Petco Text Logo
Petco Pet Logo

Diamond Naturals Large Breed Puppy Lamb & Rice, 40 lb

Diamond Naturals Large Breed Puppy Lamb & Rice, 40 lb


Weight
6 LBS
20 LBS
40 LBS
Free Shipping $39+
Icon carat down

Description

Specifically formulated to meet the nutritional needs of your large breed puppy, this formula contains DHA for proper brain and vision development. Carefully determined protein and mineral content, along with omega fatty acids and antioxidants, help support your large breed puppy's growth and development. L-Carnitine helps to convert protein and fat into energy for a healthy body condition.

  • - Diamond Naturals Large Breed Puppy Lamb and Rice dry dog food; REAL PASTURE-RAISED LAMB is the #1 ingredient; specially formulated with carefully determined protein and mineral content to support the needs of LARGE BREED PUPPIES
  • - Appropriate nutrient levels to fuel larger growing bodies; vitamins and minerals from SUPERFOOD fruits like blueberries and oranges; omega fatty acids for healthy SKIN and COAT
  • - Each serving includes species-specific K9 Strain PROPRIETARY PROBIOTICS - plus antioxidants and prebiotics - to help support healthy digestion, IMMUNE system and overall health and wellness
  • - FAMILY-OWNED and MADE in the USA using quality ingredients from trusted domestic and global sources
  • - Formulated without corn wheat, artificial flavors or colors

Please note that the product information displayed is provided by manufacturers, suppliers and other third parties and is not independently verified by Petco.

Specifications

SKU3173716
LifestagePuppy
Primary FlavorLamb
Primary BrandDiamond
Days to ShipShips Next Business Day
Weight40 LBS
Grain FreeNo
Personalized Item flagNo
Primary FlavorLamb
LifestagePuppy
Breed SizesLarge Breed

Lamb, lamb meal, whole grain brown rice, cracked pearled barley, grain sorghum, dried yeast, egg product, chicken fat (preserved with mixed tocopherols), white rice, fish meal, dried tomato pomace, natural flavor, flaxseed, salmon oil (source of DHA), salt, DL-Methionine, potassium chloride, choline chloride, taurine, dried chicory root, L-Carnitine, kale, chia seed, pumpkin, blueberries, oranges, quinoa, dried kelp, coconut, spinach, carrots, papaya, yucca schidigera extract, dried Lactobacillus plantarum fermentation product, dried Bacillus subtilis fermentation product, dried Lactobacillus acidophilus fermentation product, dried Enterococcus faecium fermentation product, dried Bifidobacterium animalis fermentation product, vitamin E supplement, beta carotene, iron proteinate, zinc proteinate, copper proteinate, ferrous sulfate, zinc sulfate, manganese sulfate, copper sulfate, potassium iodide, thiamine mononitrate, manganese proteinate. Vitamin A supplement, biotin, niacin, calcium pantothenate, sodium selenite, pyridoxine hydrochloride, vitamin B12 supplement, riboflavin, vitamin D3 supplement, folic acid. Contains a source of live (viable), naturally occurring microorganisms. The facility in which this food is made also makes foods that include other ingredients not listed. Trace amounts of these other ingredients and other substances may be present.

Description

Specifically formulated to meet the nutritional needs of your large breed puppy, this formula contains DHA for proper brain and vision development. Carefully determined protein and mineral content, along with omega fatty acids and antioxidants, help support your large breed puppy's growth and development. L-Carnitine helps to convert protein and fat into energy for a healthy body condition.

  • - Diamond Naturals Large Breed Puppy Lamb and Rice dry dog food; REAL PASTURE-RAISED LAMB is the #1 ingredient; specially formulated with carefully determined protein and mineral content to support the needs of LARGE BREED PUPPIES
  • - Appropriate nutrient levels to fuel larger growing bodies; vitamins and minerals from SUPERFOOD fruits like blueberries and oranges; omega fatty acids for healthy SKIN and COAT
  • - Each serving includes species-specific K9 Strain PROPRIETARY PROBIOTICS - plus antioxidants and prebiotics - to help support healthy digestion, IMMUNE system and overall health and wellness
  • - FAMILY-OWNED and MADE in the USA using quality ingredients from trusted domestic and global sources
  • - Formulated without corn wheat, artificial flavors or colors

Please note that the product information displayed is provided by manufacturers, suppliers and other third parties and is not independently verified by Petco.

Specifications

SKU3173716
LifestagePuppy
Primary FlavorLamb
Primary BrandDiamond
Days to ShipShips Next Business Day
Weight40 LBS

Reviews

Rating Snapshot

Select a row below to filter reviews.

5 stars

274

4 stars

8

3 stars

4

2 stars

4

1 stars

18

Overall Rating

4.7
231 out of 242 (95%) reviewers recommend this product

Review this Product

Adding a review will require a valid email for verification
Customers say

Customers overwhelmingly praise this large breed puppy food for supporting healthy growth, shiny coats, and strong energy levels. Most report puppies thriving with consistent weight gain and vitality, while many highlight noticeably soft, lustrous coats. Reviewers frequently note that picky eaters now enthusiastically devour meals. Many customers express deep loyalty, feeding it for years across multiple puppies and citing veterinarian recommendations. A small number report rare digestive issues, typically attributed to transition speed. Overall, most consider it a trusted, reliable choice for large breed puppy development.

