Diamond Maintenance Formula Adult Dry Cat Food

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    $32.99 FREE 1-2 Day Shipping over $49

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40-lb bag
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Give your feline friend the precious gift of premium nutrition with Diamond Maintenance Formula Adult Dry Food. Formulated from the highest quality ingredients, this food is made to make a difference with carefully determined levels of protein, fat and other vital nutrients to support your moderately active pal’s ideal body condition. Essential minerals are chelated with amino acids to optimize their absorption and ensure maximum benefit. It’s also fortified with antioxidants and fiber for digestive and immune system support to help make sure your best friend gets all the nutrients she needs to stay healthy and happy.

Key Benefits
  • Formulated with 22% protein, 12% fat and other vital nutrients to support an ideal body condition for your moderately active feline.
  • Chelated minerals help ensure maximum absorption of vital nutrients; powerful antioxidants including selenium and vitamin E help support his immune system and overall health.
  • Omega-3 and omega-6 fatty acids provide support for healthy skin, a shiny coat and overall well-being, while taurine helps to support your pal’s overall health.
  • Made with ingredients from trusted and sustainable sources for complete and balanced nutrition with essential vitamins and nutrients.
  • Made in the USA by a family owned and run company with the most scientifically advanced food safety protocols because your pal deserves nothing but the best!

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  • Item Number
  • Weight
    40.0 pounds
  • Brand


  • Food Form

    Dry Food

  • Lifestage


  • Made in

    United States

Nutritional Info

Chicken By-Product Meal, Whole Grain Ground Corn, Wheat Flour, Chicken Fat (Preserved With Mixed Tocopherols), Corn Gluten Meal, Ground White Rice, Dried Beet Pulp, Natural Chicken Flavor, Flaxseed, Fish Meal, Sodium Bisulfate, Potassium Chloride, Choline Chloride, Dl-Methionine, Taurine, Dried Lactobacillus Plantarum Fermentation Product, Dried Bacillus Subtilis Fermentation Product, Dried Lactobacillus Acidophilus Fermentation Product, Dried Enterococcus Faecium Fermentation Product, Dried Bifidobacterium Animalis Fermentation Product, Zinc Proteinate, Vitamin E Supplement, Niacin, Manganese Proteinate, Copper Proteinate, Zinc Sulfate, Manganese Sulfate, Copper Sulfate, Thiamine Mononitrate, Vitamin A Supplement, Biotin, Potassium Iodide, Calcium Pantothenate, Riboflavin, Pyridoxine Hydrochloride (Vitamin B6), Vitamin B12 Supplement, Manganous Oxide, Sodium Selenite, Vitamin D Supplement, Folic Acid.

Caloric Content

3,742 kcal/kg, 350 kcal/cup

Guaranteed Analysis
Crude Protein 30.0% min
Crude Fat 15.0% min
Crude Fiber 3.0% max
Moisture 10.0% max
Calcium 0.8% min
Phosphorus 0.65% min
Selenium 0.3 mg/kg min
Vitamin A 15,000 IU/kg min
Vitamin E 100 IU/kg min
Taurine 0.1% min
Omega-6 Fatty Acids 2.4% min
Omega-3 Fatty Acids 0.4% min

Total Microorganisms* Not Less Than 80,000,000 CFU/lb

Feeding Instructions
Weight Recommended Daily Feeding (cups)
3-5 lbs 1/3 - 1/2
5-10 lbs 1/2 - 2/3
10-15 lbs 2/3 - 1
15-20 lbs 1 - 1 1/4
Transition Instructions

When transitioning your pet to a new food, we recommend a gradual introduction of the new formula over a 7 day period. For pets with sensitivities, extend the transition period to 10 to 14 days. Start by adding a small amount of your pet’s new food to his or her current food. Gradually, increase the new food amount and decrease the current food amount at each feeding until you are feeding only the new food.

Customer Reviews
92 Reviews 92 Reviews 4.6 out of 5 Stars

93% Recommend

93% of reviewersrecommend this product

4.6 / 5

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  • Great food, even better price

    By on

    If your cat doesn't need a special diet, this food is a great value. The nutritional value is good, doesn't have a ton of fillers, and my cats love it. I don't see a huge weight gain issue on this food, either (I think that's coupled with scheduled feedings and puzzle feeding). And all this food for the price is exceptional. I love that I can get 40lbs delivered to my doorstep -- this food is great all around!

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  • Good brand of food but not a hit with my cats!

    By on

    I bought this food for my indoor and outdoor cats in hopes of just buying 1 huge bag of cat food for my indoor cats and ferals outside. Not a hit with indoor or outdoor cats at all! So I guess I will be buying two different fish flavored bags instead of the chicken flavored from Diamond. So bummed because this would have saved me time from going to two different places! I will be donating this bag to our cat shelter nearby.

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  • all our cats approve

    By on

    I have fed Diamond food to all my pets for over 20 yrs. My dogs thrived on it, and my barn cats love it. We rescued a feral cat, had him neutered, and his coat was ruff and dull. After 2 months on Diamond his coat shines, he is now at normal weight. Good economic food.

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  • Steves kitties

    By on

    I bought this diamond dry cat food replace to Whiskas dry cat food which I can no longer get they ate it for 3 days then they quit for some reason but they went back and started eating it again came home from work and all the food bowls where empty I do recommend it cuz I feed it to my 11 indoor cats and my for feral cats outside just 40 lb bag is a good bargain for me I will stick with it I do recommend it for households with multiple cats

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  • Feral Cats Love It!

    By on Top 1000 Contributor

    I'm feeding a small feral cat colony that gather in my backyard and my neighbors yard with whom all come by hungry throughout the day. It's been difficult to find 1 brand of food that all of them will eat. This has been the cat food that none have refused. It will be the one that I will stick with.

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  • Great food for colonies

    By on

    Over the years thirty cats have found their way to me. I used to rescue exotic animals thirty years ago most have since gone over the rainbow bridge but I still have the cages so I now house cats that were disregarded. I luckily found Diamond and all the cats have been thriving for over three years on this food. I would have given them five stars but that I save for Diamond Indoor cat food. Thanks Chewy and Diamond.

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  • Diamond cat food

    By on

    I have a older cat and everything I have given her before has made her sick I’m so impressed with this food no more getting sick after eating and she looks better and has more energy I recommend this to anyone had to reorder already as she almost finished the small bag in two weeks

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  • Excellent Choice for Colony Cats

    By on

    Nope, this isn't top of the line, grain free kibble. This is,however, a very good bulk food for colony feeding. The protein content is high enough to support outdoor cats and contains sufficient nutrients for health maintenance. As a budget priced bulk food, this is probably the best choice for maintaining a healthy colony.

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  • Great Food

    By on

    This is great. I am starting my youngest cat on this food. I have used it on past cats with great results.

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  • 14 feral cats approve

    By on

    Feeding a colony of 14, started mixing this with normal dry and had very little issues. They all ate it! Helps me keep costs down so more animals can be fostered!

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