Diamond Naturals Large Breed Puppy Formula Dry Dog Food

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40-lb bag
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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. Also contains DHA for optimal brain and eye development.

Key Benefits

  • Salmon oil provides DHA (Docosahexaenoic acid), an omega-3 fatty acid that is important for brain and vision development in young puppies. In nursing adults, DHA is passed from the mother to the puppy or kitten through the mother’s milk.
  • Powerful antioxidants and phytonutrients from superfoods such as blueberries, oranges, spinach and carrots help to support the immune system and a healthy lifestyle.
  • Omega fatty acids from ingredients such as flaxseed, chia seed and coconut, are essential for healthy skin, a shiny coat and overall well-being
  • A blend of soluble and insoluble fibers from chia seed, pumpkin, dried kelp and coconut, combined with prebiotic fiber from dried chicory root, helps support a healthy digestive system
  • Real lamb provides ideal protein and fat levels for optimal nutrition and is an excellent source of high-quality protein to help dogs stay active and fit

See all items by Diamond

  • Item Number
  • Weight
    40.0 pounds
  • Breed Size
    Giant, Large
  • Food Form
    Dry Food
  • Lifestage
  • Made in
    United States
  • Special Diet
    No Corn No Wheat No Soy

Nutritional Info


  1. Lamb, Lamb Meal, Ground Rice, Cracked Pearled Barley, Peas, Garbanzo Beans, Chicken Fat (Preserved with Mixed Tocopherols), Egg Product, Fish Meal, Tomato Pomace, Pea Protein, Potato Protein, Potatoes, Natural Flavor, Flaxseed, Salmon Oil (Source of DHA), Salt, Potassium Chloride, Choline Chloride, Dried Chicory Root, L-Carnitine, Kale, Chia Seed, Pumpkin, Blueberries, Oranges, Quinoa, Dried Kelp, Coconut, Spinach, Carrots, Papaya, Yucca Schidigera Extract, Lactobacillus Acidophilus, Bifidobacterium Lactis, Lactobacillus Reuteri, Vitamin E Supplement, Beta Carotene, Iron Proteinate, Zinc Proteinate, Copper Proteinate, Ferrous Sulfate, Zinc Sulfate, Copper Sulfate, Potassium Iodide, Thiamine Mononitrate (Vitamin B1), Manganese Proteinate, Manganous Oxide, Ascorbic Acid, Vitamin A Supplement, Biotin, Niacin, Calcium Pantothenate, Manganese Sulfate, Sodium Selenite, Pyridoxine Hydrochloride (Vitamin B6), Vitamin B12 Supplement, Riboflavin (Vitamin B2), Vitamin D Supplement, Folic Acid.

Caloric Content

  1. 3,650 kcal/kg, 342 kcal/cup
Guaranteed Analysis
Crude Protein 27.0% min
Crude Fat 15.0% min
Crude Fiber 4.0% max
Moisture 10.0% max
DHA (Docosahexaenoic Acid) 0.05% min
Calcium 1.2% min
Phosphorus 1.0% min
Zinc 150 mg/kg min
Selenium 0.35 mg/kg min
Vitamin E 150 IU/kg min
L-Carnitine 30 mg/kg min
Omega 6 Fatty Acids 2.0% min
Omega 3 Fatty Acids 0.3% min
Total Microorganisms 1,000,000 CFU/lb min

Feeding Instructions

Transition Instructions

When transitioning your pet to a new food, we recommend a gradual introduction of the new formula over a seven day period. For pets with sensitivities, extend the transition period to 10 to 14 days. Start by adding a small amount of your pet’s new food to his or her current food. Gradually, increase the new food amount and decrease the current food amount at each feeding until you are feeding only the new food.

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Customer Reviews

Diamond Naturals Large Breed Puppy Formula Dry Dog Food is rated 4.7 out of 5 by 82.
Rated 5 out of 5 by from Best quality for the price out there! I researched over 50 brands of dog food (excluding any that's first ingredients were corn or by-product with no meat) and this BY FAR was the cheapest per pound that meets the needs of my large breed puppy! Not only that, but ALL the ingredients are great (not limited to just the first 3 either). In addition to that, they have probiotics, glucosamine, Chondronitin, no soy, no corn, no wheat, no animal by-products! Manufactured right here in the US. This food also meets the nutritional percentages needed for my large breed German Shepherd puppy (particularly: calcium%, phosphorus%, calcium to phosphorus ratio, lower fat). Gets our pup's approval--she loves this food! She was on a Natural Balance limited ingredient lamb & brown rice food before (pretty similar) and strongly prefers the taste of this food! We actually use her kibble as training treats because she likes it so much!
Date published: 2017-01-17
Rated 5 out of 5 by from Quality doesn't have a price I have used Diamond products for the past 20 years and will continue to do so as long as I have dogs. I raise Mastiff puppies and can get the nice large puppies that my customers demand by feeding them Diamond puppy food. I start them in the small breed puppy but switch them to large breed puppy as they grow. I recommend Diamond to all my customers.
Date published: 2017-01-16
Rated 5 out of 5 by from Healthy kibble This is the only type of food I have been giving my puppy since she was 6 weeks old. My lab loves this food and it has been doing well for her. As for the comments about loose stools, whenever you switch a puppy to any different food, it takes time for their bodies to adjust. Especially if you switch them from a fatty food with little nutrients to this very healthy kibble. If they continue to have the issue, they may be sensitive to one of the ingredients and you will have figure out which ingredient that is. I highly recommend this food.
Date published: 2016-12-30
Rated 5 out of 5 by from High quality ingredients I had not heard of this brand before but the breeder I got my puppy from told me she uses Diamond Naturals exclusively for her puppies and their parents, and she sent me home with a one week supply. Since I had been used to feeding my other dogs the science or royal brands, I was a little skeptical, however upon reading the ingredients and content analysis I decided to give it a try. My puppy seems to love it and I am happy with the nutrition it provides (especially the probiotics and omega 3s). Not to be too graphic but my puppy's elimination has been regular with firm stools. I plan to keep my puppy on this until 6 months or so, then switch to the adult formula.
Date published: 2016-12-20
Rated 5 out of 5 by from This product is one of the best on the market. Our Rottweiler puppy has been thriving on this food since we gave it to him!! We are very satisfied with the quality of Diamond and will continue to use it throughout his adult life!!
Date published: 2017-01-17
Rated 5 out of 5 by from Great quality This is the food the breeder recommend for us and so far I like it alot.. it has a more pleasant smell than other similar foods and I like the range of good ingredients. Its very well balanced and I would very much recommend!
Date published: 2017-02-05
Rated 5 out of 5 by from Love this Puppy Food My Newfoundland puppy was switched to this a few weeks after getting him at 8 weeks old. He has had great steady growth and gobbles it up. I see all the comments about loose stools but I never had that issue. Especially since if you slowly change it isn't a shock to their system and the change should be ok. I took 10 days to transition foods and have no issues. I also changed my 11 year old lab to the grain free food and all her skin issues went away. I am a Diamond customer from now on!
Date published: 2016-12-22
Rated 5 out of 5 by from This is the best for a growing pup! I love this company and especially this product. It's saved me a fortune over the much more expensive, but no better, natural brands out there. The ingredients are right up there with the best, just compare them on here yourself to see it, and my 12 week old Pit Bull is happy as can be gobbling this down. Great value for the money, large 40 pound bags, and great success, more than this you can not ask for. Try it for yourself and see.
Date published: 2017-02-10
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