Image of True Instinct Formula with Real Salmon & Tuna Dog Food

True Instinct Formula with Real Salmon & Tuna Dog Food

Product Overview

No matter how far science advances us, we always look to nature to inspire us.

Inspired by a dog's instinct to choose nutrient-dense foods in nature, Purina ONE® True Instinct was created with 30% protein, including real salmon as the #1 ingredient, with a blend of real tuna and other ingredients to provide the protein, energy and other nutrients active adult dogs need.

  • 30% protein, real salmon is the #1 ingredient with real tuna
  • No poultry by-product meal, artificial flavors or preservatives
  • Natural sources of glucosamine to help support healthy joints
  • Omega-6 fatty acids, vitamins and minerals help give your dog a radiant coat and healthy skin
  • Omega-3 fatty acids help support a healthy immune system
Ingredients & Nutrition

Salmon (Source of Glucosamine), Corn Gluten Meal, Soy Flour, Rice Flour, Beef Fat Naturally Preserved with Mixed-Tocopherols, Whole Grain Wheat, Chicken Meal (Source of Glucosamine), Soy Flakes, Whole Grain Corn, Tuna, Glycerin, Corn Germ Meal, Oat Meal, Liver Flavour, Calcium Carbonate, Soybean Oil, Mono and Dicalcium Phosphate, Caramel Colour, Salt, Fish Oil, Vitamins [Vitamin E Supplement, Niacin (Vitamin B-3), Vitamin A Supplement, Calcium Pantothenate (Vitamin B-5), Thiamine Mononitrate (Vitamin B-1), Vitamin B-12 Supplement, Riboflavin Supplement (Vitamin B-2), Pyridoxine Hydrochloride (Vitamin B-6), Folic Acid (Vitamin B-9), Menadione Sodium Bisulfite Complex (Vitamin K), Vitamin D-3 Supplement, Biotin (Vitamin B-7)], Potassium Chloride, Minerals [Zinc Sulphate, Ferrous Sulphate, Manganese Sulphate, Copper Sulphate, Calcium Iodate, Sodium Selenite], Sulphur, Choline Chloride. B-4173-C.

Nestlé Purina PetCare, 2500 Royal Windsor Drive, Mississauga, Ontario L5J 1K8
Nestlé Purina PetCare Company, St. Louis, MO 63164 USA

Animal feeding tests using AAFCO procedures substantiate that Purina ONE SmartBlend True Instinct With Real Salmon & Tuna provides complete and balanced nutrition for maintenance of adult dogs.

AAFCO is a voluntary state membership association that develops standards and regulations to ensure consumer protection and safeguard the health of animals and humans.

Guaranteed Analysis

Crude Protein (Min)


Crude Fat (Min)


Crude Fiber (Max)


Moisture (Max)


Linoleic Acid (MIN)


Calcium (Ca) (MIN)


Phosphorus (P) (MIN)


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)*

350 ppm

Omega-3 Fatty Acids (MIN)*


Omega-6 Fatty Acids (MIN)*


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

Feeding Guidelines

The recommended feeding amounts indicated are based upon the average nutritional needs of an adult dog with a normal activity level (using a standard 8 oz/250 ml measuring cup, which contains approximately 92 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.

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.

Purina ONE may be fed dry or mixed with water. If mixed, we suggest one part liquid to four parts 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 your dog’s 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.

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

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.

3717 kcal/kg
343 kcal/cup

Weight (lbs./kg)

Amount to Feed

3–12 lbs.
(1.4–5.4 kg)

1/2 to 1-1/4 cups
(46–115 g) 

13–20 lbs.
(5.9–9.1 kg)

1-1/4 to 1-3/4 cups
(115–161 g) 

21–35 lbs.
(9.5–15.9 kg)

1-3/4 to 2-2/3 cups
(161–246 g) 

36–50 lbs.
(16.3–22.7 kg)

2-2/3 to 3-1/4 cups
(246–299 g) 

51–75 lbs.
(23.1–34.0 kg)

3-1/4 to 4-1/3 cups
(299–399 g)

76–100 lbs.
(34.5–45.4 kg)

4-1/3 to 5-1/4 cups
(399–484 g) 

Over 100 lbs.
(Over 45.4 kg)

5-1/4 cups (484 g) plus*

* 1/3 cup (31 g) for each 10 lbs. (4.5 kg) of body weight over 100 lbs. (45.4 kg)

  • Overall Rating
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True Instinct Formula with Real Salmon & Tuna Dog Food
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True Instinct Formula with Real Salmon & Tuna Dog Food
  • 5/5
  • Sarah74
  • May 15, 2016
Loyal pet owner from Ottawa

Dogs love it

My dogs both love this, and the other varieties as well! (This review was collected as part of a promotion.)

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True Instinct Formula with Real Salmon & Tuna Dog Food
  • 5/5
  • Mommacrystal
  • November 11, 2016
Loyal pet owner from

Free Sample, LOVE IT!!!

I received a free sample of Purina One from Smiley360. My dogs love it! Their coats look absolutely gorgeous and they love the flavor! [This review was collected as part of a promotion.]

