Diamond Naturals Extreme Athlete Formula Dry Dog Food

By Diamond
Rated 4.232 out of 5 stars


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$54.99Chewy Price
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Top IngredientsChicken, Chicken Meal, Whole Grain Brown Rice...Chicken, Chicken Meal, Whole Grain Brown Rice...Lamb Meal, Whole Grain Brown Rice, Cracked Pearled Barley...Lamb Meal, Ground White Rice, Cracked Pearled Barley...Beef Meal, Grain Sorghum, Ground White Rice...
Health FeatureDigestive Health, Immune Support, Skin & Coat HealthDigestive Health, Immune Support, Skin & Coat HealthDigestive Health, Immune Support, Skin & Coat HealthDigestive Health, Immune Support, Skin & Coat HealthDigestive Health, Immune Support, Skin & Coat Health
Special DietNo Corn No Wheat No Soy, With GrainNo Corn No Wheat No Soy, With GrainNo Corn No Wheat No Soy, With GrainNo Corn No Wheat No Soy, With GrainNo Corn No Wheat No Soy, With Grain
Breed SizeSmall Breeds, Medium Breeds, Large Breeds, All BreedsLarge Breeds, Giant BreedsLarge Breeds, Giant BreedsSmall Breeds, Medium Breeds, Large Breeds, All BreedsSmall Breeds, Medium Breeds, Large Breeds, All Breeds
Food FlavorPoultry, ChickenPoultry, ChickenMeat, LambMeat, LambMeat, Beef
Food FormDry FoodDry FoodDry FoodDry FoodDry Food

About This Item


  • Made in the USA by a family-owned company using quality ingredients from trusted domestic and global sources.
  • This high-protein (32%) recipe contains real chicken and is specially formulated to support the needs of highly active and sporting dogs.
  • This nutrient-rich kibble provides the energy to thrive and contains omega fatty acids for skin and coat health. It also delivers vitamins and minerals from superfoods, including fruits like blueberries and oranges.
  • Each serving includes species-specific K9 strain proprietary probiotics, plus antioxidants and prebiotics to help support healthy digestion, immune system health and overall wellness.
  • Made without corn, wheat, artificial flavors or colors.

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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

About Diamond Pet Food

Headquartered in Missouri, family-owned Diamond Pet Food believes that every pet deserves the best food possible, and they've been delivering on that promise since 1970. They use state-of-the-art facilities across the USA to create quality cat and dog food made to the highest nutritional standards. Every formula balances protein, fat and essential nutrients to keep your pets active and healthy and performing their best.

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Questions & Answers

33 Customer Questions

What percent of the protein comes from an animal source vs. a plant source.
Answer by ChewyMar 19, 2019
In this dog food, 91% protein comes from chicken and egg while the remaining 9% is from plant based protein.

Why no dha in this dog food?
Answer by ChewyFeb 04, 2018
The DHA is within the Omega 3 fatty acids. The three main omega-3 fatty acids are alpha-linolenic acid (ALA), eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA).

What is the carbohydrate content of this food, as fed?
Answer by ChewyJul 14, 2022
This formula has a carbohydrate content of 20.6%, as fed and 22.5%, dry matter.

Does this food contain any peas or legumes?
Answer by ChewyApr 05, 2019
This recipe doesn't contain any peas or legumes. For a complete list of ingredients, click the “Nutritional Info” tab, next to the “Description” tab, just under the product photos.

ReviewsWrite a Review

Rated 4.232 out of 5 stars
250 Ratings
Would recommend to a friend

246 Customer Reviews

Rated 1 out of 5 stars
By Candice on Nov 12, 2023

not 40lbs?

I was buying this brand for months. I have three dogs and in the beginning one bag would last for the month. The last three months or so the bags weren’t lasting longer than 3 weeks, which resulted in me having to go to the store buy a different brand. Each month it seemed like the food wasn’t lasting even three weeks, because I would buy another bag of food, finish out the other food, starting giving them the new bag and it still wouldn’t make it the whole month. So I switched brands completely bought another 40 pound bag, which I started the day I got the bag, in a few days it will be a month, and my dogs still have at least another week of food left over. *dogs are fed a specific amount so it doesn’t fluctuate *food is enclosed in a container so they can’t access it at all *kibble is the same size as new brand The other thing I noticed is as soon as I stopped feeding this to my dogs the horrendous farts stopped happening too.

Rated 5 out of 5 stars
By Chantelle on Oct 14, 2023

My subscription

Unfortunately, the normal dog food that I order every 6 to 8 weeks wasn’t available. I called customer service to see what I could do in order to get my dog some food. The lady on the other end of the line was so helpful in getting me what I needed for my dog. it was nice because she listened to every need of Belle. She definitely made the experience extremely wonderful.

Rated 3 out of 5 stars
By Ruben on Oct 5, 2023

More expensive but my dog doesn't like it...

They were out of the salmon recipe so I opted for the higher priced/rating option.. Extreme Althlete formula seemed to fit since I have a boxer. Unfortunately, she will not eat this unless it has loads of other stuff mixed in.. Funny, cause she loves the salmon recipe :9

Rated 2 out of 5 stars
By Sydney on Nov 15, 2023

Great Food, Terrible Delivery

My dogs love the food, but I did order two bags and one bag arrived ripped open and I threw it away!

Rated 1 out of 5 stars
By Patty on Oct 5, 2023

Die a re a

It gave my dogs terrible diarrhea. The only reason I bought it was because the chewy consultant recommended it. They were out of my normal kind.

Rated 2 out of 5 stars
By Jackie on Nov 24, 2023

Loose stools

I’ve been feeding this food since the Victor recall and haven’t had good stools yet.

Rated 3 out of 5 stars
By Louis on Nov 25, 2023

Port in a storm

Chosen for ratings on petfoodsdviser. Concerned over high percentage of protein

Rated 5 out of 5 stars
By Jeanna on Nov 11, 2023

Great quality food that my dog loves.

Rated 5 out of 5 stars
By Milkshake on Feb 25, 2023

Great for active and growing German shepherd.

I like this food. I hope my dog likes it too but she cannot talk, she happily eats it however. She only eats until she is full due to the high protein content. Most dog food protein content is <30% which I find unacceptable. I like that rice is one of the main ingredients. German shepherds are known for sensitive tummies and the rice has helped her keep firm stools. Took a while to find the right dog food but I highly recommend this if you have a 50 lbs or larger dog.

Rated 3 out of 5 stars
By CatMomof3 on Mar 7, 2023

Good but Gassy

Initially my almost one year old bernedoodle loved this. About two weeks in I noticed it's been giving him lots of gas, he's very thirsty all the time, and even regurgitating his food sometimes. I'm trying to use up the bag but he barely touches it-going to have to find something else. He's not usually picky so I'm not sure what the problem is with this. It seemed like a good choice, dairy free, pea free, etc...have to keep looking though.