Diamond Naturals Small & Medium Breed Puppy Formula Dry Dog Food, 40-lb bag

Skip image gallery
Slide 1 of 8

At a Glance

  • No Corn No Wheat No Soy
  • High-Protein
  • Hip & Joint Support
  • Skin & Coat Health
  • Immune Support
  • Made in USA
  • Puppy
  • Extra Small Breeds
  • Small Breeds
  • Medium Breeds

$37.04 First Time Autoship Price
this order
Save 35% (up to $20) today when you set up Autoship. 
$54.14 Autoship Price
(-5%) future orders
  • Keep saving 5% on every order
  • Get deliveries on your schedule
  • Skip, change, or cancel anytime
$56.99 Chewy Price
($1.43 /lb)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card + Free Shipping with code: WELCOME
In Stock
FREE 1-3 day delivery
Free 365-day returns

No interest if paid in full in 6 months on PayPal purchases of $149+. .

About This Item

Details

  • 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.

Ingredient Information

Feeding Instructions

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.

Shop Diamond

Frequently bought together

Questions & Answers

24 Customer Questions

How many cups are there in a 6 pound bag of the small breed puppy formula dry dog food?

Answer by Chewy • Oct 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.

Does this have any ingredients from China?

Answer by Chewy • Aug 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 Chewy • Sep 26, 2018
The kibble is approximately the size of a pea.

My puppy is not eating a lot - she is a 14 week old Shihpoo - Can I mix warm water in her kibble in order to get her to eat more & make it a little softer.

Answer by Chewy • May 19, 2019
If your puppy is not eating his dry food, you may want to mix a small amount of wet food into your puppy's regular dry food to make it more appealing. You can also try moistening the dry food using three parts kibble and one part warm water.
Reviews
Write a Review
4.6
Rated 4.6 out of 5 stars
1564 Ratings
Terms & Conditions

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Digestibility

81% Positive

Ingredients

86% Positive

Nutritional Value

86% Positive

Palatability

86% Positive

697 Customer Reviews

Rated 5 out of 5 stars
By Tim on Jan 23, 2026

My beagle got big.

It came time to switch from puppy food to adult, and I must say Sportsmix has my puppy already bigger than both his parents, so I was worried about the next step

It came time to switch from puppy food to adult, and I must say Sportsmix has my puppy already bigger than both his parents, so I was worried about the next step in nutrition and about changing the food. All the pups love the Diamond brand, I worried for nothing. Even the other owners adult dogs that were getting Purina before are loving the new stuff and the whole beagle family is looking shiny and stronger than ever before. Big fan, me!

Rated 1 out of 5 stars
By Gwendolyn on Jan 25, 2026

Caused diarrhea and itchy skin rash

Transitioned our puppy from another brand’s chicken and rice puppy kibble to this one and he broke out in itchy red spots all over his belly and had diarrhea within

Transitioned our puppy from another brand’s chicken and rice puppy kibble to this one and he broke out in itchy red spots all over his belly and had diarrhea within a day. Switched back and both issues went away. Some other ingredient besides the chicken and rice inflamed his skin and stomach.

Rated 5 out of 5 stars
By Laurie on Jan 12, 2026

Small bites!

This food was recommended to me by a breeder. I was using a much more expensive food so I decided to try it. My dogs love it more than the expensive food. Great

This food was recommended to me by a breeder. I was using a much more expensive food so I decided to try it. My dogs love it more than the expensive food. Great ingredients, USA made and small enough for my 3 chihuahuas to eat it with no problems. Thanks to my breeder!

Rated 5 out of 5 stars
By Susan on Jan 15, 2026

Pleased with this Kibble!

kibble is very small and my dog loves it. I got the 6 lb bag because she is small and only 6 months old. I will most likely try the adult kibble in this brand

kibble is very small and my dog loves it. I got the 6 lb bag because she is small and only 6 months old. I will most likely try the adult kibble in this brand when she is old enough. It has good ingredients and is reasonably priced.

Rated 5 out of 5 stars
By Colleen on Jan 25, 2026

Received quickly

We were using this.brand switched to another very similar but you have to feed more food because there is less nutrients and our dogs loved that we switched b

We were using this.brand switched to another very similar but you have to feed more food because there is less nutrients and our dogs loved that we switched back.

Rated 3 out of 5 stars
By Sara on Oct 19, 2025

Healthy, but...

Mishka started out on this food as it was breeder recommended. But after getting through about 85% of the first bag, she stopped eating it. Of course, this was right

Mishka started out on this food as it was breeder recommended. But after getting through about 85% of the first bag, she stopped eating it. Of course, this was right when Chewy delivered the next bag. I contacted customer service and they thankfully understood and refunded me. I ended up taking the other bag to my local humane society who was excited to have it. Disappointing that she decided she didn't like the flavor. (She decided salmon was her flavor of choice.) It's a hood food, with great reputation and health benefits. Just, I ended up with a picky puppy.

Rated 1 out of 5 stars
By james on Nov 15, 2025

Last two bags made them ill.

It made them sick, explosive diarrhea and very lethargic. I took them off of it and went to a few days of boiled hamburger and rice it fixed the problem. I opened

It made them sick, explosive diarrhea and very lethargic. I took them off of it and went to a few days of boiled hamburger and rice it fixed the problem. I opened a new bag fed it to them once and now they are sick again. I do not recommend this product. The pups mom ate the food that the pups left and now she is sick to.

Rated 5 out of 5 stars
By Anna on Oct 10, 2025

Absolutely PERFECT for tiny breed puppies!!!!

We were in search for a tiny in size puppy food for our miniature dachshund Puppies that also is a great Quality food for them. Our litter of puppies have done amazing

We were in search for a tiny in size puppy food for our miniature dachshund Puppies that also is a great Quality food for them. Our litter of puppies have done amazing on this food. We highly highly highly recommend this puppy food for anyone who has tiny breed puppies. Ps thank you Diamond Naturals for meeting our needs for our babies!!! Thank you Chewy for meeting our every need for our babies with everything you offer!!!

Rated 5 out of 5 stars
By Tina on Nov 12, 2025
Top 1000 Contibutor

Best puppy food

The Diamond Naturals is by far the best food for my puppy that I ever bought. His eyes are bright, coat is smooth, soft and shiny and he has tons of energy. I will

The Diamond Naturals is by far the best food for my puppy that I ever bought. His eyes are bright, coat is smooth, soft and shiny and he has tons of energy. I will keep him on the Diamond Naturals when he ages out of the puppy food

Rated 1 out of 5 stars
By Pamela on Oct 11, 2025

Gave our fur babies diarrhea

I am not sure if it was just a bad reaction, however, this food gave my fur babies terrible stomach and digestive issues. Dr. Suggested we change their food, within

I am not sure if it was just a bad reaction, however, this food gave my fur babies terrible stomach and digestive issues. Dr. Suggested we change their food, within 3 days of not feeding this food to them, their diarrhea and digestive issues cleared right up. Again, it looked like a great product, could just be a bad reaction to my puppy.