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Diamond Naturals

Diamond Naturals Large Breed Puppy Food 40 lb

  • 40 pound bag, 640 ounces
  • Large breed puppies only
  • Lamb and rice recipe
  • Probiotics for digestive and immune health
  • Pea-free and additive-free

Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A dry puppy food made specifically for large breeds, with probiotics and a lamb and rice recipe. The grain-free note looks odd beside rice in the flavor name, so check the bag.

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ASIN: B000WFKDT6Category: Dry Pet Foods

Overview

Not a formula for every dog, this is a pellet kibble written for large-breed puppies. It combines lamb and rice with probiotics, and supports brain, eye, immune and skin and coat health.

Large breeds grow differently from small ones, and a recipe sized for them is easier to match than a general puppy food. The limitation is a contradiction in the specs, which list grain-free alongside a rice recipe, and no nutrient numbers are shown.

Who it's for

Households raising a large-breed puppy through the growth stage are the audience. Owners of small breeds and adult dogs, and anyone who needs exact protein and calorie values, should look at other foods.

Pros and cons

Pros
  • Made for large-breed puppies
  • Brain and eye support listed
Cons
  • Grain-free claim conflicts with rice
  • Nutrient numbers not shown
  • Large breeds only

Performance notes

Probiotics are added to support digestion and immune function, and the lamb and rice base provides the main protein and carbohydrate. How quickly a puppy grows depends on portion size and age, and the page gives no feeding chart.

Specifications

BrandDiamond Naturals
Dimensions & fit
Dog Breed SizeLarge
Weight40 pounds
Capacity & performance
Age Range DescriptionPuppy
Included components
Unit Count640 ounces
Included ComponentsPet Food
Other details
Allergen InformationPea-free
FlavorLamb and rice, puppy
Special IngredientsGrain-free
Item FormPellet
Breed RecommendationLarge breeds
Animal Food Ingredient ClaimAdditive-free
Container TypeBag
Additional FeaturesProbiotics for digestive health and immune support
Animal Food Diet TypeVeterinary Diet
OccasionBirthday
Specific Uses For ProductBrain Health, Eye Care, Immune Support, Skin and Coat Health
Target SpeciesDog

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Frequently asked questions

What comes in the Diamond Naturals Large Breed Puppy bag?

One 40 lb bag of dry food. The included components line says only pet food.

Is Diamond Naturals Large Breed Puppy grain-free?

The special ingredients line says grain-free, while the flavor name lists rice, so the listing contradicts itself.

Can small breeds eat Diamond Naturals Large Breed Puppy?

The breed recommendation says large breeds, so it is written for them.

Does Diamond Naturals Large Breed Puppy contain probiotics?

Yes. The additional features line lists probiotics for digestive health and immune support.