Diamond Naturals Dog Food Review

This is a complete Diamond Naturals dog foods review, one of the best selling dry dog foods on the market.

Diamond Pet Foods is family-owned company, established in 1970 in Meta, Missouri, United States by brothers-in-law Gary Schell and Richard Kampeter.

Diamond produce several lines of dry and wet food, and today we’ll focus on their most popular line of dry food, Diamond Naturals, including their grain-free variants.

Their dog food is made in six facilities in the United States and the majority of ingredients are sourced in the US. However, they source some ingredients globally, primarily the ingredients that are not commonly available in the US, such as essential nutrients taurine and B vitamins.

Diamond Pet Foods pay a close attention to the food safety, and all meat in their food passed USDA inspection. Besides USDA inspection, they perform more than 7,500 ingredient nutritional test each month.

A quick look at the best Diamond Naturals Dog Food formulas

How we chose

Because choosing the right food for your dog can be confusing and overwhelming, we reviewed all Diamond Naturals dog foods.

Every product on our list has been vetted to ensure that it aligns with Barking Royalty’s brand integrity standards and approach to well-being. Each product in this article:

  • adheres to allowable health claims and labeling requirements
  • is manufactured in facilities that adhere to current good manufacturing practices (CGMPs)
  • is produced by a medically credible company that follows ethical, legal, and industry best standards
  • is made by a company that provides objective measures of trust

Additional factors we considered included:

  • Ingredients. We looked for supplements that are free of unnecessary ingredients such as fillers and artificial
  • sweeteners and colors.
  • AAFCO Dog Food Nutrient Profile. We checked if the food meets the nutritional levels established by the AAFCO.
  • Price. We included products to suit a range of budgets.

Barking Royalty’s picks for the best Diamond Naturals dry foods

Best all life stages

Diamond Naturals Chicken & Rice Formula All Life Stages

  • Price: $$
  • Energy: 3,708 kcal/kg (421 kcal/cup)
  • AAFCO Profile: All Life Stages, growth of large size dogs
  • Grain-free: No

Diamond Naturals Chicken & Rice is formulated according to AAFCO standards and it meets AAFCO Dog Food Nutrient Profiles for All Life Stages including growth of large size dogs (70 lbs. or more as an adult).

Crude Protein26.0% Minimum
Crude Fat16.0% Minimum
Crude Fiber2.5% Minimum
Moisture10.0% Minimum
Omega-3 Fatty Acids2.5% Minimum
Omega-6 Fatty Acids0.4%
Omega-6 To Omega-3 Ratio6.25, healthy

The first ingredient in this formula is cage-free chicken for great taste and nutrition, followed by a chicken meal, whole grain brown rice, cracked pearled barley, and white rice.

This formula is enhanced with superfoods such as kale, chia seed, pumpkin, and blueberries. These foods are great sources of antioxidants, vitamins, minerals, fatty acids, and proteins.

Besides these superfoods, Diamond Naturals Chicken & Rice formula contains fibers from chia seeds, pumpkin, dried kelp, and coconut, as well as prebiotic fiber from dried chicory root.

It also contains guaranteed probiotics that will boost your dog’s digestive health.

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Best for adults

Diamond Naturals Lamb Meal & Rice Adult Formula

  • Price: $$
  • Energy: 3,550 kcal/kg (403 kcal/cup)
  • AAFCO Profile: Adult Dog, to meet the nutritional levels
  • Grain-free: No

Diamond Naturals Adult Dog Lamb Meal & Rice Formula is formulated according to AAFCO standards and it meets AAFCO Dog Food Nutrient Profiles for maintenance.

Crude Protein23.0% Minimum
Crude Fat14.0% Minimum
Crude Fiber4.0% Minimum
Moisture10.0% Minimum
Omega-3 Fatty Acids0.4% Minimum
Omega-6 Fatty Acids2.2%
Omega-6 To Omega-3 Ratio5.5, healthy

This formula is rich in lamb meat that is packed with protein and followed by ground white rice, cracked pearled barley, egg product, and rice bran.

Specially designed to generate energy in dogs and repair muscles, this formula is enriched with chia seed, pumpkin, blueberries, and spinach. As such, this protein-packed formula is one spot for minelars, vitamins, and fatty acids.

Next to the listed ingredients, Diamond Naturals Lamb Meal & Rice Formula for Adult Dog contains quinoa, oatmeal, and oranges.

Thanks to its fatty content, this formula is great for a dog’s skin and coat.

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Best for large breed adults

Diamond Naturals Large Breed Adult Chicken & Rice Formula

  • Price: $$
  • Energy: 3,499 kcal/kg (397 kcal/cup)
  • AAFCO Profile: Large Dog Breed for maintenance
  • Grain-free: No

Carefully designed to meet AAFCO’s standards, Diamond Naturals Large Breed Adult Dog Chicken & Rice Formula will meet the AAFCO Dog Food Nutrient Profiles for maintenance.

