Diamond Premium Adult Formula Dry Dog Food

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40-lb bag
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  • 40-lb bag
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Give your furry friend the precious gift of premium nutrition with Diamond Premium Adult Formula Dry Dog Food. Formulated from the highest quality ingredients, this food is made to make a difference with carefully determined levels of protein, fat and other vital nutrients to support your paw-thletic pooch’s ideal body condition. Essential minerals are chelated with amino acids to optimize their absorption and ensure maximum benefit. It’s also fortified with antioxidants and fiber for digestive and immune system support to help make sure your best friend gets all the nutrients she needs to maintain stamina and energy, day after day.

Key Benefits

  • Formulated with carefully determined levels of protein, fat and other vital nutrients for strong muscles, as well as stamina and energy for active, hardworking dogs.
  • Chelated minerals help ensure maximum absorption of vital nutrients; powerful antioxidants including selenium and vitamin E help support his immune system and overall health.
  • Chicken fat, along with fish meal and flaxseed, provide support for healthy skin, a shiny coat and overall well-being.
  • Complete and balanced nutrition is formulated with essential vitamins and nutrients, along with dried beet pulp for healthy digestion.
  • Manufactured under rigorous production standards in Diamond’s state-of-the-art U.S. facilities using the highest quality ingredients.

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  • Item Number
  • Weight
    40.0 pounds
  • Breed Size
    All Breeds, Small Breeds, Medium Breeds, Large Breeds
  • Food Form
    Dry Food
  • Lifestage
  • Made in
    United States

Nutritional Info


Chicken By-Product Meal, Whole Grain Ground Corn, Wheat Flour, Chicken Fat (Preserved with Mixed Tocopherols), Brewers Rice, Dried Beet Pulp, Egg Product, Flaxseed, Natural Chicken Flavor, Fish Meal, Potassium Chloride, Salt, Choline Chloride, Vitamin E Supplement, Iron Proteinate, Zinc Proteinate, Copper Proteinate, Ferrous Sulfate, Zinc Sulfate, Copper Sulfate, Potassium Iodide, Thiamine Mononitrate, 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 D Supplement, Folic Acid.

Caloric Content

4,310 kcal/kg, 435 kcal/cup

Guaranteed Analysis
Crude Protein 26.0% min
Crude Fat 18.0% min
Crude Fiber 3.0% max
Moisture 10.0% max
Docosahexaenoic Acid (DHA) 0.05% min
Calcium 1.0% min
Phosphorus 0.8% min
Zinc 150 mg/kg min
Selenium 0.35 mg/kg min
Vitamin E 150 IU/kg min
Omega-6 Fatty Acids 3.0% min
Omega-3 Fatty Acids 0.5% min

Feeding Instructions

Weight Daily Feeding for Ages 6-12 Weeks Daily Feeding for Ages 3-5 Months Daily Feeding for Ages 5-8 Months Daily Feeding for Ages 8-12 Months Daily Feeding for Adult Dogs
5-10 lbs 1 - 1 1/2 cups 3/4 - 1 1/3 cups 3/4 - 1 1/4 cups 2/3 - 1 cup 1/2 - 3/4 cup
10-20 lbs 1 1/2 - 2 1/3 cups 1 1/3 - 2 1/4 cups 1 1/4 - 2 cups 1 - 1 1/2 cups 3/4 - 1 1/3 cups
20-30 lbs 2 1/3 - 3 1/3 cups 2 1/4 - 3 cups 2 - 2 3/4 cups 1 1/2 - 2 1/4 cups 1 1/3 - 1 3/4 cups
30-40 lbs 3 1/3 - 4 1/4 cups 3 - 3 3/4 cups 2 3/4 - 3 1/2 cups 2 1/4 - 3 cups 1 3/4 - 2 1/4 cups
40-60 lbs 3 1/2 - 5 cups 3 - 4 cups 2 1/4 - 3 cups
60-80 lbs 5 -6 2/3 cups 4 - 5 1/3 cups 3 - 3 1/2 cups
80-100 lbs 5 1/3 - 6 1/2 cups 3 1/2 - 4 cups
60-80 lbs 4 - 5 cups 3 1/4 - 4 cups 2 1/2 - 3 cups
80-100 lbs 5 - 6 cups 4 - 4 2/3 cups 3 - 3 2/3 cups

Transition Instructions

When transitioning your pet to a new food, we recommend a gradual introduction of the new formula over a 7 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.

