Search  for anything...

Diamond Naturals Dry Food for Puppy, Large Breed Lamb and Rice Formula, 40 Pound Bag

  • Based on 10,988 reviews
Condition: New
Checking for the best price...

Buy Now, Pay Later


As low as $9.17 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

Non-returnable due to Food safety reasons

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, Sep 8
Order within 14 hours and 49 minutes
Available payment plans shown during checkout

Flavor Name: Puppy-Lamb


Size: 40 Pound (Pack of 1)


Features

  • Contains Das for brain and eye development
  • Antioxidant Formulation
  • Balanced omega fatty acids for skin and coat

Description

Proper levels of protein, fat, calories and minerals will help your large breed puppy grow and thrive. Calcium and phosphorus provide ideal bone and joint development, and the addition of L-carnitine helps convert fat to energy and develop lean body condition and strong bones. Diamond Naturals Large Breed Lamb & Rice Puppy Formula Dry Dog Food also contains DHA for optimal brain and eye development.

Brand: DIAMOND NATURALS


Flavor: Puppy-Lamb


Age Range (Description): Puppy


Item Form: Pellet


Specific Uses For Product: Immune Support, Brain Health, Skin and Coat Health, Eye Care


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 27 x 6 x 16 inches; 40 Pounds


Item model number ‏ : ‎ 117-ST28


Department ‏ : ‎ dog-dry-food


Date First Available ‏ : ‎ August 19, 2004


Manufacturer ‏ : ‎ Diamond Pet Foods, Inc.


Country of Origin ‏ : ‎ USA


Best Sellers Rank: #1,616 in Pet Supplies (See Top 100 in Pet Supplies) #125 in Dry Dog Food


#125 in Dry Dog Food:


Item Weight: 40 pounds


Department: dog-dry-food


Manufacturer: Diamond Pet Foods, Inc.


Country of Origin: USA


Item model number: 117-ST28


Date First Available: August 19, 2004


Item Package Dimensions L x W x H: 25.98 x 17.6 x 5.67 inches


Item Dimensions LxWxH: 27 x 6 x 16 inches


Item Weight: 40 Pounds


Brand Name: DIAMOND NATURALS


Target Audience Keyword: dogs, ( reptiles | amphibians )


Directions: For pregnant or nursing adult dogs, we recommend free-choice feeding. Remember to keep plenty of fresh water available to your pet at all times.


Model Name: 8379


Size: 40 Pound (Pack of 1)


Age Range Description: Puppy


Number of Items: 1


Style: Large Breed Lamb & Rice


Breed Recommendation: Large Breeds


Included Components: Pet Food


Specific Uses for Product: Immune Support, Brain Health, Skin and Coat Health, Eye Care


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Sep 8

This item is non-returnable:

Non-returnable due to Food safety reasons

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Good puppy food
Flavor Name: Puppy-Lamb Size: 40 Pound (Pack of 1)
Our puppy loves this food and we love the price! Win win ♥♥
Reviewed in the United States on July 10, 2025 by Nestor J Varela

  • Too pricy!
Flavor Name: Puppy-Lamb Size: 40 Pound (Pack of 1)
Great food but very expensive at Amazon! Look at your local farmstore and save $10.00 per 10 pound bag today! There's no reason to pay that much.
Reviewed in the United States on June 17, 2025 by Linn

  • Awesome food for itching
Flavor Name: Lamb Size: 40 Pound (Pack of 1)
Yeah, very good dog food my dogs love it, which is good and I’m waiting for the itching to stop because they’re allergic to chicken which they were eating chicken a year and a half year and a half. They’ve been scratching the doctor gave him all kinds of meds, but never told me to change his food that they might be allergic to chicken good go veterinarian ... show more
Reviewed in the United States on June 19, 2025 by ARBONNE

  • Great, natural, affordable food.
Flavor Name: Puppy-Lamb Size: 40 Pound (Pack of 1)
Switched over to Diamond originally for our German Shepherd puppy. We had him on Blue Buffalo but the food was too rich and he always had runny #2's. He also had a lot of dandruff which we think may have been caused by a chicken allergy, which is very common. Since he did so well on it we decided to switch our cat over because it was very affordable. Our Bengal does not eat a lot so we keep the food in a sealed storage container. It keeps the food very fresh and for much longer, so if you have picky pets, ask yourself if you would eat stale month old food that has been sitting out lol. There are always people complaining about their dogs or cats having diarrhea. I really feel like people need to be more educated on how to switch to a new food as well as the time involved. 1) Every animal just like every person is different and some animals could eat a different brand and flavor every day and never have an upset stomach. Some do better with a changing, varied diet while others are better off with the same food and no interruptions. Age, breed, temperament, environment, and pretty much everything else you could think of all play a part. 2) Switching to a new food varies but it is usually suggested that the slower you acclimate them the better. Assuming I did not wait until the last minute and have planned for the change I will start by replacing 10% of the old food with the new food (rough estimate, I am not counting kibble) and then every day I will replace another 10%. Total acclimation of about 10 days, it's really not that hard so stop being lazy. If I notice my pet is not adjusting well or has an upset stomach I will generally go back to the previous day's mixture, when they were feeling well. 3) Even if you slowly acclimate them to a new food it can take a couple weeks for their stomachs to get back to normal. This is especially true with younger animals. I see people giving good foods 1 star reviews because their 10 week old puppy had diarrhea for a week...get real. Before you get the pitchforks out I am not saying that everyone should just ignore their pet that's having some stomach problems for four weeks. I am just saying I think there are a lot of nut-job pet owner's out there that claim a food is poison because their dog didn't do well on it. It takes time to adjust even if you do it right. In some cases it just doesn't work out, like my German Shepherd on Blue Buffalo. They have great quality food and I would still recommend them to people but for the couple puppies I have had on it, it seemed to be a little too rich/pure. They did better with the natural foods that had a little more filler like Diamond. ... show more
Reviewed in the United States on August 14, 2015 by V

  • Nice price for good quality
Flavor Name: Lamb Size: 40 Pound (Pack of 1)
My dogs like the diamond salmon flavor better.
Reviewed in the United States on May 16, 2025 by Audrey Fletcher

  • Great
Flavor Name: Puppy-Lamb Size: 40 Pound (Pack of 1)
Our puppy loved it. Its not our usual brand but it is now.
Reviewed in the United States on July 14, 2025 by Ember wolfe

  • Healthy dog food
Flavor Name: Adult - Chicken Size: 40 Pound (Pack of 1)
I have two girls from the same litter, AmStaff/French Mastiff's. They have been on Diamond Naturals Large Breed for 4 years, so I can say with some authority that this is a great food. I have worked in pet stores in the past and found that it was common for AmStaff breeds to have allergies to certain ingredients, usually the fillers in cheaper foods. This is not to say that every one of them has these allergies, it was just a common theme I came across. Diamond Naturals doesn'thave those fillers. Your dog can eat the correct amount of food and be satisfied without constantly begging for more. My girls have healthy coats, teeth and no allergies to this food. Also, if you have a dog that weighs over 50lbs, I would always suggest to get the Large Breed food. These have more Glucosamine and Chondroitin and will help those large breed dogs have a longer happier life. Personally, I like the price point on Diamond Naturals compared to similar foods. It's a healthy food without breaking the bank for two large girls, 86lbs and 73lbs. Hope this helps ... show more
Reviewed in the United States on March 24, 2019 by JM

  • Great job!!
Flavor Name: Adult - Chicken Size: 40 Pound (Pack of 1)
Very efficient and friendly.
Reviewed in the United States on May 12, 2025 by Gerald D

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...