IAMS Proactive Health Healthy Weight Management Large Breed Low Fat Formula with Real Chicken Adult Dry Dog Food, 29.1-lb bag - Chewy.com

Iams ProActive Health Adult Healthy Weight Large Breed Dry Dog Food

By Iams
Rated 4.4889 out of 5 stars

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$46.98Chewy Price
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About This Item


  • Specially crafted for large breed adult dogs.
  • Chicken is the #1 ingredient in this scrumptious recipe.
  • Glucosamine and chondroitin help maintain bone and joint health.
  • L-carnitine helps support a healthy metabolism and weight control.
  • Helps with healthy weight management and control by delivering 17% less fat than the IAMS Minichunks recipe.

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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, Ground Barley, Ground Whole Grain Corn...Chicken, Ground Barley, Ground Whole Grain Corn...Chicken, Rice Flour, Chicken By-product Meal...Lamb, Chicken By-Product Meal (source of Glucosamine and Chondroitin Sulfate), Ground Barley...
Special DietWeight Control, With Grain, Low FatWeight Control, With Grain, Low FatWith GrainHigh-Protein, Natural, With GrainWith Grain
Health FeatureDental & Breath CareDental & Breath CareMuscle Care, Dental & Breath Care, Vitamins & MineralsHigh-Energy, Immune Support, Muscle Care...Muscle Care, Dental & Breath Care
Breed SizeLarge Breeds, Giant BreedsSmall Breeds, Medium Breeds, Large Breeds, All BreedsLarge Breeds, Giant BreedsLarge Breeds, Giant BreedsLarge Breeds
Food FlavorChicken, PoultryChicken, PoultryChicken, PoultryChicken, PoultryLamb, Meat

Questions & Answers

10 Customer Questions

When do you anticipate this item being back in stock?

About how many cups of food are in the 29 pound bag?
Answer by ChewyMay 14, 2019
There will be approximately 4 cups of kibble per pound. The 15 pound bag will have close to 60 cups and the 29.1 pound bag close to 116.4 cups.

Are these big chunks or little like the green bag
Answer by ChewyJul 13, 2022
This recipe has a oval-shaped kibble that is approximately 6 - 8 millimeters in thickness and approximately 15.5-17.5 millimeters in diameter.

What is the mg of the Glucosamine and chondroitin in the new Iams large breed weight control formula?
Answer by ChewyMay 21, 2022
This recipe has a minimum glucosamine content of 350 milligrams per kilogram and a minimum chondroitin sulfate content of 35 milligrams per kilogram.

ReviewsWrite a Review

Rated 4.4889 out of 5 stars
135 Reviews
Would recommend to a friend

135 Customer Reviews

Filter by reviews that mention

Rated 2 out of 5 stars
By Unsure on Jan 31, 2023

Suspicious Amount of Food

This last 29.1 lb bag received today completely fit in our 25 lb food holder. This has NEVER happened, we can never fit the bag in and always have the bag with more food in it set to the side. It poured completely in this time WITH ROOM REMAINING. I feel like the food quantity was definitely compromised this time and we were jipped food. Very suspicious!!

Rated 5 out of 5 stars
By meesersmom on Aug 2, 2022

Great weight loss diet

I have 2 obese Labradors. Since I have started feeding this food, their weight loss is noticeable. And they actually like the food! No problem getting them to change and eat new food. Chewy is always prompt and accurate with their orders. I usually have boxes on my doorstep within 2 days of ordering.

Rated 5 out of 5 stars
By rcdj on Oct 26, 2022

Moldy Food in my October shipment

I've used Iams for years but this last shipment was a bust. Both bags had moldy food in them.

Rated 5 out of 5 stars
By Sandy on Nov 19, 2022

Love isms weight loss large breed

Have used this for all of my Labrador retriever. It is the best

Rated 5 out of 5 stars
By Ralphsdad on Nov 30, 2022

Iams Pro active

Our ralphy loves this food, and has helped with weight loss.

Rated 5 out of 5 stars
By Betty on Jul 24, 2022

Iams dog food

Food arrived In a box, no damage to box I trust Iams dog food, just switched to this type because my girl needs to loose some weight!love having my heavy dog food bags delivered to my door!

Rated 4 out of 5 stars
By Breezy on Sep 6, 2022

Quality Food!

My dogs seem to like it, I just have not seen a difference in weight loss just yet. This is my first bag though!

Rated 5 out of 5 stars
By patty on Sep 22, 2022

iams healthy weight

great food....dog likes it....doesn't get sick from it......gentle on her stomach

Rated 5 out of 5 stars
By TxMomX3 on Jul 19, 2022

Our GSD has enjoyed this for more than a year.

Our dog's activity level wasn't quite matching up with his diet, so this food was a great opportunity to balance the scales.

Rated 5 out of 5 stars
By Newfmom on Apr 28, 2022

Looks like it is working!

My 8 year old Newf girl was packing on some weight, so it was time for some action! It has been approx. a month now & I'd say I do already see some weight loss. Another good point is that she really likes this food!