IAMS Proactive Health Large Breed with Lamb & Rice Adult Dry Dog Food, 15-lb bag - Chewy.com

Iams Lamb & Rice Recipe Large Breed Dry Dog Food

By Iams
Rated 4 out of 5 stars

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$29.98Chewy Price
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This Item - Iams Proactive Health Large Breed with Lamb & Rice Adult Dry Dog Food, 15-lb bag
Rated 4 out of 5 stars
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New Customers Only: Spend 49+ Get $20 Off

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About This Item


  • Lamb is the main ingredient in this drool-worthy recipe.
  • Made specifically for large breed, adult dogs.
  • Formulated with natural fiber and prebiotics to support a healthy digestion.
  • Contains omega-6 fatty acids to support skin and coat health.
  • This protein-rich recipe helps support your large dog’s muscles.

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Nutritional Information

Feeding Instructions

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 IngredientsLamb, Chicken By-Product Meal (source of Glucosamine and Chondroitin Sulfate), Ground Barley...Lamb, Chicken Meal, Rice Flour...Chicken, Rice Flour, Chicken By-product Meal...Beef, Beef Meal, Soybean Meal...Lamb (Source of Glucosamine), Rice Flour, Whole Grain Corn...
Special DietWith GrainHigh-Protein, Natural, With GrainHigh-Protein, Natural, With GrainGluten Free, With GrainHigh-Protein, Natural, With Grain
Health FeatureMuscle Care, Dental & Breath CareAppetite Stimulation, High-Energy, Immune Support...High-Energy, Immune Support, Muscle Care...Digestive Health, Muscle Care, Vitamins & MineralsDental & Breath Care, Skin & Coat Health, Digestive Health...
Breed SizeLarge BreedsExtra Small Breeds, Small BreedsLarge Breeds, Giant BreedsSmall Breeds, Medium Breeds, Large Breeds, All BreedsSmall Breeds, Medium Breeds, Large Breeds, All Breeds
Food FlavorLamb, MeatLamb, MeatChicken, PoultryBeef, MeatLamb, Meat

Questions & Answers

1 Customer Questions

How many cups are in a 30 pound bag?
Answer by bubblesJan 09, 2022
4 cups per pound so the math would equal 120 cups per 30 lb bag!

ReviewsWrite a Review

Rated 4 out of 5 stars
45 Reviews
Would recommend to a friend

45 Customer Reviews

Filter by reviews that mention

Rated 5 out of 5 stars
By WitchyWoman on Dec 28, 2022

Great food - my dog loves it!

My Great Pyrenees loves this dog food. He is not good motivated, and I usually have to buy some toppings so he would eat his food. With Iams, he can’t wait to eat his food - no toppings needed. I wish I’d switch a long time ago. I was buying Hill Science for my dogs for year but the price have gotten ridiculous. My dogs love this food. I’m glad I switched!

Rated 3 out of 5 stars
By JoJo on Nov 20, 2022

Dogs won't eat it

I used to buy Purina Pro Plan Large breed until the price shot up. I switched to Iams Large breed Chicken and Rice and my dogs ate it but not as eagerly as the Purina Pro Plan. Chewy was out of the big bag of Iams Chicken and Rice so I thought I would give the Lamb and Rice a shot. My dogs won't touch it. It's been two days since they ate any dog food so I will need to run out and find a bag of the Chicken and Rice for them.

Rated 5 out of 5 stars
By bradyb on Dec 1, 2022

lamb and rice

I use this for rewards and they love it. my dogs come in when callled ,sit and i give them reward. i use this for 4 dogs, 3 are mine and one is a daycare dog. everyone is happy ,mostly me. i feed this to my adopted Greyhounds and there was never an issue with the food quality or their health.

Rated 1 out of 5 stars
By Angel on Dec 27, 2022

Dog hates the food and has bloody stools from it!

Definitely do not recommend. My dogs coat and poor behind have suffered from this food. So hard to find a healthy dry food for dogs that isnt $50 a bag

Rated 5 out of 5 stars
By Mason on Dec 30, 2022

Stopped itching.

My poor babies were itching and scratching and all red on there tummy's. Switched to Iams. Itching/scratching and the redness has gone.

Rated 1 out of 5 stars
By Buster on Jan 14, 2023

Iams Lamb & Rice

Our 150lb. Akita & 95lb. German Sheppard will not eat this food. Will have to go back to chicken or beef.

Rated 4 out of 5 stars
By Harry on Nov 25, 2022

Great But

Love Chewys service and availability of products BUT a 30 pound bag and 24 cans of dog food is TOO MUCH for one box. Give the carrier and the senior customer a break.

Rated 5 out of 5 stars
By Samrnicu on Nov 11, 2022

Best nutrition for your fur baby!!

Iams has been a staple for good quality nutrition and price for our fur babies since I worked for a vet since 1989. It's worth the piece of mind for a long healthy life

Rated 5 out of 5 stars
By Amyb on Jan 24, 2023

Large pieces

My dogs love it. The pieces are large. It seems to take less to fill them up.

Rated 5 out of 5 stars
By fatjack2 on Dec 25, 2022

Really Good

Great service, and the dogs like it. The food came right on time. The prices are good as well