Iams Proactive Health Large Breed Adult Lamb & Rice Recipe Dry Dog Food, 40-lb bag

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About This Item

Details

  • Specially formulated for large breed dogs with a larger kibble size and targeted nutrition for whole-body health.
  • Optimal calcium levels and natural sources of glucosamine and chondroitin support your big pup’s bones and joints.
  • High-quality protein from lamb and egg supports lean, strong muscles in large breed dogs.
  • Includes 7 essential nutrients to support a healthy heart.
  • IAMS Proactive Health recipes are scientifically formulated to support 5 key areas of your dog’s health, promoting a full and healthy life.

Ingredient Information

Feeding Instructions

Full Range to Support Health for Life

Tailored to support your dog’s health for life, these high-quality, premium recipes are made in the USA with the finest ingredients from around the world. It’s nutrition that brings out your dog's best!

Support at Every Stage

IAMS Puppy food was created to meet the nutritional needs of puppies as they grow up, while IAMS Adult dog food supplies the nutrition your best friend needs through adulthood. IAMS senior formula supports healthy aging in your mature dog.

Tailored Nutrition

IAMS Healthy Aging Chicken & Whole Grain Recipe contains:

  • No artificial flavors
  • No fillers
  • No artificial preservatives

Mix it Up!

Mix IAMS wet dog food with IAMS dry food for an unforgettably flavorful and nutritionally balanced meal. It helps support whole-body health, with a flavor and texture your buddy will love.

About IAMS

With over 70 years of excellence in product development for cats and dogs at every life stage, IAMS has been a leader in pet nutrition. Through extensive research and dietary expertise, they’ve developed a variety of diets designed to support health.

Shop IAMS

Questions & Answers

4 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!

How big is the kibble?

Answer by ChewyJan 02, 2026
This recipe has a kibble that is approximately 6/8 inches in diameter.

What is the vitamin E content?

Answer by ChewyJan 14, 2026
The Vitamin E content is approximately 192.20 IU/kg as fed.

Does this food contain probiotics?

Answer by ChewyJun 21, 2023
This food does not contain probiotics.
4.6
Rated 4.6 out of 5 stars
966 Ratings

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Digestibility

84% Positive

Ingredients

84% Positive

Nutritional Value

86% Positive

Palatability

83% Positive

298 Customer Reviews



Rated 5 out of 5 stars
By Debbie on Jan 8, 2026

Freaky Fast Delivery!

CHEWY!! I am forever grateful for the fast delivery!! We are very rural and have a hard time finding our preferred brand and flavor of dog food. You came through

CHEWY!! I am forever grateful for the fast delivery!! We are very rural and have a hard time finding our preferred brand and flavor of dog food. You came through like a champ!!


Rated 4 out of 5 stars
By Jenni on Nov 24, 2025

Large Size Kibble

Gus loved the flavor but this was his first adult food and the larger sized kibble was a little too much for his tummy. This was not a brand or product issue at

Gus loved the flavor but this was his first adult food and the larger sized kibble was a little too much for his tummy. This was not a brand or product issue at all. We are moving back to Blue Buffalo for the smaller bites even though he's a bigger dog. It's just what we are used too. The Iams is great value for the money though!


Rated 5 out of 5 stars
By Peggy on Oct 14, 2025

My large dog likes it.

I bought this for my big dog, I think when was on sale. He likes this large kibble dog food, unfortunately all dog food and other animals food is all too high priced

I bought this for my big dog, I think when was on sale. He likes this large kibble dog food, unfortunately all dog food and other animals food is all too high priced. I have quite a many pets as most people do, and it all just costs too much. A cat that has taken up here was sitting out when I was feeding my dog this and gave the cat a piece of it and now he is always going with me out there to get some pieces, he likes it better than the cat food. It must be good.


Rated 3 out of 5 stars
By Teresa on Dec 2, 2025

The chunks

My husky a picky eaters but he likes the bigger chunks. He just doesn't like this flavor. I will get the chicken next time. I was trying a different flavor with

My husky a picky eaters but he likes the bigger chunks. He just doesn't like this flavor. I will get the chicken next time. I was trying a different flavor with the lamb. He's not a fan.


Rated 4 out of 5 stars
By Christine on Nov 12, 2025

Good food

This works well for my English cream golden retriever, who has a sensitive gut, his stool stay firm, however, he does get bored with it, so Iwill enhance it with

This works well for my English cream golden retriever, who has a sensitive gut, his stool stay firm, however, he does get bored with it, so Iwill enhance it with vegetables or chicken or sardines, and he eats it right up!


Rated 5 out of 5 stars
By Debi on Dec 24, 2025

Love Iams

There was alot of itching going so I thought I would try switching out their food. It worked and they love it! Thanks Iams!

There was alot of itching going so I thought I would try switching out their food. It worked and they love it! Thanks Iams!


Rated 5 out of 5 stars
By Dina on Sep 24, 2025

Even my picky eater likes it

I switched to this brand after having issues with another one. those bags always came with broken pieces and lots of powder at the bottom that made my dogs cough

I switched to this brand after having issues with another one. those bags always came with broken pieces and lots of powder at the bottom that made my dogs cough and choke. This food arrived in perfect condition, with the kibble whole and no mess. Such a relief. No problems switching over.


Rated 5 out of 5 stars
By joann on Jan 5, 2026

My dogs love it

Appreciate the quality of Iams and the reasonable cost especially with 3 large breed dogs

Appreciate the quality of Iams and the reasonable cost especially with 3 large breed dogs


Rated 4 out of 5 stars
By Kristin on Oct 6, 2025

Approved by picky eaters

I have two giant breed dogs. They can be very picky eaters. It's also important for them to have larger sized kibbles or half the food ends up in the floor. Both

I have two giant breed dogs. They can be very picky eaters. It's also important for them to have larger sized kibbles or half the food ends up in the floor. Both dogs like this better than the Iams Large Breed chicken.


Rated 5 out of 5 stars
By Kathy on Nov 11, 2025

Customer Service

Chewy is top notch in service and pricing. I love the Convenience of shopping for quality items and it being delivered to my front door.

Chewy is top notch in service and pricing. I love the Convenience of shopping for quality items and it being delivered to my front door.