DIAMOND Naturals Small & Medium Breed Puppy Formula Dry Dog Food, 40-lb bag - Chewy.com

Diamond Naturals Small & Medium Breed Puppy Formula Dry Dog Food

By Diamond
Rated 4.4609 out of 5 stars

$56.99Chewy Price
$54.14Autoship Price
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About This Item


  • Made by a family-owned company using quality ingredients from trusted domestic and global sources.
  • This dry dog food features real cage-free chicken as the #1 ingredient and is specially formulated to support the needs of small & medium breed puppies. It even has a smaller kibble size!
  • Nutrient-rich recipe provides the energy to thrive, contains omega fatty acids for skin and coat health and delivers vitamins and minerals from superfoods, including fruits like blueberries and oranges. It also features DHA for proper brain and vision development.
  • 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

25 Customer Questions

How many cups are there in a 6 pound bag of the small breed puppy formula dry dog food?
Answer by ChewyOct 20, 2018
There will be approximately 4 cups per pound of kibble. The 6 pound bag will have close to 24 cups, the 18 pound bag close to 72 cups and the 40 pound bag close to 160 cups.

Is this grain free?
Answer by ChewyNov 13, 2017
This Food contains rice and is not grain free.

Does this have any ingredients from China?
Answer by ChewyAug 22, 2018
Diamond Naturals uses the highest quality ingredients and manufactured in America in state-of-the-art facilities. This formula uses some ingredients that are not USA sourced, like flaxseed and barley, both which originate in Canada and dried chicory root from Belgium. There are ingredients such as folic acid and taurine that can only be sourced out of China.

Are these small kibbles?
Answer by ChewySep 26, 2018
The kibble is approximately the size of a pea.

ReviewsWrite a Review

Rated 4.4609 out of 5 stars
358 Ratings
Would recommend to a friend

358 Customer Reviews

Rated 5 out of 5 stars
By luvechoka1957 on May 4, 2023

Retired Vet Tech

I have been using Diamond Naturals since it came on the market in the 70s! It not only is made in America, but has maintained its quality for all of the years Ive used it, in my opinion & based on my experience. For a couple decades I was breeding & showing collies, using Extreme Athlete when they were preparing for a show season & maintence Chicken & Rice when they werent. Ive raised MANY puppies with the puppy food. I rarely do reviews but figured it was about time being not only a long time user of Diamond as I also am a long time Chewy customer!! When it began, my late husband was truck driving & I found it appealing to have the food delivered. It was nowhere near the company it is now, but rarely have they let me down. To be honest there have been very few incidents that had to do with the delivery drivers, not Chewy themselves. I love that theres someone to answer questions 24/7. I highly recommend both Chewy & Diamond Naturals!💙💜

Rated 3 out of 5 stars
By Jessica on May 24, 2023

I’m Not Sure About This Yet

I adopted a puppy and his previous owner said this is the food he has been eating and loves, but he is very tiny and he doesn’t seem to like this food much. His vet said she was concerned with how small he is and that we may need to switch his food. His litter mates seem to love it and are twice his size, it’s just not what he prefers.

Rated 5 out of 5 stars
By Missy on Apr 26, 2023

A very good brand.

I have used Diamond Natural for my cats for years. When we got a new beagle puppy, I decided to try this puppy food as it’s made with very good ingredients. Unfortunately our beagle is a very picky eater. She has been well vetted and appears to have no underlying conditions but just doesn’t eat well. We have tried several brands and it’s always the same. Since it is her more than the brands we have tried I’m still giving this food a top rating because of past experience with the brand. We are going to donate the remainder of the bag to our local shelter.

Rated 4 out of 5 stars
By Zekee on Apr 23, 2023

Dianmond Naturals Puppy

I have bought Diamond Naturals in the past and always trusted this brand for my dogs. I just acquired a new puppy and put him on this kibble. So far, he is doing well on this food. He is a little Malshi so I was hoping that the kibbles would be small for him. And they are! I would say these are about 1/2 the size of a pea. I use these as training treats too. So far, he seems to like this kibble.

Rated 5 out of 5 stars
By Joelle on May 1, 2023


We have 6 dogs, and we only feed Diamond naturals . 2 of our dogs are extremely picky, and this is about the only food that they will eat. It’s extremely affordable for the nutritional value. We are customers for life and I would recommend this food to anybody .

Rated 3 out of 5 stars
By KJ on May 10, 2023

OK not the best quality

Not the best quality dog food. All of the highlighted ingredients are in small amounts. I used it because breeder was giving it to the puppies. Stool is loose and low nutritional value.

Rated 1 out of 5 stars
By TheClarks on Feb 26, 2023

made our puppy sick

We have our 2 adult dogs on diamond naturals they do fantastic on it so when we got our new addition and they were on puppy chow I slowly transitioned her. It took me double the about of time to transition her just in case and she ended up very sick from it. Once she was just on this food. Made her extremely gassy and thirsty. She also had multiple poonamis like a tsunami but with poop as soon as I switched her back to puppy chow we have had ZERO issues. And I switched her back quick I literally stopped her on this food and put her on puppy chow. Would not recommend this food

Rated 2 out of 5 stars
By sarag on Feb 24, 2023

caused my dog to go to the hospital

Worst dog food ever. I had bought a bag in July and was giving it to the puppies and my older dogs. I didn’t realize it at the time but it was the reason my dogs were all vomiting blue stuff. Every morning. I stopped giving it to them. Again I tried it the other day cause I ran out of their fav food and the blue vomit came back. One aspirated on her vomit and it was a couple hundred dollar to the vet. Please be advised about this food.

Rated 5 out of 5 stars
By Maxx on Mar 25, 2023

Great Food

Switched my dog to this diamond brand puppy food and he has been loving it. Has been a little gassy but nothing different from before. Doesn't really have problems on this food and tends to eat it all and want more. Awesome brand and great ingredients.

Rated 4 out of 5 stars
By Melanie on May 4, 2023

Great for my puppy

Recommended for our new puppy by our groomer who also is a registered AKC breeder- he loves this and it’s the right size for our small Cavapoo