Diamond Naturals Indoor Formula Dry Cat Food Review

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Our Recommendation

Diamond Naturals Indoor Formula Dry Cat Food is made especially for indoor cats. The two main ingredients are chicken meal and cage-free chicken which provides ample protein for your furry friend. You will also find probiotics, vitamins, minerals, omega fatty acids, and antioxidants to help with skin and coat, muscle development, digestion and your cat’s overall health.

This formula does not have any corn, wheat, artificial flavors or colors, fillers or preservatives. It is made in the USA with sustainable ingredients and uses advanced safety protocols to make sure that the food they produce is of great quality.


Chicken Meal, Chicken, Peas, Ground White Rice, Cracked Pearled Barley, Powdered Cellulose, Chicken Fat (Preserved With Mixed Tocopherols), Natural Flavor, Flaxseed, Sodium Bisulfate, Choline Chloride, Dl-Methionine, Taurine, Dried Chicory Root, L-Carnitine, Kale, Chia Seed, Pumpkin, Blueberries, Oranges, Quinoa, Dried Kelp, Coconut, Spinach, Carrots, Papaya, Yucca Schidigera Extract, 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, Zinc Proteinate, Vitamin E Supplement, Niacin, Manganese Proteinate, Copper Proteinate, Zinc Sulfate, Manganese Sulfate, Copper Sulfate, Thiamine Mononitrate (Vitamin B1), Vitamin A Supplement, Biotin, Potassium Iodide, Calcium Pantothenate, Riboflavin (Vitamin B2), Pyridoxine Hydrochloride (Vitamin B6), Vitamin B12 Supplement, Manganous Oxide, Sodium Selenite, Vitamin D Supplement, Folic Acid

Nutritional Analysis

Pet food ingredients, nutritional values, and the way they are labeled for consumers are monitored by several organizations in the United States including the Food and Drug Administration (FDA) and the NGO, Association of American Feed Control Officials (AAFCO).

Guaranteed Analysis


32.0% min


14.0% min


8.0% max


10.0% max


150 mg/kg min


0.3 mg/kg min


150 IU/kg min


0.1% min


2.4% min


0.4% min


1,000,000 CFU/lb min

Caloric Content

3,350 kcal/kg, 313 kcal/cup

Feeding Amounts


Recommended Daily Feeding (cups)

3-5 LBS

1/3 - 1/2

5-10 LBS

1/2 - 3/4

10-15 LBS

3/4 - 1

15-20 LBS

1 - 1 1/4

The above is the manufacturer’s recommended feeding guidelines. However, this may not work for your cat. Each cat is unique therefore it is important to take into account your cat’s age, wet food intake, and activity level before deciding on a feeding schedule. Always discuss with your veterinarian if you have any concerns about switching your cat into a new variety of food and follow the transition instructions below. Make sure to provide access to clean, fresh water at all times.

Transition Instructions

It is best to make a slow transition from the existing food to a new food, ideally over 5-10 days. Start by adding 25% of the new food to 75% of the old food and feed that for the first three days. Introduce 50-50 of the old and new food for the next few days. Toward the end of the 10-day cycle, add 75% of the new food to 25% of the old food. Make sure to keep an extra eye on your cat through this transition to see if there are any changes in the eating habits or if they start vomiting, having diarrhea or feeling constipated. If any problems start to occur, stop the transition and consult your vet immediately.

The Bottom Line

Diamond Naturals Indoor Formula Dry Cat Food is a good quality product which focuses on the core needs of your indoor cat’s diet. The only ingredient that doesn’t carry much nutritional value is ground white rice which is listed as the fourth ingredient on the list. Although the rest of the ingredient list consists of great vitamins,minerals, probiotics, antioxidants as well as fruits, vegetables and healthy grains, it would be ideal if the white rice was swapped in favour of a healthier grain.

Nevertheless, the fact that they do not use any corn, wheat, artificial flavours or colours, preservatives or fillers is a great plus. This formula is sold at an affordable price point which helps anyone on a budget.

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