Welcome to our Diamond Pro89 Dog Food Review.

Diamond Pro89 Dry Dog Food Review

Disclosure: As a Chewy affiliate, we earn commissions for qualifying purchases.

List of products

Diamond Pro89 Product	Ratings	AAFCO
→ Diamond Pro89 Beef, Pork & Ancient Grains Formula	4.5	All Life Stages

This dog food line has only one recipe. The review of the Beef, Pork & Ancient Grains Formula represents the quality, nutrition, and composition of this line.

Buy at Best Price!

Ingredients

Beef, pork, beef meal, grain sorghum, whole grain brown rice, chicken fat (preserved with mixed tocopherols), millet, fish meal, dried beet pulp, natural flavor, flaxseed, quinoa, chia seed, potassium chloride, salt, DL-Methionine, choline chloride, taurine, glucosamine hydrochloride, L-Carnitine, dried Lactobacillus plantarum fermentation product, dried Bacillus subtilis fermentation product, dried Lactobacillus acidophilus fermentation product, dried Enterococcus faecium fermentation product, dried Bifidobacterium animalis fermentation product, vitamin E supplement, chondroitin sulfate, iron proteinate, zinc proteinate, copper proteinate, ferrous sulfate, zinc sulfate, manganese sulfate, copper sulfate, potassium iodide, thiamine mononitrate, manganese proteinate, ascorbic acid, vitamin A supplement, biotin, niacin, calcium pantothenate, sodium selenite, pyridoxine hydrochloride, vitamin B12 supplement, riboflavin, vitamin D3 supplement, folic acid.

Ingredient Analysis

The first five ingredients are highlighted as the primary ingredients in this Diamond Pro89 Dog Food Review.

Primary Ingredients

→ Beef is a common source of protein in dog foods. It contains a lot of protein, antioxidants, and amino acids that help build strong muscles, support a healthy immune system, and provide energy.

It also contains glucosamine, which supports joint health and mobility.

However, some dogs may be allergic or sensitive to beef, as it is a common allergen for them.

→ Pork is the meat from domesticated pigs and is commonly used in pet foods for its rich flavor and nutrient content.

It provides a palatable, easily digestible source of protein and B vitamins that support muscle maintenance and energy.

Raw pork can carry parasites, but this should not be a problem in cooked or extruded dog food. Each 100 grams of raw ground pork contains approximately 17.8 grams of protein and 17.5 grams of fat.

→ Beef meal is rendered beef that has been dried and ground, typically including clean flesh, skin, and bone.

It contains a high protein concentration—around 60–70%—which supports muscle growth and overall strength.

Beef meal is also a natural source of essential nutrients like iron, zinc, and B vitamins, contributing to energy production and immune system health.

→ Sorghum, an ancient grain native to Africa, is an excellent source of carbohydrates and a valuable source of protein. Compared with grains like rice, it typically has a lower glycemic index. It also provides important minerals, most notably phosphorus and magnesium, making it a wholesome, nutrient-dense addition to the diet.

Each 100 g of dry, raw, pearled white sorghum contains 74.9 g of carbohydrates and 10.2 g of protein.

→ Whole grain brown rice is a gluten-free grain that includes the bran, germ, and endosperm. It provides B vitamins, minerals, and energy from complex carbohydrates, while its fiber supports healthy digestion. It is generally safe for dogs with allergies to wheat or other gluten-containing grains.

Secondary Ingredients

The three ingredients immediately following the primary ingredients are highlighted as the secondary ingredients in this Diamond Pro89 Dog Food Review.

→ Chicken fat is the fat separated from chicken tissues during rendering. It is commonly used in dog food as a concentrated energy source and flavor enhancer.

It is rich in omega-6 fatty acids, such as linoleic acid, and is often preserved with mixed tocopherols to maintain freshness.

→ Millet is a naturally gluten-free whole grain commonly used in dog foods to deliver carbohydrates, protein, fiber, and key nutrients such as B-vitamins and iron, all of which support steady energy levels and healthy digestion. Gentle on the stomach, it is an excellent choice for dogs with grain sensitivities or allergies.

Each 100 g of millet contains 74.4 g of carbohydrates and 10 g of protein.

→ Fish meal is a concentrated protein source made by cooking, drying, and grinding fish (often whole fish or leftover parts) into a powder.

It retains many benefits of whole fish, like omega-3 fatty acids for healthy skin and fur, but its quality depends on the fish species and its processing method.

Other Ingredients

→ Dried beet pulp is a widely used and cost-effective fiber source in dog food. It contains both soluble fibers, like pectin, and insoluble fibers. These act together to support digestive health by improving stool quality, promoting bowel regularity, and helping to regulate appetite.

→ Natural flavor is an ingredient derived from plant or animal sources used to enhance taste and palatability.

It is commonly added to pet food to make it more appealing to dogs and may be sourced from herbs, meats, or concentrated extracts of animal products.

→ Flaxseed is a natural source of omega-3 and omega-6 fatty acids that help keep skin healthy, make coats shiny, and reduce inflammation in dogs.

Every 100g of ground flaxseed contains around 18g of protein, 37.3g of fat, 34.4g of carbs, and 23.1g of fiber.

The Beef, Pork & Ancient Grains Formula includes other beneficial ingredients further down the list to support your dog’s health. However, we won’t explore them in detail here due to the scope of this Diamond Pro89 Dog Food Review.

