Nulo Freestyle Senior Grain-Free Trout & Sweet Potato Recipe Dry Dog Food, 6-lb bag

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About This Item

Details

  • Chondroitin sulfate and L-carnitine work together to promote joint health, mobility, and muscle function, helping your aging pooch stay active and comfortable
  • Packed with 82% protein from premium animal sources, this dog food offers natural support for muscle maintenance, strength, and vitality.
  • Omega-3 and -6 fatty acids hydrate the skin and soften the coat, while guaranteed taurine levels nourish the heart.
  • Targeted prebiotic fiber and live probiotics aid in healthy digestion and bolster the immune system.
  • Free from fillers, this nutrient-dense kibble contains no grain, corn, wheat, soy, white potatoes, or tapioca ingredients.

Ingredient Information

Feeding Instructions

Learn More About Nulo From Our Team of Experts

Fuel Your Dog’s Inner Athlete

Nulo Freestyle offers a wide range of dry, wet, freeze-dried raw, treat, and topper recipes to fuel all your dog’s adventures. Freestyle formulas are grain-free, using ingredients like sweet potatoes and chickpeas as low glycemic, whole-food carbohydrate sources.

Compare The Top Ingredients

On average, 80-87% of the protein in Freestyle diets for dogs comes from animal sources, which provides your dog with the ideal amino acid profile. Compare that with the brand you're currently feeding and see the difference.

Nutritional Principles Set Nulo Apart

High Animal-Based Protein

All Nulo recipes contain high levels of animal-based protein derived from meat, poultry, and fish to support a healthy heart and lean muscles.

Low In Carbohydrates

All Nulo recipes are low in carbohydrates, using ingredients like spelt, lentils, and sweet potatoes to provide lasting energy and promote lean body mass.

Nulo Sweats The Small Stuff

Low Glycemic Ingredients

All Nulo recipes contain low glycemic ingredients, and they choose responsible sources of carbohydrates to provide stable energy levels.

Advanced Probiotics

Nulo is proud to use GanedenBC30—a natural probiotic with a protective spore casing, ensuring viability to the digestive tract—to support gut health.

About Nulo

Nulo was founded on the principle that our pets are at their best when they are fueled with the right selection of ingredients—functional, delicious, and nutritious. That’s why some of the best athletes in the world choose Nulo for their best friends.

Shop Nulo

Questions & Answers

17 Customer Questions


is this food suitable for weight loss?

Answer by 4K2D1CApr 07, 2023
Nearly any dog food can be fed when your dog needs to lose weight. Feed the amount for their ideal weight vs their current weight, reduce treats, and/or increase exercise.

Are any ingredients sourced in China?

Answer by ChewyNov 19, 2019
Nulo's meat, poultry, and fish are sourced from North America, with the exception of some of their duck (France), lamb (Australia & New Zealand), and wild-caught fish (regions can vary based on the migratory path of the wild population). Their fruits, vegetables, vitamins, and minerals are sourced in North America as well as regions throughout the world, but are always traced and required to meet strict safety and quality standards. None of Nulo’s ingredients are sourced from China, with the exception of select vitamin supplements that can only be sourced from there.

How can I find out how many cups are in the bag?

Answer by ChewyJan 01, 2021
There are approximately 4 cups in every pound of kibble.

How many mg of sodium is in 100 kcal?

Answer by ChewySep 17, 2019
Nulo FreeStyle Senior Trout kibble for dogs contains approximately 130 milligrams of sodium per 100 calories based on the typical (average) analysis of the finished product.