About Diamond Naturals Dry Dog Food and Treats

Uncompromising Holistic Nutrition

Uncompromising Holistic Nutrition

Diamond Naturals dog food provides high-quality holistic formulas designed to meet every pet's needs. These nutritious recipes are enhanced with proprietary probiotics for good digestion and immune system support, and superfoods are added to supply nutrients that keep animals strong and healthy.

Superfoods That Deliver

They didn't just add a few superfoods here and there in Diamond Naturals. You'll find 10-20% superfoods in all Diamond Naturals dry foods, made up of tasty ingredients like kale, blueberries, chia seeds, pumpkin, quinoa, coconut and spinach.

Balanced Digestive Support

Balanced Digestive Support

Foods with added probiotics allow more nutrients to be absorbed and used by your dog's body, and that leads to better digestion and overall health. Diamond Naturals foods are enhanced with patented and powerful K9 Strain probiotics. Prebiotic fiber from chicory root plus soluble and insoluble fibers from pumpkin, coconut and dried kelp give extra digestive support.

Really Delicious Real Proteins

Made with real beef, lamb or chicken, Diamond Naturals dog food satisfies carnivorous cravings meal after meal. These nutritious animal proteins have the essential amino acids your dog needs to keep running, playing, jumping and staying fit. High-quality proteins like these are the building blocks of healthy muscles and strong bones.

Really Delicious Real Proteins
Options for Sensitive Pets

Options for Sensitive Pets

All of Diamond Naturals' recipes exclude corn, wheat and soy, common fillers that are used in pet foods. If your dog is sensitive to this trio of ingredients, there's no need to worry when feeding Diamond Naturals. And for pups that have problems digesting grains, Diamond Naturals Grain-Free dog kibble is a great option for limiting exposure to these ingredients.

Don't Forget the Treats

When you want to reward your pup with a tasty treat, give him a Diamond Naturals biscuit. These crunchy bite-size snacks feature real lamb, chicken, beef or peanut butter plus whole flaxseed, rolled oats, turmeric and brown rice. They're all free of corn, wheat and soy, and they come in Large Breed with added glucosamine and Puppy biscuits that are smaller for tiny mouths.

About Diamond Pet Food

Headquartered in Missouri, family-owned Diamond Pet Food believes that every pet deserves the best food possible, and they've been delivering on that promise since 1970. They use state-of-the-art facilities across the USA to create quality cat and dog food made to the highest nutritional standards. Every formula balances protein, fat and essential nutrients to keep your pets active and healthy and performing their best.

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About Diamond Pet Food

Customer Reviews

14 reviews 14 Reviews 4.4 out of 5 Stars

93% Recommend

93% of reviewersrecommend this product

4.4 / 5

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  • My German Shepherd loves this food!

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    A 4 star dog food for a reasonable price. Mixed this with her regular pricier dog food and she preferred the diamond food, eating around her more expensive food.

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  • Dogs love it, but size and delivery could be better

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    Would like larger bags as my two large dogs go through it quickly. Would also appreciate it if the delivery guy would put it on my porch instead of leaving it in the driveway.

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  • Great food wonderful value.

    By on

    Wonderful nutrition at an affordable price. My dogs love this food. They have nice coats and maintain great health for years with this brand. Used it for over 10 years.

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  • Diamond premium adult dog food

    By on

    My dog really likes this food.and it keep him happy full of energy and looking great keeps his teeth clean keep him a very happy dog

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  • Quality

    By on

    I like Diamond for my dogs, it's a quality food. My dogs are farm dogs and I give them this higher protein one for winter and choose maintenance for summer!

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  • Great product at great price

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    My dog loves this dog food and the price at chewy.com is wonderful with the added convenience of delivery on the autoship program. Win win!!

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  • Excellent Dog Food

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    I started Diamond puppy as my breeder instructed for the first year. Just recently I went over to Diamond Premium Adult. No problems whatsoever. Recommend Diamond Dog Food.

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  • Recommended by Breeder of my Drahthaar Pointer

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    Trying to put some weight on Fritz. Only bought small bag to see how it works. Hopefully the 435 calories per cup will help do the job. Dog switched to this food without hesitation.

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  • Quality product

    By on

    I have a secondary reason for rating this food as high quality. I have a Blue Great Dane. This breed has a predisposition to a stomach disorder called bloat. Having stable food that does not expand in a wet environment has great importance to diminish the chance of this serious condition. Many other foods have cheap by-products that exponentially swell and expand in a wet environment adding physical weight and stress to the stomach. I highly recommend this product.

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  • Best Value For Quality

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    I was recommended this from someone that had a kennel. The quality really keeps the dogs healthy, and their fur in great condition. Does not have all those sketchy ingredients. Cannot find a better price for this type of quality dog food.

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