Diamond Naturals Large Breed Puppy 40 lb
- Dry Food
- Bag
- Veterinary Diet
- 40 pounds
A large-breed puppy formula built around lamb and rice with probiotics, sized as a 40 pound bag for the growth-stage feeding period.
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How it ranks among the 155 dry food we track
4.5★ across 3,852 Amazon ratings, Bayesian-smoothed toward the category average.
3,852 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
3,000+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 155 dry food we track - how the scorecard works · full dry food data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
Diamond Naturals' large breed puppy formula, a lamb and rice recipe sold in a 40 pound bag and formulated for growth and development in large breed puppies.
It's built specifically for large breed puppies rather than puppies generally, with probiotics included for digestive and immune support alongside ingredients aimed at brain, eye, skin and coat development. The listing marks it pea-free and additive-free, though the flavor name references rice, worth checking directly if you're avoiding grains entirely.
- 40 lb bag
- Large breed puppy formula
- Lamb and rice recipe
- Probiotics included
Who it's for
Owners of large breed puppies wanting a growth formula with probiotics and named support for brain, eye, and skin health. Not intended for adult dogs or small and medium breed puppies, since it's formulated for large breed growth specifically.
Strengths and trade-offs
Drawn from this product's published specifications.
- Formulated specifically for large breed puppy growth
- Includes probiotics for digestive and immune support
- Pea-free and additive-free ingredient claims
- Large 40 lb bag suits growing large breeds
- Not suitable for adult dogs or non-large breeds
- Grain-free claim conflicts with the lamb and rice name
Performance notes
Probiotics are included specifically for digestive health and immune support during the puppy growth stage, while the large breed sizing targets the slower, controlled growth rate that big-breed puppies need compared with a general puppy formula.
Specifications
| Brand | Diamond |
|---|---|
| Model | 117-ST28 |
| Dimensions & fit | |
| Item Weight | 40 pounds |
| Package Size Name | 40 Pound |
| Dog Breed Size | Large |
| Capacity & performance | |
| Age Range Description | Puppy |
| Included components | |
| Unit Count | 40 pounds |
| Included Components | Pet Food |
| Other details | |
| Container Type | Bag |
| Animal Food Diet Type | Veterinary Diet |
| Number Of Items | 1 |
| Best Sellers Rank | #3,757 in Pet Supplies (See Top 100 in Pet Supplies) #272 in Dry Dog Food |
| Product Benefits | Supports large breed puppy growth and development |
| Breed Recommendation | Large Breeds |
| Occasion | Birthday |
| Animal Food Ingredient Claim | Additive-Free |
| Manufacturer Part Number | 117 |
| Flavor | Lamb & Rice - Puppy |
| Model Number | 117-ST28 |
| Item Form | Pellet |
| Recommended Uses For Product | Growth and development of large breed puppies, skin and coat health, immune support, overall well-being |
| Additional Features | Probiotics for digestive health and immune support |
| Manufacturer | Diamond Pet Foods, Inc. |
| Allergen Information | Pea-Free |
| Target Species | Dog |
| Customer Reviews | {'ratings_count': '3,852', 'stars': '4.5'} |
| Upc | 074198608379 |
| Item Type Name | Dry Dog Food |
| Special Ingredients | grain-free |
| Asin | B000WFKDT6 |
| Specific Uses For Product | Brain Health, Eye Care, Immune Support, Skin and Coat Health |
Other Diamond dry food
How it compares
This product against the closest alternatives we track in dry food.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Diamond Naturals Large Breed Puppy 40 lbThis product | 4.5 / 5 | 3,852 | 4.5 / 5 |
| Hill's Science Diet Adult 1-6 Small & Mini Dry Dog FoodHill's | 4.8 / 5 | 26,044 | 4.7 / 5 |
| IAMS Proactive Health Adult Minichunks Premium Dry Dog FoodIAMS | 4.7 / 5 | 31,844 | 4.6 / 5 |
| Blue Buffalo Life Protection Formula Chicken & Brown Rice Adult Dry Dog FoodBlue | 4.7 / 5 | 29,281 | 4.6 / 5 |
| Cesar Small Breed Dry Dog Food for Small DogsCesar | 4.7 / 5 | 19,500 | 4.6 / 5 |
Similar dry food from other brands
Questions about the Diamond 117-ST28
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What breed size is Diamond Naturals Large Breed Puppy formulated for?
Large breed puppies specifically, for controlled growth.
Does this formula include probiotics?
Yes, for digestive health and immune support.
What size bag does this come in?
A 40 pound bag.