Crude Protein23.0% Minimum
Crude Fat13.0% Minimum
Crude Fiber3.5% Minimum
Moisture10.0% Minimum
Omega-3 Fatty Acids0.3% Minimum
Omega-6 Fatty Acids2.0%
Omega-6 To Omega-3 Ratio6.67, healthy

For great taste and protein, this formula uses cage-free chicken first flavored with whole grain brown rice, ground white rice, chicken fat, and cracked pearled barley.

This formula is marred with fruit and vegetables, including kale, pumpkin, oranges, blueberries, and coconut.

To deliver gut health it offers a bit of spinach of carrots.

These foods are not only a great source of vitamins, and minerals, but also a great source of fibers.

Besides these superfoods, Diamond Naturals Large Breed Adult Chicken & Rice Formula contains fibers from papaya, chia seed, and quinoa.

It also contains a source of naturally occurring microorganisms that can improve overall health growth.

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Best for small breed adults

Diamond Naturals Small Breed Adult Chicken & Rice

  • Price: $$
  • Energy: 3,499 kcal/kg (397 kcal/cup)
  • AAFCO Profile: Small Breed Adult Dog, maintenance
  • Grain-free: No

Diamond Naturals Small Breed Adult Chicken & Rice is carefully designed to support the growth of small breed puppies by providing the right nutrients.

Crude Protein27.0% Minimum
Crude Fat16.0% Minimum
Crude Fiber3.0% Minimum
Moisture10.0% Minimum
Omega-3 Fatty Acids0.4% Minimum
Omega-6 Fatty Acids2.4%
Omega-6 To Omega-3 Ratio6, healthy

The first ingredient in this formula is cage-free chicken for full taste and balanced nutrition, followed by cracked pearled barley, ground white rice, grain sorghum, and chicken fat.

Small breed dogs need small kibble so they can pick up and chew without struggles and disturbances, which this type of food offers.

Diamond Naturals Small Breed Adult Chicken & Rice formula is enhanced with egg product, oranges, and blueberries.

For additional fiber support, this formula contains kale, pumpkin, spinach, and carrots.

Besides these superfood ingredients, Diamond Naturals Small Breed Adult Chicken & Rice formula contains coconut which supports skin health in dogs and helps reduce hot spots and flea allergies.

It also contains dried chicory root that promotes the regeneration of healthy bacteria in the gut.

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Best for large breed puppies

Diamond Naturals Large Breed Puppy Lamb & Rice Formula

  • Price: $$
  • Energy: 3,650 kcal/kg (414 kcal/cup)
  • AAFCO Profile: Large Dog Breed Puppies for maintenance
  • Grain-free: No

Diamond Naturals Large Breed Puppy Lamb & Rice Formula is formulated according to AAFCO standards and it meets the AAFCO Dog Food Nutrient Profiles for All Life Stages including the growth of large size dogs (70 lbs. or more as an adult).

Crude Protein27.0% Minimum
Crude Fat15.0% Minimum
Crude Fiber3.5% Minimum
Moisture10.0% Minimum
Omega-3 Fatty Acids0.3% Minimum
Omega-6 Fatty Acids2.0%
Omega-6 To Omega-3 Ratio6.67, healthy

The first ingredient in this formula is lamb meat to support overall growth in larger size dogs, followed by a lamb meal, whole grain brown rice, egg product, and chicken fat.

To support the growth of large dog breed puppies this formula is packed with superfoods such as blueberries, oranges, quinoa, dried kelp, and coconut.

These ingredients are packed with vitamins and minerals that are good for a dog’s overall health.

Besides these healthy ingredients, Diamond Naturals Large Breed Puppy Lamb & Rice Formula contains fibers from spinach, pumpkin, and kale.

Diamond Naturals Large Breed Puppy Lamb & Rice Formula supports a dog’s gut health which is why it is enrichened with chia seeds that are known as a rich source of dietary fiber.

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Best for seniors

Diamond Naturals Senior Chicken, Egg & Oatmeal Formula

  • Price: $$
  • Energy: 3,400 kcal/kg (347 kcal/cup)
  • AAFCO Profile: Senior Dogs for maintenance
  • Grain-free: No

Diamond Naturals Senior Chicken, Egg & Oatmeal Formula is carefully designed to AAFCO Dog Food Nutrient Profiles for maintenance and as such meet all nutritional needs of senior dogs.

Crude Protein25.0% Minimum
Crude Fat11.0% Minimum
Crude Fiber3.0% Minimum
Moisture10.0% Minimum
Omega-3 Fatty Acids0.3% Minimum
Omega-6 Fatty Acids2.2%
Omega-6 To Omega-3 Ratio7.33, healthy

The first ingredient in this formula is chicken to meet the protein and fat needs of senior dogs and followed by more chicken in the form of chicken meal, cracked pearled barley, whole grain brown rice, egg, and oatmeal.