Nutrient Sources - Diamond Pro89 Dog Food Review

Nutrient	Sources
Protein	Beef, Pork, Beef Meal, Grain Sorghum, Whole Grain Brown Rice, Millet, Fish Meal, Dried Beet Pulp, Flaxseed, Quinoa, Chia Seed
Fat	Beef, Pork, Beef Meal, Grain Sorghum, Whole Grain Brown Rice, Chicken Fat, Millet, Fish Meal, Flaxseed, Quinoa, Chia Seed
Carbohydrate	Grain Sorghum, Whole Grain Brown Rice, Millet, Dried Beet Pulp, Flaxseed, Quinoa, Chia Seed
Fiber	Grain Sorghum, Whole Grain Brown Rice, Millet, Dried Beet Pulp, Flaxseed, Quinoa, Chia Seed

Vitamins

This formula supplies essential vitamins A, D, E, and C, as well as a complete B-complex (B1, B2, B3, B5, B6, biotin, folic acid, and B12).

Vitamin K is not listed. However, dietary supplementation is typically unnecessary because dogs obtain it from gut microbial synthesis and natural ingredient sources.

Most vitamins are supplied in synthetic form to ensure precise dosing, and mixed tocopherols help preserve fat stability. No apparent gaps in vitamin adequacy are present.

Minerals

Beef, Pork & Ancient Grains Formula provides complete mineral nutrition for canines.

Chelated minerals (iron, zinc, copper, and manganese proteinate) are highly bioavailable and efficiently absorbed. Non-chelated minerals (sulfates and iodides) are effective but less efficiently absorbed.

Notably, calcium is not listed as a direct supplement but is naturally present in small amounts in ingredients such as beef meal, pork, and fish meal.

Ingredient Concerns

This dog food recipe has several potential concerns worth noting. First, it contains multiple animal proteins, including beef, pork, and fish, which could pose allergen risks for dogs sensitive to one or more protein sources.

Some ingredient terms, such as “fish meal” and “natural flavor,” are vague, making it unclear exactly which by-products or species they refer to.

Listing multiple grains separately, such as grain sorghum, brown rice, millet, quinoa, and chia, can mask the combined carbohydrate content relative to protein, a practice known as ingredient splitting.

This Diamond Pro89 Dog Food Review highlights both the strengths and potential concerns in the formulation, giving pet owners a clearer picture of what to expect from this popular dry dog food line.

Nutrient Analysis

Moisture=10% Max

Method of Analysis	Protein	Fat	Carbs	Fiber
→ Guaranteed Analysis	30%	20%	29.8%	2.2%
→ Dry Matter Basis	33.3%	22.2%	33.1%	2.4%
→ Calorie Content Basis	27.7%	44.8%	27.5%	NA

Normal dog food typically contains (18-35)% protein, (30–50)% carbohydrates and (9–25)% fat on a dry matter basis.

However, Beef, Pork & Ancient Grains Formula contains 33.3% protein, 22.2% fat, and approximately 33.1% carbohydrates on a dry matter basis.

This makes it Moderately High in protein, Moderately High in fat, and Moderately Low in carbohydrates.

Compliance with AAFCO and FEDIAF Standards

The Beef, Pork & Ancient Grains Formula contains 33.3% protein and 22.2% fat on a dry matter basis.

These levels exceed the minimum requirements for both adult maintenance and growth and reproduction, as set by AAFCO and FEDIAF standards, ensuring the food provides sufficient protein and fat to support your dog’s overall health.

Every recipe in Diamond Pro89 Dog Food line meets AAFCO and FEDIAF standards.

AAFCO Statement

“Diamond Pro89 Beef, Pork and Ancient Grains Formula for Adult Dogs is formulated to meet the nutritional levels established by the AAFCO Dog Food Nutrient Profiles for maintenance.”

The statement indicates that the recipe meets AAFCO nutrient requirements based on laboratory nutrient analysis, but it does not confirm that the food has undergone AAFCO-approved feeding trials.

Lab analysis verifies that the nutrient levels meet the required standards on paper, whereas feeding trials demonstrate real-world performance in dogs, including digestibility, palatability, and overall health outcomes.

Cost Analysis

Cost Metrics	40-lb bag
→ Cost per Unit	$59.99
→ Cost per Pound	$1.50
→ Cost per Serving	$0.39

The table shows that a 40-lb bag costs $59.99. This breaks down to a cost of $1.50 per pound and $0.39 per serving.

Chewy Autoship offers 35% off (up to $20) on your first order. For a 40-lb bag, the cost is $59.99, but on Autoship, it drops to $39.99, saving $20.

Chewy US

Note: Prices are subject to change based on retailer, location, and availability.

Pros and Cons - Diamond Pro89 Dog Food Review

Pros

Real beef listed as the #1 ingredient
Multiple animal protein sources for a broad amino-acid profile
Ancient grains blend (whole grain brown rice, grain sorghum, millet, quinoa)
Guaranteed K9 Strain Probiotics for digestive health
Joint support (glucosamine hydrochloride + chondroitin sulfate)

Cons

Allergen risk
Lack of transparency regarding the source of ingredients such as natural flavor and fish meal
Ingredient splitting can be seen

Recalls and Safety

The most significant Diamond Dog Foods recall occurred in 2012 after Salmonella Infantis linked to their Gaston, South Carolina plant prompted large, multi-brand recalls.

Diamond also issued a separate voluntary recall in 2013 for limited cat-food production codes because of possible low thiamine levels, which remains the most recent recall for this brand.

Stay Safe: Join Our Recall Alert Program!

Sign up now to get instant updates on dog food recalls, keeping your pet safe and healthy.Your privacy is important to us—your information is safe and won’t be shared.

Our Rating

Our dog food rating system gave the Beef, Pork & Ancient Grains Formula a rating of 4.5 out of 5. Similarly, the Diamond Pro89 Dog Food Review line received an overall rating of 4.5 out of 5.

Final Verdict

This article gives a basic look at dog food ingredients, but you should always ask your vet for specific advice. Your dog may have different needs, and an expert’s help is important.