Iams ProActive Health Smart Puppy Large Breed Dry Dog Food
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Give your large-breed puppy a giant head start in life with IAMS Large Breed Puppy Dry Dog Food for Large Dogs with Real Chicken. This puppy food has been formulated to support the nutritional needs of your growing large-breed pup. It features real farm-raised chicken as the first ingredient—a premium protein to help your little pal develop strong muscles as she grows bigger. It also features 22 key nutrients that your pup would get from her mother’s milk—including omega 3 DHA to help her be the smartest pooch on the block. It’s just what your puppy needs to help her grow into the big and healthy dog she’s meant to be!
Key Benefits- This puppy food is formulated to support the nutritional needs of large-breed puppies.
- Features real farm-raised chicken as the first ingredient.
- Premium-sourced protein helps your pup develop strong muscles.
- Features 22 key nutrients—like the ones your puppy would find in her mother’s milk.
- Includes omega 3 DHA to help cognition—encouraging a smarter and more trainable pup.
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Item Number63946
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Weight30.6 pounds
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LifestagePuppy
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Breed SizeLarge Breeds, Giant Breeds
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Food FormDry Food
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Special DietN/A
Chicken, Ground Whole Grain Corn, Chicken By-Product Meal, Ground Whole Grain Sorghum, Corn Gluten Meal, Dried Plain Beet Pulp, Natural Flavor, Fish Oil (Preserved with Mixed Tocopherols), Dicalcium Phosphate, Salt, Brewers Yeast, Dried Egg Product, Carrot, Potassium Chloride, Caramel Color, Vitamins (Vitamin E Supplement, Ascorbic Acid, Calcium Pantothenate, Biotin, Thiamine Mononitrate (source of Vitamin B1), Vitamin B12 Supplement, Vitamin A Supplement, Niacin, Riboflavin Supplement (source of Vitamin B2), Pyridoxine Hydrochloride (source of Vitamin B6), Vitamin D3 Supplement, Folic Acid), Minerals (Ferrous Sulfate, Zinc Oxide, Sodium Selenite, Manganese Sulfate, Manganous Oxide, Potassium Iodide) Choline Chloride, Chicken Fat (Preserved with Mixed Tocopherols), L-Lysine, Fructooligosaccharides, Calcium Carbonate, Mixed Tocopherols (Preservative), Rosemary Extract.
Caloric Content3,586 kcal/kg, 373 kcal/cup
Guaranteed Analysis | |
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Crude Protein | 27.0% min |
Crude Fat | 14.0% min |
Crude Fiber | 4.0% max |
Moisture | 10.0% max |
Docosahexaenoic Acid | 0.1% min |
Calcium | 1.2% min |
Phosphorus | 0.8% min |
Selenium | 0.35 mg/kg min |
Vitamin E | 60 IU/kg min |
Omega-6 Fatty Acids | 2.25% min |
Omega-3 Fatty Acids | 0.45% min |
Glucosamine | 350 mg/kg min |
Chondroitin Sulfate | 35 mg/kg min |
Weight | Weening Pups up to 3 months | 3 - 6 months | 6 - 9 months | 9 - 12 months | 12 - 24 months |
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5 lbs | 1 1/4 | – | – | – | – |
10 lbs | 2 | 1 3/4 | – | – | – |
15 lbs | 2 2/3 | 2 1/3 | – | – | – |
20 lbs | 3 1/3 | 3 | 2 1/2 | – | – |
30 lbs | 4 1/2 | 4 | 3 1/3 | 2 3/4 | – |
40 lbs | 5 2/3 | 5 | 4 1/4 | 3 1/2 | 3 |
50 lbs | 6 2/3 | 5 3/4 | 5 | 4 | 3 1/2 |
60 lbs | 7 2/3 | 6 2/3 | 5 2/3 | 4 2/3 | 4 |
70 lbs | – | 7 1/2 | 6 1/3 | 5 1/4 | 4 1/2 |
80 lbs | – | 8 1/4 | 7 2/3 | 5 3/4 | 5 |
100 lbs | – | 9 3/4 | 8 1/4 | 6 3/4 | 5 3/4 |
120 lbs | – | – | 9 1/2 | 7 3/4 | 6 2/3 |
Start by mixing 25% new food with 75% of the current formula. Slowly change the proportions over the next 3 days or so by gradually increasing the new food and lessening the amount of the current food. At the end of the weaning process, you should be feeding 100% of the new food.

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 Dog Nutrition: Formulas for Dogs of All Ages and Sizes
ANY AGE, ANY SIZE
IAMS is suitable for dogs of all ages and sizes – from nourishing growing puppies to giving seniors the nutrition they need to thrive.
SKIN & COAT HEALTH
Every wag-worthy recipe is specially formulated with key ingredients like omega-6 fatty acids to promote healthy skin and a glossy coat.
SPECIALIZED NEEDS
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.

Customer Reviews
94% Recommend
94% of reviewersrecommend this product
You've Already Reviewed This Item
481 Reviews
Showing 1-10 of 481 Reviews
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Iams an improvement
By JodiG on Feb 6, 2021
My 6month old Great Pyrenees puppy BRONSON started off w a Purina large breed puppy food. He was having some diarrhea and some vomiting and pooping 10times a day. It made potty training nearly impossible. Since we switched to Iams this has all resolved itself and he seems to be thriving. He's growing steadily and simply loves the Iams Large Breed Formula. Thank you Chewy for making life easier! JODI
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Poopy Chow
By MSCW on Feb 16, 2021
My 6 month old golden retriever puppy was suffering with regular diarrhea. When I read the other reviews for this brand of large breed puppy food there were suggestions that this might be the cause. And yes this was it. Don't let your puppy suffer one day longer..... switch food.
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Fees to ship
By Dash on Jan 31, 2021
I can purchase the same thing locally at the same price and not pay shipping which ads 8 dollars so not a better deal and no wait time. I thought online was supposed to be cheaper because less ovehead
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so far so good
By Milo on Feb 6, 2021
From a recommendation, we began transitioning our 9 week old to this food. So far so good. No tummy issues. I’m looking forward to him growing with a shiny coat.
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Buddy comes home
By Danes on Dec 30, 2020
I will be getting my third great dane on 1/30/21. He is about 1000 miles from me and his name is Buddy. Big brother Petey and Big Sister Gigi will have their paws full with their new baby brother. Breeder recommended IAMS Large Breed Puppy for a starter .
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Not the best - Not the worst
By Elizabeth on Dec 4, 2020
We switched to this brand because we had problems with Purina Pro Large Breed Puppy. (We have 3 Great Danes who are under 12months). They love this food and it doesn't cause any stomach issues like other brands. The only problem, they are constantly starving on this food. We are switching once again. I believe this would probably be okay for any regular sized dog, just not for a growing Dane.
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Great food, great delivery
By Vicj on Dec 12, 2020
We have two large malamutes and now six puppies. We rely on this food to keep our dogs healthy (plus some raw chicken also). These bags are large and having them Shipped is GREAT! I also have Chewey ship food for my mom’s dog because she can’t get out to buy it - (Or carry it).
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Great food
By Cheyanne on Jan 3, 2021
I will always recommend Iams for people who want quality dog food without shelling out a bunch of money. My dog is now 1 and on adult food but he was always such a happy and healthy pup.
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It’s going to be a no for me
By GSDpup on Jan 19, 2021
Wanted to try this from our usual Purina ONE and my pup is not a fan. Gives him terrible gas and needs to drink water bowl after water bowl
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Great Service
By GDad on Jan 5, 2021
So great to get my pup's food delivered to the front door. Prices for this food were lower than our local grocery store. Would definitely recommend.