TRUE INSTINCT® Grain Free with Real Chicken and Sweet Potato

In our SMARTBLEND TRUE INSTINCT Grain Free Formula, real chicken is our first ingredient, along with other key ingredients and nutrients including sweet potato and glucosamine because feeding an active adult dog is a balancing act.

TRUE INSTINCT® Grain Free with Real Chicken and Sweet Potato


PURINA ONE® SMARTBLEND® TRUE INSTINCT® Grain Free Formula Nutrient-Dense Dog Food 

With so many good, wholesome ingredients out there, choosing a food can be tough. We’ve done the research and included key ingredients to create PURINA ONE SMARTBLEND TRUE INSTINCT, delivering on a dog’s natural instinct to choose nutrient-dense food. PURINA ONE TRUE INSTINCT provides 100% complete and balanced nutrition to support your active adult dog’s whole body health.

Our expert nutritionists were inspired by a dog’s natural instinct to choose nutrient-dense foods in nature. That’s why TRUE INSTINCT is formulated with real chicken as the number one ingredient, along with real sweet potato and other high quality ingredients, to provide the protein and energy active adult dogs need. Nature plus science helps provide 100% complete and balanced nutrition to support whole body health while satisfying your active adult dog’s true instinct.


Why 4 Antioxidant Sources? Together, They Make A Healthy Difference.

An active dog can benefit from an antioxidant blend. Our dual defense antioxidant blend includes Vitamins E & A, along with minerals zinc and selenium in a complete and balanced diet that works around the clock. Together, they make a healthy difference on the inside by supporting your dog’s immune system and on the outside, by supporting healthy skin and a radiant coat.

Real chicken as the #1 ingredient

Real chicken as the #1 ingredient

Made without corn wheat or soy

Made without corn wheat or soy

Highly digestible so more nutrition goes to work inside your dog

Highly digestible so more nutrition goes to work inside your dog

What’s in it


Chicken (Source of Glucosamine), Poultry by-Product Meal (Source of Glucosamine), Cassava Root Flour, Canola Meal, Pea Starch, Animal Fat Preserved with Mixed-Tocopherols, Pea Protein, Dried Egg Product, Brewers Dried Yeast, Dried Beet Pulp, Sweet Potatoes, Animal Digest, Mono and Dicalcium Phosphate, Potassium Chloride, Salt, Calcium Carbonate, Vitamin E Supplement, Choline Chloride, Zinc Sulphate, Ferrous Sulphate, Manganese Sulphate, Niacin, Vitamin A Supplement, Copper Sulphate, Calcium Pantothenate, Pyridoxine Hydrochloride, Vitamin B-12 Supplement, Thiamine Mononitrate, Riboflavin Supplement, Vitamin D-3 Supplement, Calcium Iodate, Menadione Sodium Bisulphite Complex (Source of Vitamin K Activity), Folic Acid, Biotin, Sodium Selenite. A-4172.


Crude Protein (Min) 30.0%
Crude Fat (Min) 17.0%
Crude Fibre (Max) 3.0%
Moisture (Max) 12.0%
Linoleic Acid (Min) 1.6%
Calcium (Ca) (Min) 1.0%
Phosphorus (P) (Min) 0.8%/kg
Zinc (Zn) (Min) 150 mg/kg
Selenium (Se) (Min) 0.35 mg/kg
Vitamin A (Min) 15,000 IU/kg
Vitamin E (Min) 460 IU/kg
Glucosamine (Min)* 400 ppm
Omega-6 Fatty Acids (Min)* 1.7%

*Not recognised as an essential nutrient by the AAFCO Dog Food Nutrient Profiles


Calorie Content

3896 kcal/kg

442 kcal/cup

Feeding Guide

Weight (kg) Amount to Feed
1.4 – 5.4 kg 1/3 to 1 cup
5.9 – 9.1 kg 1 to 1-1/3 cups
9.5 – 15.9 kg 1-1/3 to 2 cups
16.3 – 22.7 kg 2 to 2-1/2 cups
23.1 – 34.0 kg 2-1/2 to 3-1/3 cups
34.5 – 45.5 kg 3-1/3 to 4 cups
Over 45.5 kg 4 cups plus*

*1/3 cup for each 4.5 kg of body weight over 45.4 kg

The recommended feeding amounts indicated are based upon the average nutritional needs of an adult dog with a normal activity level (using a standard 250 ml measuring cup, which contains approximately 113 g of PURINA ONE). Factors, such as a dog’s metabolism, breed size, activity level, age and whether the dog is spayed or neutered, will affect the amount of PURINA ONE needed to maintain an ideal body condition. The pet experts at Purina have provided the feeding amounts indicated as a starting point. If you find that your dog is losing weight or becomes overweight when fed these amounts, please adjust accordingly. To help your dog maintain an ideal body condition, monitor your dog’s weight on a regular basis, making sure that his ribs are easily felt and the waist is visible when viewed from above. Maintaining an ideal body condition can impact your dog’s lifelong health.


It’s Not For All Dogs

PURINA ONE TRUE INSTINCT formula is specifically formulated for adult dogs. If you have a puppy, or a pregnant or nursing dog, feed PURINA ONE SMARTBLEND Healthy Puppy Formula.


May Be Served Dry or Moistened

PURINA ONE may be fed dry or mixed with water. If mixed, we suggest one part liquid to four parts PURINA ONE.


Making the Switch to PURINA ONE

Although you’ll be anxious to see the difference PURINA ONE can make in your dog, please allow 7–10 days to ease the transition from his current food. Each day, simply feed a little less of the previous food and a little more PURINA ONE until you’re feeding PURINA ONE exclusively. This gradual transition will help avoid dietary upsets.


No Supplements Necessary

PURINA ONE provides 100% complete and balanced nutrition. There is no need to add vitamins, minerals or other supplements, unless specifically directed by a veterinarian.


Fresh Water, Proper Diet & Veterinary Care

Be sure to provide fresh water in a clean container for your dog daily. Proper diet, exercise and veterinary care are the best ways to keep your dog healthy. If your dog hasn’t had a check-up in the past year, please make an appointment today.

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  • 5/5

    Ami Donnelly June 01, 2019

    Grain free review

    Been feeding this to my eleven year old English Springer Spaniel for the past few days and let’s just say he absolutely loves it. It is by far the best food I have given him. Before trying him on True Instinct grain free he was having trouble with his anal glands and was creating smells all the time. Me and my mum took him to the vet hundreds of times about it and were told to put him on a grain free diet. We had been feeding him lots of other grain free kibbles but the only ones so far that have helped him were the purina grain free and two other pet shops brands (I think the other two were nutro and nutrience). I also think that this particular one has helped to fill him up when he eats it at his meal times (we feed him 2 times a day as the vet told us that feeding him twice a day would help him stop being so hungry too). So therefore because I have been feeding him this brand his anal gland problem is not as bad as it used to be and he’s not been sitting at our feet waiting for a piece of our food at dinner time. And because my dog loves sweet potato this is also been giving him healthy deposits when he is in the garden or when I take him out for his walks. Hopefully this product continues to help him and will definitely be purchasing this one again. Also, is there any other flavours in the grain free section so that I can try him on other flavours too please.

    Many thanks.

    P.S: I found out your product through our local the warehouse NZ store in Mt Wellington, Auckland