For dogs, protein is mandatory because it recovers muscle tissues something that is very important for aging dogs, and this formula in terms of protein delivers.

This powerful protein formula is enriched with superfoods such as chicken fat, kale, chia seed, and oranges.

Besides these ingredients, Diamond Naturals Senior Chicken, Egg & Oatmeal Formula contains fibers from pumpkin and spinach.

It also contains guaranteed antioxidants that will neutralize the effects of chronic inflammation in dogs.

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Best grain-free

Diamond Naturals Grain-Free Beef & Sweet Potato Formula

  • Price: $$
  • Energy: 3,580 kcal/kg (406 kcal/cup)
  • AAFCO Profile: All Life Stages, growth of large size dogs
  • Grain-free: Yes

Diamond Naturals Grain-Free Beef & Sweet Potato Formula is formulated according to AAFCO standards and it meets the AAFCO Dog Food Nutrient Profiles for All Life Stages including the growth of large-size dogs (70 lbs. or more as an adult).

Crude Protein24.0% Minimum
Crude Fat14.0% Minimum
Crude Fiber5.0% Minimum
Moisture10.0% Minimum
Omega-3 Fatty Acids0.3% Minimum
Omega-6 Fatty Acids2.4%
Omega-6 To Omega-3 Ratio8, healthy

Diamond Naturals Grain-Free Beef & Sweet Potato Formula is primarily rich in beef, only to be followed by lamb meal, sweet potatoes, peas, and lentils.

This grain-free formula is enriched with many ingredients that can be mostly found in grain-free dog food such as pea flour, canola oil, tomato pomace, and fish meal.

Next to canola oil, this formula contains salmon oil which is beneficial for the dog’s coat.

To support the health of all adult dogs, this formula is enriched with superfoods such as tomatoes, blueberries, and raspberries.

Besides these superfoods, Diamond Naturals Grain-Free Beef & Sweet Potato Formula contains dried chicory root which is an effective probiotic. It also contains a guaranteed probiotic percentage that will boost your dog’s digestive health.

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Best for overweight dogs

Diamond Naturals Light Lamb Meal & Rice Formula

  • Price: $$
  • Energy: 3,035 kcal/kg (310 kcal/cup)
  • AAFCO Profile: Adult dog, maintenance
  • Grain-free: No

Diamond Naturals Light Lamb Meal & Rice Formula is formulated according to AAFCO standards and as such it meets the nutritional levels established by the AAFCO Dog Food Nutrient Profiles for maintenance

Crude Protein18.0% Minimum
Crude Fat6.0% Minimum
Crude Fiber8.0% Minimum
Moisture10.0% Minimum
Omega-3 Fatty Acids0.25% Minimum
Omega-6 Fatty Acids1.25%
Omega-6 To Omega-3 Ratio5, healthy

Diamond Naturals Light Lamb Meal & Rice Formula contains lamb meal as the most important ingredient of this formula, only to be followed by whole grain brown rice, oatmeal, cracked pearled barley, and ground white rice.

To provide an adequate amount of fat, this formula contains chicken fat and supports dogs’ gut health by delivering fibers that can be found in kale, pumpkin, carrots, and spinach.

Diamond Naturals Light Lamb Meal & Rice Formula contains fibers from carrots, spinach, and papaya. For a richer taste, this formula contains fruit such as blueberries, oranges, and coconut.

Next to these ingredients, Diamond Naturals Light Lamb Meal & Rice Formula contains probiotics that will enhance a dog’s digestive health.

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Best for coat and skin

Diamond Naturals Skin & Coat Salmon & Potato Formula

  • Price: $$
  • Energy: 3,600 kcal/kg (408 kcal/cup)
  • AAFCO Profile: All life stages, growth of large size dogs
  • Grain-free: Yes

Diamond Naturals Skin & Coat Salmon & Potato Formula meets the nutritional levels established by the AAFCO Dog Food Nutrient Profiles for All Life Stages including the growth of large-size dogs (70 lbs. or more as an adult).

Crude Protein2.5% Minimum
Crude Fat14.0% Minimum
Crude Fiber5.5% Minimum
Moisture10.0% Minimum
Omega-3 Fatty Acids0.4% Minimum
Omega-6 Fatty Acids2.5%
Omega-6 To Omega-3 Ratio6.25, healthy

The first ingredient in this formula is salmon (great for dog’s skin and coat) followed by a fish meal, potatoes, peas, and pea flour.

Diamond Naturals Skin & Coat Salmon & Potato Formula contains enough ingredients that are rich in iron, and calcium, and high in fiber.

This formula contains fibers from kale, chia seed, pumpkin, spinach, and carrots.

Next to these powerful ingredients, Diamond Naturals Skin & Coat Salmon & Potato Formula contains a source of live, naturally occurring microorganisms that serve as friendly bacteria.

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