Iams ProActive Health Mature Adult Large Breed Dry Dog Food

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30-lb bag
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  • 30-lb bag
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Iams ProActive Health Mature Adult Large Breed nurtures your dog’s bones and joints through specially formulated nutrition with natural sources of glucosamine blended with fat burning L-Carnitine to help keep him fit, active and living large. This Iams ProActive Health formula also has prebiotics that work inside the digestive tract to promote healthy digestion and strong defenses.

Key Benefits
  • Complete and balanced dry dog food for mature dogs that help maintain bone & joint health as well as a healthy weight to keep your pup living large!
  • Made with protein sourced from chicken and egg to build strong, firm muscles and prebiotics to promote healthy digestion and strong defenses
  • Includes L-carnitine to help keep your pup at a healthy weight
  • Recipe features an exclusive antioxidant blend to help boost the immune response of your dog to healthy levels
  • Designed for dogs 5-8 years old that weigh over 50 pounds

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  • Item Number
  • Weight
    30.0 pounds
  • Breed Size

    Large Breeds, Giant Breeds

  • Food Form

    Dry Food

  • Lifestage


Nutritional Info

Ground Whole Grain Corn, Chicken By-Product Meal, Chicken, Ground Whole Grain Sorghum, Dried Beet Pulp, Ground Whole Grain Barley, Dried Egg Product, Chicken Flavor, Chicken Fat (preserved with mixed Tocopherols), Dried Brewers Yeast, Potassium Chloride, Flaxseed, Caramel Color, Salt, Sodium Hexametaphosphate, Calcium Carbonate, Choline Chloride, Carrots, Tomatoes, Fructooligosaccharides, Spinach, Green Peas, L-Lysine Monohydrochloride, Minerals (Ferrous Sulfate, Zinc Oxide, Sodium Selenite, Manganese Sulfate, Copper Sulfate, Manganous Oxide, Potassium Iodide), Vitamin E Supplement, DL-Methionine, L-Tryptophan, Beta-Carotene, Dried Apple Pomace, Vitamins (Ascorbic Acid, Calcium Pantothenate, Vitamin A Supplement, Biotin, Thiamine Mononitrate (source of Vitamin B1), Vitamin B12 supplement, Niacin, Riboflavin Supplement (source of Vitamin B2), Inositol, Pyridoxine Hydrochloride (source of Vitamin B6), Vitamin D3 Supplement, Folic Acid), Dried Blueberry Pomace, L-Carnitine, Mixed Tocopherols, Rosemary Extract, Citric Acid.

Caloric Content

3,441 kcal/kg, 343 kcal/cup

Guaranteed Analysis
Crude Protein 26.0% min
Crude Fat 10.0% min
Crude Fat 12.5% max
Crude Fiber 5.0% max
Moisture 10.0% max
Calcium 0.75 % min
Phosphorus 0.70 % min
Vitamin E 140 IU/kg min
Beta-Carotene 10 mg/kg min
L-Carnitine 30 mg/kg min
Omega-6 Fatty Acids 1.78% min
Glucosamine 350 mg/kg min
Chondroitin SulFate 35 mg/kg min
Feeding Instructions
Weight Daily Feeding
50 lbs 2 3/4 - 3
60 lbs 3 - 3 1/2
70 lbs 3 1/4 - 3 3/4
80 lbs 3 1/2 - 4 1/4
100 lbs 4 1/4 - 4 3/4
120 lbs 4 3/4 - 5 1/2
Transition Instructions

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.


The IAMS Nutritional Difference

IAMS asks you to try their dog food and look for the visible differences their food can make. The difference you'll see in your pet's health comes directly from the nutrients and vitamins you're putting into his bowl every day. IAMS is formulated with premium protein, a unique fiber blend and a customized mix of protein and carbs. The result is a diet that promotes skin and coat health, supports digestive health and gives him energy for all kinds of playful moments.

IAMS Adult Cat Food Products
Healthy Digestion

Healthy Digestion

Getting the right amount and type of fiber is important for your dog's digestive health. IAMS uses a proprietary fiber blend that includes prebiotics and beet pulp. Prebiotics feed the good bacteria in the gut, and beet pulp is a great fiber source that helps the body absorb vital nutrients. Every IAMS recipe is tailored to your dog's nutritional needs with the proper level and right kind of fiber for healthy digestion.

Ideal Energy Levels

IAMS delivers a customized mix of protein and carbs to keep your dog energized and ready for running and playing. Dogs need a diet that's high in animal proteins and fat, with an ideal ration of protein to carbohydrates to maintain a healthy energy level. Dogs on IAMS are getting essential amino acids, plus the amount of carbs they need for fetching toys and retrieving slippers.

Ideal Energy Levels
Healthy Skin and Coat

Healthy Skin and Coat

The best way to keep your dog's skin and coat looking their best is through a complete and balanced diet filled with key nutrients. Vitamins, minerals, protein and fat all play a big role in promoting excellent skin and coat health. IAMS includes vitamins A, E, C and B2, as well as biotin, zinc, copper and fatty acids from fish oil to nourish your dog's skin and help his coat flourish.

Backed by a Satisfaction Guarantee

IAMS is so sure that you'll see a visible difference in your pet that they back their food with a 100% satisfaction guarantee. Their recipes are formulated based on years of research and a dedication to keeping pets healthy through proper nutrition. IAMS believes that the right diet can do amazing things for your pet's health, like aid in weight loss, promote good digestion and increase energy levels.

100% satisfaction guarantee

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.


About IAMS
Customer Reviews
38 Reviews 38 Reviews 4.7 out of 5 Stars

92% Recommend

92% of reviewersrecommend this product

4.7 / 5

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Showing 1-10 of 38 Reviews

  • Amazing!!!

    By on

    Iams has been great for our dogs! Having three older dogs that live inside we need food that won’t upset their stomach and will help with their overall diet! Highly recommend this dog food!

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  • Discontinued

    By on

    I preferred the prior product I was buying....Science Diet for older dogs needing extra joint care. We'll see how this goes but know that IAMS is a good product too.

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  • Highly Recommend

    By on

    Iams is an excellent dog food. There is a diet for all life-stages and breed size. My dogs coat shines, healthy skin and low stool out put. AND he loves it!

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  • Iams Proactive Health Mature Adult dry dog food.

    By on

    Dog had suddenly turned up his nose at the old brand he was being served after years on it. Tried this stuff with a small bag locally, and he went for it. 11 year old Chow-Golden mix. 90 lbs. Coat looks great, and he can't wait for the bowl to get put down.

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  • We Love Chewy!

    By on

    Every order ships to us within 1-2 days. We've always been very satisfied with everything we order. My dogs know when there is a package arriving for them and they wait to see what's inside. Thanks to all of you who make this all possible. You're the best.

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  • Good stuff!

    By on

    I've been very pleased with this dog food. Both of my dogs appear to enjoy it. There was only a short transition from their old dog food to this one; no diarrhea and healthy poops thus far.

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  • My dogs love it!

    By on

    My older dog seems more alert and spunkier, and the younger in full of energy. Great dog food.

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  • Love this product and company

    By on

    Our Rottie loves her Iams. I love it because the chunks are bigger and make less mess!

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  • No upset stomach

    By on

    I have 3 dogs all over 5 years old. I transitioned all of them to this food for mature dogs and it was so easy. No upset stomachs, no change in vowel habits.

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  • love Iams dog food

    By on

    No complaints! Just switched to this mature after my dog turned 6. Never had any issues with IAMS. I LOVE Chewy.com and highly recommend them for everything!

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