4.5
Rated 4.5 out of 5 stars
411 Ratings

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Digestibility

78% Positive

Joint Support

82% Positive

Nutritional Value

83% Positive

Texture

78% Positive

230 Customer Reviews



Rated 1 out of 5 stars
By Ann on Dec 2, 2025

Made my dog sick

Received a damaged bag so Chewy sent out a replacement for no charge, however made my dog sick. Diarrhea, vomiting for 4 days straight. Had to feed him rice with

Received a damaged bag so Chewy sent out a replacement for no charge, however made my dog sick. Diarrhea, vomiting for 4 days straight. Had to feed him rice with bland chicken to reset his stomach. Thank goodness, he didn’t become dehydrated that I needed to take him to the vet to be seen. . been reading the ingredients. I think the probiotic might’ve been too harsh for my senior dog sensitive stomach.


Rated 5 out of 5 stars
By Carmen on Dec 11, 2025

Senior Dog Food

I purchased this food for my older golden retriever with diabetes. I am hoping it's good fit for him, as I just switched from the food he's been on for several

I purchased this food for my older golden retriever with diabetes. I am hoping it's good fit for him, as I just switched from the food he's been on for several years. I like that this food was a cheaper option!


Rated 5 out of 5 stars
By Anna on Nov 5, 2025

always

We are always satisfied with our Chewy products!! The dogs always love it and we have no problem getting them to eat it. WE lost 2 of our babies this year and are

We are always satisfied with our Chewy products!! The dogs always love it and we have no problem getting them to eat it. WE lost 2 of our babies this year and are now looking for others. 2 in waiting for approval and I expect they will be happy pups with your products


Rated 5 out of 5 stars
By Beate on Dec 19, 2025

Great ingredients

Both dogs are loving the food. Since I have large dogs, I wish the kibble pieces were bigger, or come in different sizes to choose.

Both dogs are loving the food. Since I have large dogs, I wish the kibble pieces were bigger, or come in different sizes to choose.


Rated 3 out of 5 stars
By Catlady8 on Dec 27, 2025

Picky dog

Lola will not touch it, even with the gravy topper. Also, gravy topper not working on any food.

Lola will not touch it, even with the gravy topper. Also, gravy topper not working on any food.


Rated 5 out of 5 stars
By Peggy on Sep 28, 2025

She prefers this

In looking for a senior food and being an ingredient reader, I decided to try this for my baby girl. She would leave her previous foods but she always eats this

In looking for a senior food and being an ingredient reader, I decided to try this for my baby girl. She would leave her previous foods but she always eats this right away. I’m glad I tried this food as she prefers it over previous ones I have tried.


Rated 4 out of 5 stars
By Catherine on Aug 30, 2025

Hope kibble is same quality

I opened the bag of NULO Senior and was surprised to find that both the size and color of the kibble had changed. It's too soon to know if this causes any digestive

I opened the bag of NULO Senior and was surprised to find that both the size and color of the kibble had changed. It's too soon to know if this causes any digestive issues. Hoping that isn't the case. Anyone else notice this very obvious difference in the food?


Rated 5 out of 5 stars
By Carol on Aug 18, 2025

US sourced ingredients.

Trout and Sweet Potato - great combo for my Aussie who has a few food allegies. Jack loves the food, and we have used Nulo exclusively for 7 years. Can highly

Trout and Sweet Potato - great combo for my Aussie who has a few food allegies. Jack loves the food, and we have used Nulo exclusively for 7 years. Can highly recommend this top quality US sourced and produced food *****


Rated 1 out of 5 stars
By Rob on Jul 24, 2025

Poor execution

The one time I failed to read the reviews. As others have said the wheels do not fit at all. Spouse was able to wedge the holes more open with a screw driver and

The one time I failed to read the reviews. As others have said the wheels do not fit at all. Spouse was able to wedge the holes more open with a screw driver and then literally hammer the wheels in. Manufacturer really needs to address this flaw or Chewy should consider dropping this product due to its faultiness


Rated 5 out of 5 stars
By Frances on Oct 6, 2025

She LOVES This!

She loves this formula as a treat. Only 1/4 cup after the morning and evening meal. Dog treats are way too expensive.

She loves this formula as a treat. Only 1/4 cup after the morning and evening meal. Dog treats are way too expensive.