Quick answer: Diamond Premium Adult is a kibble formulated for active dogs, with 26% protein and 18% fat, and at least 75% of its protein from animal sources. It is designed for all life stages, including growth of large-breed puppies that will weigh 70 lbs or more as adults.
Main Explanation
Diamond Premium Adult is marketed toward working dogs, show dogs, hunting dogs, and breeding dogs that need extra energy to maintain body condition. The formula uses chicken fat as a concentrated, easily digestible calorie source for stamina. Quality protein sources support muscle maintenance, and omega fatty acids are included to support skin and coat health. The guaranteed analysis shows minimum levels of 26% crude protein and 18% crude fat, with a maximum of 10% moisture. The food also contains glucosamine to help support joints and mobility.
Where to buy and price: The product is sold through various retailers. For example, one feed store lists a 40 lb bag at $43.00, while another lists the same size for $43.08. Availability and pricing may vary by location and bag size.
Decision Framework: How to Choose Diamond Premium Adult for Your Dog
Use these four ordered steps to decide if this food meets your dog's needs.
Step 1: Check your dog's activity level
This food is intended for dogs with higher energy demands, such as active, athletic, working, or performance dogs. If your dog is mostly sedentary, a lower-calorie maintenance formula might be more appropriate.
Step 2: Confirm the life stage and size
Diamond Premium Adult is labeled for all life stages, including the growth of large-size dogs (70 lbs or more as an adult). That means it can be fed to puppies of large breeds, adult dogs, and senior dogs, but always check the feeding chart from the manufacturer.
Step 3: Compare the guaranteed analysis with your dog's needs
Review the nutrient levels below against your veterinarian's recommendations:
| Nutrient | Minimum Level |
|---|---|
| Crude Protein | 26.0% |
| Crude Fat | 18.0% |
| Crude Fiber | 3.0% max |
| Moisture | 10.0% max |
| DHA | 0.05% |
| Calcium | 1.2% |
| Phosphorus | 1.0% |
| Omega-6 Fatty Acids | 3.0% |
| Omega-3 Fatty Acids | 0.5% |
| Zinc | 150 mg/kg |
| Vitamin E | 150 IU/kg |
Step 4: Follow the feeding guidelines and transition plan
Adjust portions based on your dog's weight and age using the manufacturer's feeding chart. When switching from another food, gradually mix in Diamond Premium Adult over a 7‑day period; for dogs with sensitivities, extend the transition to 10–14 days.
| Adult Dog Weight | Daily Feeding (cups) |
|---|---|
| 5–10 lbs | ½–¾ cup |
| 10–20 lbs | ¾–1⅓ cups |
| 20–30 lbs | 1⅓–1¾ cups |
| 30–40 lbs | 1¾–2¼ cups |
| 40–60 lbs | 2¼–3 cups |
| 60–80 lbs | 3–3½ cups |
| 80–100 lbs | 3½–4 cups |
(These amounts are based on the published feeding chart. Actual needs may vary by activity level, metabolism, and other factors.)
Practical Takeaways
- Best for active dogs that need a higher fat and protein diet to maintain energy and muscle.
- Can be fed to large-breed puppies because it meets nutritional levels for all life stages.
- Use the feeding chart and transition schedule to avoid digestive upset.
- Compare price and availability across local feed stores and online retailers; a 40 lb bag is around $43.
- No hands-on testing was conducted for this article. All specifications come from the manufacturer's published data and retailer listings.
References:
- Justin Seed – Diamond Premium Adult product page. https://justinseed.com/product/diamond-premium-adult
- Diamond Pet Foods – Diamond Premium Formula for Dogs. https://www.diamondpet.com/dog/diamond/premium
- Petsense – Diamond Premium Adult Dry Dog Food. https://www.petsense.com/products/diamond-premium-adult-dry-dog-food
- Solon Feed Mill – Diamond Premium Adult Dry Dog Food (includes guaranteed analysis and feeding chart). https://www.solonfeedmill.com/store/diamond-premium-adult-dog-food
- Amazon listing – Diamond Premium Adult Dry Dog Food. https://www.amazon.com/Diamond-Premium-Complete-Balanced-Working/dp/B0018CLUP8
- 1800PetMeds – Diamond Premium Adult Formula Dry Dog Food. https://www.1800petmeds.com/dog/food/product/diamond-premium-adult-formula-dry-food/prod63572.html
- Poudre Pet and Feed Supply – Diamond Premium Adult Dry Dog Food. https://poudrefeed.com/products/diamond-k9-premium-50-55-5499
- Economy Feed Mill – Diamond Premium Adult Dog Food. https://economyfeedmills.com/product/diamond-dog-food