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True Instinct Formula with Real Salmon & Tuna Dog Food
  • 5/5
  • bethlovesduke
  • June 14, 2017
Loyal pet owner from Newcomerstown, OH 43832, USA

Older dog, Got some new life.........

My Lab is 11 and he is crippled and is unable to use his front paw and has arthritis. He was to the point were he could barley go outside to go potty. He could only take a few steps and the we would put him on his bed and drag him back inside. I noticed he was eating dirt. I looked it up and he needed more nutrients . So we bought him Purina One Salmon and Tuna nutrient dense formula. It has been 25 days
With some doggy pain killer and the change of food he has made a complete turn around. After 2 weeks of eating the new food he got stronger, from all the protein in his diet. His muscles got stronger and he started walking again, he started to adventure again and is able to jump into the UTV. The food also has helped with the doggy stank. His eyes are bright and his fur is silky. He is completely off doggy pain killers and continues to get stronger every day. He walks,jumps and is able to enjoy is life again. I am the person that loves my dog but thought that dog food was pretty much the same. I was sssssoooo wrong. For the little bit of extra money I get to spend more time with my beloved doggy.

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True Instinct Formula with Real Salmon & Tuna Dog Food
  • 5/5
  • Jody47
  • June 30, 2016
Loyal pet owner from Illinois

My dog has never felt better!

My rescue dachshund Riley is 12 years old. He had always had problems with vomiting with other dog foods - only once or twice a month but too often for me to be comfortable. I was advised by a salesman at a local pet food store that his dog had digestive issues too and that salmon or lamb seemed to work best for him. I tried the salmon formula and Riley loves the soft chews (usually picks them out first) but then eats all of it and he's picky. He has not vomited once since starting him on the salmon formula and I am so grateful and he gives it a two woof thanks! My only concern is that it is hard to find locally, especially in the smaller (7 lb) bag.

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True Instinct Formula with Real Salmon & Tuna Dog Food
  • 5/5
  • BearPaw
  • February 4, 2017
Loyal pet owner from Whitney Point, NY 13862, USA

My dogs love it!

Not only do they start running around like crazy as soon as the dog food bags get brought inside, but they down it even faster. They love the chunks of fish and meat and their coats have become more shiny. With having high drive dogs, this is just the dog food for them! I recommend it regularly!

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True Instinct Formula with Real Salmon & Tuna Dog Food
  • 5/5
  • Rabbit
  • December 4, 2017
Loyal pet owner from Windsor, Nova Scotia, Canada

Pup-approved x4 !!!!

All four of my fur babies absolutely love Purina’s Real Salmon & Tuna smartblend dog food ! They are happy, healthy and full of life. Thank you Purina ! (This review was collected as part of a promotion.)

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True Instinct Formula with Real Salmon & Tuna Dog Food
  • 5/5
  • Rhonda686
  • March 15, 2018
Loyal pet owner from

Smore loves Purina one smartblend!

In our family we pride ourselves on taking care of one another having said that our pets are no different. Purina one smartblend true instinct with real salmon and tuna is now our pitbulls favorite. Love the fact that this dog food has more potein in it for growing dogs but is also great for a much older dog as well. Also like the fact that it is not just the standard beef or chicken flavor dog food. I highly recommend giving this dog food a try with your pet today! Your pets tail will be wagging the moment they hear the sound of the bag being opened! (This review was collected as part of a promotion.)

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True Instinct Formula with Real Salmon & Tuna Dog Food
  • 5/5
  • Thunder23
  • April 19, 2016
Loyal pet owner from Elk

Dogs love love love the Salmon and Tuna

I have been feeding my Siberian Husky's the True instinct Salmon and Tuna for a while and they LOVE IT!!! Even my 6 week old puppies wanna eat it. They ignore there food and try to eat there parents food. (parents food is set up high so pups can't get it) But i have seen a lot of good results. My huskies don't need to eat a lot of it, there coats are very shinny and soft, there more active, and i don't have to buy any multivitamins for those zinc deficiency issues. It seems that the food helps with the zinc deficiency. Every time i buy a new bag of this my dogs get very excited and sometimes try to open the bag. This is definitely worth it!!!! Yes its a little spendy but worth it!!! One bag last me almost 2 months with my two huskys and my male eats a lot. It used to be that a bag of different dog food lasted a month. I love this product and so do my huskys.

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True Instinct Formula with Real Salmon & Tuna Dog Food
  • 5/5
  • Django
  • September 2, 2016
Loyal pet owner from Lamsing

Absomutely incredible difference

We adopted Django from humane society about 5 weeks ago. Thet had him on Science diet and he was way underweight and his coat was bland and shed alot. Within a week if switching him to Purina One he gained weight and now has a beautiful shiney coat. Bonus is he lives rhe taste!

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True Instinct Formula with Real Salmon & Tuna Dog Food
  • 5/5
  • Bill221
  • March 15, 2018
Loyal pet owner from

Excellent product

My dog is a Maltese and she lives the salmon and tuna, she makes such a mess eating it as she doesn't want any of us to get close to her food it is hilarious, much appreciated will buy it again nad from now on (This review was collected as part of a promotion.)

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