Iams ProActive Health Senior Plus Large Breed Dry Dog Food

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26.2-lb bag
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  • 26.2-lb bag
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Iams ProActive Health Senior Plus Large Breed supports healthy bones and joints and helps fight signs of aging with nourishing antioxidants to rejuvenate immunity to adult levels, so your senior dog can play young and stay young. Formulated with L-Carnitine to help burn fat, this formula also helps keep older dogs at a healthy body weight.

Key Benefits

  • Senior dry dog food that helps fight signs of aging in senior dogs and is formulated with L-carnitine to help ensure older dogs stay at a healthy weight
  • Specially formulated with protein sourced from chicken and egg to nourish healthy bones and joints, which is especially important for large breed dogs
  • Contains omega-6 & omega-3 fatty acids for healthy skin & a shiny coat and a targeted fiber blend including prebiotics and beet pulp for healthy digestion
  • Recommended for senior dogs 9 years and older that are over 50 pounds
  • Made in the USA!

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  • Item Number
  • Weight
    26.2 pounds
  • Breed Size
    Large Breeds, Giant Breeds
  • Food Form
    Dry Food
  • Lifestage

Nutritional Info


Chicken, Chicken By-Product Meal, Ground Whole Grain Corn, Ground Whole Grain Sorghum, Ground Whole Grain Barley, Brewers Rice , Dried Beet Pulp, Fish Meal, Natural Flavor, Dried Egg Product, Chicken Fat (preserved with mixed Tocopherols), Potassium Chloride, Dried Brewers Yeast, Caramel Color, Salt Sodium Hexametaphosphate, Calcium Carbonate, Fructooligosaccharides, Choline Chloride, Carrots, Tomatoes, Spinach, Vitamin E Supplement, DL-Methionine, Green Peas, Minerals (Ferrous Sulfate, Zinc Oxide, Sodium Selenite, Manganese Sulfate, Copper Sulfate, Manganous Oxide, Potassium Iodide), Beta-Carotene, L-Lysine Monohydrochloride, L-Tryptophan, 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), Fish Oil (preserved with mixed Tocopherols), L-Carnitine, Dried Blueberry Pomace, Mixed Tocopherols, Rosemary Extract, Citric Acid.

Caloric Content

3,503 kcal/kg, 303 kcal/cup

Guaranteed Analysis
Crude Protein 25.0% min
Crude Fat 12.0% min
Crude Fat 14.5% max
Crude Fiber 6.0% max
Moisture 10.0% max
Docosahexaenoic Acid 0.04% min
Calcium 0.95 % min
Phosphorus 0.75 % min
Vitamin E 150 IU/kg min
Beta-Carotene 12 mg/kg min
L-Carnitine 60 mg/kg min
Omega-6 Fatty Acids 1.67% min
Omega-3 Fatty Acids 0.25% 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

115 reviews 115 Reviews 4.9 out of 5 Stars

100% Recommend

100% of reviewersrecommend this product

4.9 / 5

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  • We love it!!

    By on

    10 1/2 years ago when our lab was a 3 month old puppy our vet recommended Iams dry dog food. He’s been eating it ever since and he loves Iams. We now feed him the Senior formula and we love that he likes the taste and we’d recommend this dog food to anyone and we recommend Chewy to everyone we meet who has a dog! Chewy is my favorite website for things for our dog.

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  • Great quality

    By on

    Love the home delivery service. The quality of food is excellent. One small hiccup was with my last order. It was delivered to my neighbors house so I had to haul two large heavy boxes up her stairs and over to my house. UPS must have had a new driver? I have recommended your service to many friends

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  • One brand for all

    By on

    Just switched to this brand because we have a brazilian mastiff who is 10 and an english mastiff who is 3 months old. I didnt feel right buying different brands of food. After lots of looking. This is one of the few afordable and easy to find foods that has large breed available for all ages of life. My dogs had no problem transitioning to the new food. They enjoy it. They weight has stayed normal.

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  • Good for older dogs

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    Our dog Brutus is 11 years old and starting to slow down a bit. The vet recommended switching to an Iams senior brand. Brutus loves the food and it seems to be helping him get along day to day better.

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  • Lenny loves Iams

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    I have a retired Seeing eye dog Lenny. He came to me with hip problems and could no longer service his owner. He was on the regular Iams food his whole life. I switched him to Iams Senior and we can see a hidden puppy in him. He is doing great!

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  • Great Service

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    Tried Chewy for the first time and I must give it a two thumbs up. Good prices per lb.compared to grocery stores and delivered quickly and no hassle! I think we found a new way to shop our dog foods

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  • Furrbaby loves it.

    By on

    I have a 13 yr. Old black lab and she can be a picky eater but this iams food she loves it and its tiny pieces are great for her. I would definitely recommend this food for your senior furrbaby

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  • Iams for life

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    I have been feeding my dogs and cats Iams for around 20 years. I recently tried to feed a very popular very expensive no grain brand. My dogs and cats would not eat it I immediately switch back to Iams. They all been on Iams since puppies and kittens now as adults and seniors. They all grew to be strong and healthy with no stomach or skin issues I don't believe I would ever try another brand of dog or cat food we are Iams customers for life

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  • Our Sheltie loved it

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    Great service right to our front door. Very helpful for the elderly, tired, retired, and lazy, like me.

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  • Our Senior Lab Loves It!

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    Sidney Patrick O'Leary our almost 14 year old chocolate lab has had some rough issues lately as far as his eating habits & bowels. We have decided he likes this best of all. So his wish is our command.

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