Iams ProActive Health Adult Optimal Metabolism Dry Cat Food

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7-lb bag
  • 3.5-lb bag
  • 7-lb bag
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Iams is committed to helping dogs and cats live long, healthy lives through innovative nutrition that truly makes a difference. 

Quality is at the core of Iams business. When it comes to their products, they only use high quality ingredients. The nutritional difference is not only based on years of research and dedication to the health of pets. It comes from a different, innovative way of thinking about the dietary requirements and behaviors of dogs and cats and about a breakthrough approach to the value of advanced nutrition.

Energizing and Slimming Through Complete Nutrition Iams Weight Control is the healthy way to help pets lose weight without losing energy. Formulated with 10% less fat than Original formulas, this vet-recommended diet contains a special blend of carbohydrates in combination with the fat-burner L-Carnitine to keep pets energized and feeling full, so they can gradually return to a healthier weight. Enhanced with vitamins, minerals and energy-boosting amino acids for 100% complete and balanced nutrition for life.

Key Benefits
  • Complete and balanced cat food focused on giving your cat optimal nutrition while helping maintain a healthy weight
  • Includes L-Carnitine to help burn fat and maintain healthy weight 
  • Contains prebiotics that work inside the digestive tract to promote healthy digestion and strong defenses
  • Crunchy texture of kibble helps keep teeth clean, tartar-free
  • Ideal for adult cats 1 year and older

Please note this item has recently undergone a packaging change. Customers may receive the old packaging during this transition.

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  • Item Number
  • Weight
    7.0 pounds
  • Brand


  • Food Form

    Dry Food

  • Lifestage


  • Special Diet

    Weight Control

Nutritional Info

Chicken, Ground Whole Grain Corn, Chicken By-Product Meal, Corn Grits, Corn Gluten Meal, Ground Whole Grain Sorghum, Dried Beet Pulp, Natural Flavor, Dried Egg Product, Potassium Chloride, Sodium Bisulfate, Brewers Dried Yeast, Calcium Carbonate, Salt, Choline Chloride, Fish Oil (preserved with mixed Tocopherols), Dicalcium Phosphate, Fructooligosaccharides, Vitamins (Vitamin E Supplement, Niacin, Ascorbic Acid, Vitamin A Acetate, Calcium Pantothenate, Biotin, Thiamine Mononitrate (source of vitamin B1), Pyridoxine Hydrochloride (source of vitamin B6), Vitamin B12 Supplement, Riboflavin Supplement (source of vitamin B2), Inositol, Vitamin D3 Supplement, Folic Acid), Minerals (Zinc Oxide, Manganese Sulfate, Copper Sulfate, Potassium Iodide), Taurine, L-Carnitine, Citric Acid, Mixed Tocopherols, Rosemary Extract.

Caloric Content

3,499 kcal/kg, 315 kcal/cup

Guaranteed Analysis
Crude Protein 28.0% min
Crude Fat 11.0% min
Crude Fat 13.5% max
Crude Fiber 3.0% max
Moisture 10.0% max
Ash 7.0% max
Calcium 0.8% min
Phophorus 0.65% min
Taurine 0.13% min
L-Carnitine 80 mg/kg min
Omega-6 Fatty Acids 1.6% min
Omega-3 Fatty Acids 0.16% min
Feeding Instructions
Weight Weight Maintenance Daily Feeding (cup) Weight Loss Daily Feeding (cup)
4 lbs 1/4 - 1/3 1/4
8 lbs 1/2 - 3/4 1/2
12 lbs 3/4 - 1 2/3
16 lbs 1 - 1 1/2 1
22 lbs 1 1/2 - 2 1 1/3
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 cat 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 her 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 a healthy weight, supports digestive health and gives her energy for all kinds of frisky business.

IAMS Adult Cat Food Products
Healthy Weight

Healthy Weight

Protein is a key ingredient in IAMS cat food recipes. IAMS is made with high-quality protein to help your cat maintain strong, lean muscles. Animal-based proteins like chicken, beef and salmon can help your cat maintain healthy muscle structure and support an ideal weight. And they naturally provide all of the amino acids that cats need to thrive.

Playfulness and Energy

IAMS delivers a customized mix of protein and carbs to keep your cat energized and ready for pouncing and playing. As carnivores, cats need a diet that's high in animal proteins with the ideal ratio of protein to carbohydrates to maintain a healthy energy level. Cats on an IAMS diet are getting essential amino acids, including taurine, plus the amount of carbs they need for hunting feathery toys.

Playfulness and Energy
Healthy Digestion

Healthy Digestion

Getting the right amount and type of fiber is important for your cat'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 promotes a healthy digestive tract. Every IAMS recipe is tailored to your cat's nutritional needs with the proper level and right kind of fiber for healthy digestion.

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
33 Reviews 33 Reviews 4.6 out of 5 Stars

94% Recommend

94% of reviewersrecommend this product

4.6 / 5

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  • For optimal weight management

    By on

    I companion a big rescue feral cat neighbors stated they were going to kill him, they made the mistake of telling me, I trapped him, he was neutered, vaccinated, etc. Since then, he's gained some weight & I wanted to curb his appetite. I just put him on this w/a tsp of canned, he likes it & doesn't appear to be @ his food dish all the time. His name is Mr. Big due to his size, so I'm hoping this @ least stabilizes his weight. He weighs about 15#'s. I'll be back for an update. Thanks Chewy for your great CS!

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  • The gang approves

    By on

    I have 6 indoor rescues all with different tastes. They would love to eat the junk cat kibble if they could, but I prefer healthy cats. I tried the Halo and they did ok with it but they weren’t crazy about it. So, I gave this on a try hoping to appease all of them. As luck would have it, it’s a hit! Whoo Rah! Maybe I should have said Meow? Anyway they all approve and I feel better that it will keep them from packing on the pounds with a nutritionally tasty kibble.

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  • Good, but not filling

    By on

    I found that my cat completely loves this. However, it doesn't seem to fill her as she is ALWAYS yowling for more food, and nothing but more food will shush her. I have to give her some between meals to quiet her, which ends up totaling more than the recommended amount per day. She's young and extremely active but has actually gained a little weight in a few weeks on this. I'd recommend it for the appeal, quality, and price though.

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  • My Cats thought it was just okay

    By on

    Altho I think this is a good product for my cats they think it’s just okay & nothing really special tasting but edible.

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  • He gets up and plays more now!

    By on

    I haven't had the opportunity to weigh our little furball, but since we started on IamsActive Health Adult Optimal Metabolism, I have seen him have much more energy and he wants to play! We started at 19 lbs, hope to be about 17 lbs by the end of fall.

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  • Iams Dog Food

    By on

    My guys love it!!! I like the price!! Fast and prompt service and delivery too.

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  • My kitty loves it

    By on

    My kitty started to rip the bag even before I opened it... :) and she is usually picky. So she likes the food!

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  • My cat was happy when it arrived!

    By on

    When I ordered my cat had enough food for two days and Chewy delivered in two days.

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  • So far so good

    By on Top 25 Contributor

    Too early to know if my 2 fat cats Oreo and Midnight will loose weight or not but i do want to say that they eat this food and give it 4 paws up!

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  • Tummy troubles.

    By on

    I mixed this with the dry food that my cats usually eat. Within a few days, two of my five cats had very loose stools. It might be the corn... I'm not sure.

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