Diamond Naturals
Diamond Naturals Adult Lamb Meal & Rice Dry Dog Food (40 lb)
This is a researched pick — specs, prices, and owner reviews compared; not physically tested. Listing and price recorded Aug 6, 2026; confirm the current price on Amazon before buying. How we decide
Our verdict
💰 Best Value Dog Food
The tradeoff: Formulated to an AAFCO profile rather than proven in feeding trials.
+ What it gets right
- + Roughly $1 per pound — the best value on this list
- + Lamb meal first, a useful chicken alternative
- + Guaranteed probiotics added post-cooking
- + 40 lb bag suits large dogs and multi-dog homes
− Where it falls short
- − Diamond has a recall history worth knowing about
- − No AAFCO feeding trials — formulated to profile only
Key specs
- form
- Dry
- life stage
- Adult
- primary protein
- Lamb Meal
- bag size
- 40 lb
- grain inclusive
- Yes
- probiotics
- Yes
- feeding trials
- No
Why this pick won
The cost-per-pound winner that still reads like a real food. Pasture-raised lamb meal leads, guaranteed probiotics are added after cooking, and the omega fatty acid blend covers skin and coat. At a dollar a pound in a 40 lb bag, nothing here feeds a big dog cheaper without cutting the ingredient panel.
Full specifications
As published by the manufacturer on the retailer listing, read August 6, 2026. Specs change without notice — confirm anything critical on the listing before you buy.
- Manufacturer
- Diamond Pet Foods, Inc.
- Flavor
- Lamb Meal & Rice - Adult
- Item Form
- Dry Kibble
- Specific Uses For Product
- Digestive Health, Immune Support, Skin and Coat Health
- Breed Recommendation
- All Breed Sizes
- Allergen Information
- Pea-Free
- Recommended Uses For Product
- Skin and Coat Health, Digestive Health, Immune Support, Antioxidant Nutrition
- Target Species
- Dog
- Included Components
- Pet Food
- Unit Count
- 640 Ounce
- Number of Items
- 1
- Item Weight
- 40 pounds
- Brand
- DIAMOND NATURALS
- Age Range (Description)
- Adult
What the manufacturer claims
Diamond Naturals's own description, quoted from the product listing. These are marketing claims, not our findings — our assessment is the verdict and tradeoff above.
- Diamond Naturals Adult Dog Lamb Meal and Rice dry dog food; REAL PASTURE-RAISED LAMB PROTEIN is the #1 ingredient; protein helps support bones, joints and LEAN, STRONG MUSCLES
- Lamb protein and moderate levels of fat provide the nutrients your dog needs to stay active; 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