Introduction – Background

Diamond is a family-owned business. They source high-quality ingredients form their trusted suppliers around the world. They are also extremely dedicated to food safety conducting multiple tests to make sure that their products are safe for your pet.

Ingredients from Grain-Free Pasture-Raised Beef and Sweet Potato Formula.

Ingredients: Beef, lamb meal, sweet potatoes, peas, lentils, pea flour, canola oil (preserved with mixed tocopherols), tomato pomace, flaxseed, fish meal, natural flavor, salmon oil (source of DHA), salt, dl-methionine, choline chloride, taurine, dried chicory root, Yucca schidigera extract, tomatoes, blueberries, raspberries, 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, iron proteinate, zinc proteinate, copper proteinate, ferrous sulfate, zinc sulfate, copper sulfate, potassium iodide, thiamine mononitrate (vitamin B1), 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 B2), vitamin D supplement, folic acid.

There are three mainstream concerns with the ingredients in this list.

First, pea flour, this ingredient is used to bump up the amount of protein in the recipe. While the amount of protein may look good on the package dogs are not able to break down and use plant proteins like they can animal proteins. In addition, animal proteins provide a much better amino acid profile than any plant source of protein. 

Second, we have canola oil. This oil is not the best variety of oil. Mostly because, again, dogs cannot absorb as many nutrients from plant-based foods. So, the nutrients they could get from the canola oil will mostly pass through without really feeding your dog.

Tomato Pomace is a by-product of tomato juice, soup, and ketchup manufacturing. Basically, a cheap filler.

Guaranteed Analysis from Grain-Free Pasture-Raised Beef and Sweet Potato Formula.

Crude Protein 24.0% (min)

Crude Fat 14.0% (min)

Crude Fiber 5.0% (max)

Moisture 10.0% (max)

DHA (Docosahexaenoic Acid) 0.05% (min)

Zinc 150 mg/kg (min)

Selenium 0.35 mg/kg (min)

Vitamin E 150 IU/kg (min)

Taurine 0.12% (min)

Omega-6 Fatty Acids 2.4% (min)

Omega-3 Fatty Acids 0.3% (min)

Total Microorganisms (Lactobacillus plantarum, Bacillus subtilis, Lactobacillus acidophilus, Enterococcus faecium, Bifidobacterium animalis) Not Less Than 80,000,000 CFU/lb

This food contains about 5 different probiotics. This could be helpful if the probiotics survive the kibble processing.

The food also contains DHA (a type of omega-3 fatty acid) omega-3 and omega-6 fatty acids. These fatty acids are heat sensitive, so after processing the kibble are they really useful to your dog? If the omega fatty acids do survive, omega fatty acids are a great addition. 

The package also mentions taurine which is a necessary nutrient for heart health among other things.

This is a pretty high-carb diet that may not be right for your dog.

Flavors available

  • Chicken
  • Beef
  • Lamb
  • Fish


You can get Diamond as kibble or in cans.

Diamond offers foods to support medical conditions such as weight management, sensitive skin, and sensitive stomach, as well as, a renal formula.

They offer foods for Puppy, Adult, Senior, and Nursing or Pregnant dogs.

They offer options for small, medium, and large breeds.

You can choose from not active, moderately active, active, and overweight formulas.

There are also some grain-free options. 

Approximate Cost

For an adult dog up to 10lbs $22/month

For an adult dog between 20-60lbs $86/month

For an adult dog 100lbs or more $124/ month


This food is pretty good and might be alright for your dog. It is a high carb food. Diamond has added omega fatty acids and probiotics to the formula, however after the intense processing kibble goes through, they may not be that helpful to your dog.