Diamond Performance Formula Adult Dry Dog Food

By Diamond
Rated 4.0649 out of 5 stars


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$93.98Chewy Price
$89.28Autoship Price
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Top IngredientsLamb Meal, Ground White Rice, Cracked Pearled Barley...Chicken, Chicken Meal, Whole Grain Brown Rice...Beef, Pork, Beef Meal...Lamb Meal, Whole Grain Brown Rice, Cracked Pearled Barley...Lamb, Rice Flour, Whole Grain Corn...
Health FeatureDigestive Health, Immune Support, Skin & Coat HealthDigestive Health, Immune Support, Skin & Coat HealthDigestive Health, Immune Support, Skin & Coat HealthDental & Breath Care, Digestive Health, Heart Care...
Special DietNo Corn No Wheat No Soy, With GrainNo Corn No Wheat No Soy, With GrainHigh-Protein, With GrainNo Corn No Wheat No Soy, With GrainHigh-Protein, Natural, With Grain
Breed SizeSmall Breeds, Medium Breeds, Large Breeds, All BreedsLarge Breeds, Giant BreedsSmall Breeds, Medium Breeds, Large Breeds, All BreedsLarge Breeds, Giant BreedsSmall Breeds, Medium Breeds, Large Breeds, All Breeds
Food FlavorMeat, LambPoultry, ChickenMeat, Beef, PorkMeat, LambMeat, Lamb
Food FormDry FoodDry FoodDry FoodDry FoodDry Food

About This Item


  • Chelated minerals help ensure maximum absorption of vital nutrients; powerful antioxidants including selenium and vitamin E help support his immune system and overall health.
  • Formulated with 30% protein, 20% fat and other vital nutrients to support an ideal body condition for your active pooch.
  • Omega-3 and omega-6 fatty acids provide support for healthy skin, a shiny coat and overall well-being while dried beet pulp helps to aid digestion.
  • 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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Nutritional Information

Feeding Instructions

Play Video: Learn More About Diamond From Our Team of Experts
Learn More About Diamond From Our Team of Experts

Questions & Answers

16 Customer Questions

Does this product contain soy?
Answer by ChewySep 06, 2018
All of the Diamond food lines doesn't contain soy.

is this good for helping a dog gain weight and keeping it
Answer by ChewyJun 19, 2019
While this wasn't specifically formulated for weight gain, the feeding amount should be adjusted to your pet's specific needs. If unsure, consult your veterinarian.

Does this have glucosamine to support hip & joints ?
Answer by ChewySep 27, 2022
They do not add glucosamine or chondroitin to the Diamond Performance food. Since It is an all life stage formulation, regulations state you can not add these things to an all life stage formulation.

How many cups are in a 40 pound bag?
Answer by ChewyJan 25, 2019
There are approximately 80 cups in the 20 pound bag and 160 cups in the 40 pound bag.

ReviewsWrite a Review

Rated 4.0649 out of 5 stars
77 Ratings
Would recommend to a friend

75 Customer Reviews

Rated 3 out of 5 stars
By Will on Oct 21, 2023


Diamond performance is a middle of the road door. Not as good a pro plan sport or via toe high pro plus but as a breeder with many dogs the price of dog food has drove me to feed a less expensive sub par food. Sad but true. Inflation is insane right now.

Rated 4 out of 5 stars
By Lexi on May 15, 2023

Diamond performance

My Lexie dog did not love it like she has other diamond products!

Rated 2 out of 5 stars
By 2southernGermans on Dec 6, 2022

Thought it would be good

I was looking for a different high protein/fat dog food for my two gsps since I couldn't afford purina pro plan anymore. The Ingredients looked grate on this food, unfortunately my dogs didn't really like it and it was a struggle to finish the bag. It made their coat very greasy and flaky. The bag also came cut in half in the box when it arrived.

Rated 3 out of 5 stars
By Duff on Feb 16, 2023

Loyall Dog Food

I feed my dogs Loyall Professional dry dog food. In NC I can't get it. Chewy doesn't carry it. Why? I'd buy it from Chewy if they did.

Rated 1 out of 5 stars
By Dani on Nov 20, 2022

BUYERS BEWARE!!!! Screws in food

I ordered this food for my Great Dane puppy and have found 4 black screws in the food. Make sure you are checking your food before you give it to your dog.

Rated 1 out of 5 stars
By Tammy on Feb 18, 2023

diamond dog food

Gave all my dogs explosive diarrhea and horrendous gas!

Rated 5 out of 5 stars
By Sandy on Dec 15, 2022

Diamond dog food

The usual diamond dog food I order was out of stock so I bought this kind and my dogs love it

Rated 5 out of 5 stars
By Abbe on Jun 24, 2022

Great food

My dogs love this food. When other dogs come to visit if any food is left in the bowl it is quickly eaten by their visiting friends

Rated 5 out of 5 stars
By ShowMama on Feb 20, 2022

Show Boxers

I used to show and breed champion Boxers for 27 yrs and switched from Pro Plan to Diamond Performance when it very first came out. My dogs were always in top quality condition, hardly shed, and had super shiny and soft coats (so they required very little grooming before going in the show ring). They always maintained perfect show weight and stamina. Their stool was dark and smaller piles, because their bodies used all the nutrients with very little junk ingredients to waste (the stool tells a lot about the quality of dog food). The puppy formula was also excellent for my pups. Many show people also switched to Diamond for same results. I'm retired now and have a Lab, Boxer and a Shih Tzu, but I still feed Diamond after all these years (except my Shih Tzu needs grain-free food, which I wish Diamond offered).

Rated 5 out of 5 stars
By Marianne on May 7, 2022

Diamond Natural Dog Food

Used this product for many years .Never had problem.Dogs love it ,never had a problem with allergies.