Iams Proactive Health Healthy Aging Large Breed Mature & Senior Formula with Real Chicken Dry Dog Food

By Iams
Rated 4.3032 out of 5 stars


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$46.98 Chewy Price
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About This Item


  • This dog food is formulated to support the nutritional and wellness needs of your large-breed senior dog.
  • Features real farm-raised chicken as the first ingredient.
  • Formulated with key nutrients to support bone and joint health.
  • Contains antioxidants for immune system support.
  • Includes a wholesome blend of prebiotics and fibers to help promote a healthy digestive system.

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Nutritional Information

Feeding Instructions

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Learn More About Iams From Our Team of Experts

Frequently Bought Together

Milk-Bone Original Large Biscuit Dog Treats, 10-lb box
Rated 4.6149 out of 5 stars
$14.98Chewy Price
Total Price: $90.52

About IAMS Dog Food

Keep Your Dog at His Best

IAMS knows that each dog is unique. Your dog’s distinctive lifestyle and specific dietary needs mean he can benefit from tailored nutrition. Select from a variety of IAMS dog food options to ensure your best friend gets exactly what he needs to be his best.

Tailored Nutrition for Life

Your dog’s dietary needs and lifestyle will change as he grows from puppy to adult to senior dog. That’s why IAMS has a tailored recipe for every moment along the way. The IAMS goal is to keep your dog healthy for life, ensuring he gets exactly what he needs even as those needs change.

Vets Recommend IAMS

Many veterinarians recommend IAMS for dogs at every life stage. When you feed your dog IAMS dog food, you can feel confident about the nutrition in every bowl and know your dog is getting the most out of each meal.

Complete and Balanced

IAMS dog food varieties are 100% complete and balanced. This means that no matter where your furry friend is in life, he’ll get all the healthy, essential nutrients he needs in one delicious meal. As your dog grows or his dietary needs change, IAMS has formulas to meet those needs at each and every life stage.

Formulated for Your Dog’s Size and Age

Whether your dog is big, small, young or old, IAMS has the right food for him. A variety of formulas for specific breed sizes, ages and health needs means it’s easy to find the most nutritious IAMS dog food for your pup. The recipes come in a range of delicious dry kibble and wet food flavors to satisfy every taste, too!

Made With Quality Ingredients

Nutrition doesn’t have to come at the cost of taste. That’s why IAMS creates delicious food made with high-quality ingredients for flavor and nutrition. Whether you choose an IAMS dog food made with lamb or chicken, you can rest assured knowing the protein comes from a quality source. Each recipe has all the best ingredients for your dog’s health, along with a taste he’s sure to enjoy.

About IAMS

IAMS knows that every pet is unique, and that your pet deserves food that’s just as unique as he is. With IAMS, you can find a range of delicious foods designed with your pet’s specific nutritional needs in mind. With varied recipes for cats and dogs that offer tailored nutrition, IAMS is committed to keeping pets healthy for life.


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Top IngredientsChicken, Chicken By-Product Meal (source of Glucosamine and Chondroitin Sulfate), Ground Barley...Chicken, Chicken By-Product Meal, Ground Barley...Chicken, Rice Flour, Corn Gluten Meal...Lamb, Chicken Meal, Brown Rice...Chicken, Turkey, Chicken Meal (Natural Source Of Glucosamine And Chondroitin Sulfate)...
Health FeatureBrain Health, Dental & Breath Care, Skin & Coat Health, Muscle CareBrain Health, Dental & Breath Care, Skin & Coat HealthBrain Health, Digestive Health, High-Energy...Digestive Health, Immune Support, Muscle Care
Special DietLow Fat, With GrainLow Fat, With GrainHigh-Protein, With GrainWith GrainNo Corn No Wheat No Soy, With Grain
Breed SizeLarge Breeds, Giant BreedsSmall Breeds, Medium Breeds, Large Breeds, All BreedsSmall Breeds, Medium Breeds, Large Breeds, All BreedsSmall Breeds, Medium Breeds, Large Breeds, All BreedsSmall Breeds, Medium Breeds, Large Breeds
Food FlavorPoultry, ChickenPoultry, ChickenPoultry, ChickenMeat, LambPoultry, Chicken, Turkey
Food FormDry FoodDry FoodDry FoodDry FoodDry Food

Questions & Answers

13 Customer Questions

Is Iams made in the U.S.A.?
Answer by ChewyMay 07, 2018
This product is made in the United States.

What is the size of the kibble pieces?
Answer by ChewyJul 14, 2020
The kibble size for the Iams ProActive Health Mature Adult Large Breed Dry Dog Food is approximately 5.0-7.0 millimetres thick and 13.0-15.5 millimetres in diameter.

How many cups/servings are in this bag?
Answer by ChewyJun 16, 2018