23 years, another Belgian Malinois who lived 16&1/2 and our newest is 5 years old with no health problems. I am pretty sure the Iams diet kept them going.

Rated 5 out of 5 stars
By Vickii on Jan 17, 2023

Love this food

Just changed back to iams fed for first 2yrs then changed food. Only to give a change.

Rated 5 out of 5 stars
By Trippy on Aug 26, 2022

Our Son"s Dog, Charlie says Iams Large Breed is Yummy!Woof Woof!

Our Son, says Iams large breed for his Support Dog Charlie a 1 1/2 year old German Shephard loves this food as he was a rescue and trying to give him the necessary nutrients and protein that he needs, his Vet recommended it and it is what he raised his Black Lab Reagan on and lived to a wonderful age of 13 years old.