Most Helpful Favorable Review

High quality grain inclusive large breed puppy

PaintHorseLuver

5 years ago

After researching a couple different brands in search of a high quality, grain i...

Show Full Review

21 PEOPLE FOUND THIS HELPFUL

Show Reviews:

5

and

4

Most Helpful Critical Review

Beware of soft stools

Amy5600

2 years ago

Going back to pro plan. Switched to this cause I was worried about a chicken all...

Show Full Review

15 PEOPLE FOUND THIS HELPFUL

Show Reviews:

3

2

and

1

Customer Images

Filter Reviews

1 - 8 of 247 Reviews

61 Ratings-Only Reviews

Lamb and Rice for my Golden has been amazing!

Enzo

15 days ago
Took a few veterinarians to recommend the lamb and rice for my golden. On my fourth now and he doesn't itch or scratch, his coat literally feels like silk, he has had no problems whatsoever and I will stick with this brand his entire life. He is one happy boy! 8 months old today! Thank you, Diamond!

Originally posted on diamondpet.com

Great ingredients and affordable!

RN 64

1 month ago
My five month old rough collie puppy has been on Diamond Naturals Large Breed puppy food since he was weaned. He is in excellent health! I am happy with both the ingredients and the price!

Originally posted on diamondpet.com

Puppy Approved!

Daisy Mae's Mama

1 month ago
Our breeder feeds her dogs and puppies Diamond Naturals and sent us home with a bag of the Large Breed Puppy Lamb and Rice. Our 9-week old Golden Retriever puppy loves this formula! I've had to increase the amount given because she just wanted more and more, and because she's a growing pup, she can have a little more. She's about 11 lbs now and eats around 1.5 cups 3x daily. She gets so excited, sometimes telling me when she wants to eat by standing at her food bin and barking at me, lol! Needless to say, we'll be sticking with this brand as she clearly loves it. And I love that it's healthy for her and not packed with all kinds of unhealthy fillers and byproducts I see in so many other brands.

Originally posted on diamondpet.com

Wonderful food

Thib110

2 months ago
I have been using this product on my Cane Corso for 7months and they do wonderful

Originally posted on diamondpet.com

Healthy Food

Ruvdog

4 months ago
From birth at breeder to 8 months now, my lab has grown strong, active, and healthy. Impressed by quality and effort put into recipe. I do supplement with carrots, egg, salmon oil, low-fat cottage, and non-fat yogurt (one only per day). Plan to stay on Diamond as adult dog.

Originally posted on diamondpet.com

Nope

Lucy26

4 months ago
I have a 19 month old mixed breed. We’ve been trying different dry dog foods to find the one she likes. This was by far the worst. She would not eat it unless very hungry and hand fed. The concerning part is she went straight to the water after eating and consumed a large bowl of water. High sodium count in the dry food? No other food caused this. We threw the bag of dog food away.

Originally posted on diamondpet.com

Response from diamondpet.com:
4 months ago
Diamond Pet Foods
We’re sorry to hear your pet did not enjoy Diamond Naturals Large Puppy Lamb & Rice Formula. All of our recipes are formulated to meet the Association of American Feed Control Officials (AAFCO) nutrient requirements, including sodium. If you’re interested in trying a different formula and/or receiving a personalized formula recommendation, please visit dpf.pet/contact-us

My puppy's stool is normal for the 1st time in 8 months!!

Ozzy's Mom

7 months ago
We adopted our rescue pup in late June (2025) He arrived with a bag Science Diet Puppy. He had diarrhea. We transitioned him to Science Diet Puppy sensitive stomach. He still had diarrhea.We got his DNA back and found he was all large breed dogs. We transitioned him to Purina Pro Plan Sensitive Skin and Stomach Puppy Large Breed Salmon & Rice Formula. He still had diarrhea. I did more research and decided to transistion him to Diamond Naturals Large Breed Puppy Lamb and Rice. For the first time in 8 months his poop is normal!!! And he loves it!!! Thank You Diamond!!!

Originally posted on diamondpet.com

Consistently inconsistent

Jolly

7 months ago
We've been getting this food for our dog for half a year now. Every few bags some freshly opened others almost gone eventually make her sick. I don't understand if it's an issue with storage in warehouse or in production. It's been bought through chewy and in store in pet supplies plus and there's been an issue with a bag or two from each.

Originally posted on diamondpet.com

Response from diamondpet.com:
7 months ago
Diamond Pet Foods
Thank you for reaching out. We’re sorry to hear your dog has not done well on this formula. The health and safety of all pets is our number one priority, so our team would like to look into this for you and learn more about what your dog experienced. You can reach us directly on our website dpf.pet/contact-us.
1 - 8 of 247 Reviews

Questions

1 - 3 of 3 Questions

My 8 month old puppy is Bully and Pitbull. What’s the best food for him to eat? And how much of it daily? He about 50-60lbs.

  1. Large breed puppy chow. Feeding directions are on the bag. 



How many ounces per day for a 40 lb English lab that is 1 year old?

  1. 24 oz. (3 cups)



How big are the kibbles? My puppy has a tough time with the little tiny pieces and he doesn't seem to have a problem with my senior dog's Diamond Adult Lamb and Rice.

  1. They're not as small as some puppy food I have seen, which I like! I would say a large pea size shape. Or a chickpea. 



Related Articles & Questions