Blue Buffalo Natural Veterinary Diet KS Kidney Support Grain-Free Dry Dog Food, 6-lb bag

By Blue Buffalo Natural Veterinary Diet
Rated 4.3949 out of 5 stars
Veterinary Diet Item
$34.98Chewy Price
No Longer Available
This item may be discontinued. We're not sure when it will be available again.

This item requires vet authorization.

About This Item


  • Kidney support dry dog food with controlled levels of protein to help manage your furry pal’s kidney workload.
  • Veterinary diet that also has controlled levels of phosphorus and sodium to help support kidney health for a happy and thriving dog.
  • Enhanced with antioxidants, L-carnitine and omega 3 fatty acids for your dog’s overall health and body condition.
  • Made without the grains many pet parents choose to avoid, making this holistic formula great for doggies with sensitive tummies.
  • Prescription-only food made with the finest ingredients available that have both beneficial nutrition and a taste your furry best friend will love.

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Nutritional Information

Feeding Instructions


Play Video: Learn More About Blue Buffalo Natural Veterinary Diet From Our Team of Experts
Learn More About Blue Buffalo Natural Veterinary Diet From Our Team of Experts

About BLUE Natural Veterinary Diet®

A Natural Therapeutic Diet

Formulated by veterinarians and animal nutritionists, BLUE Natural Veterinary Diet products are designed to nutritionally help manage certain conditions for dogs and cats. BLUE Natural Veterinary Diet formulas contain the same kind of premium-quality ingredients that are synonymous with Blue Buffalo.

The True BLUE Promise

BLUE is formulated with only the finest natural ingredients:

• Always features protein-rich real meat

• NO chicken (or poultry) by-product meals

• NO corn, wheat or soy

A Holistic Approach to Nutritional Therapy


Because the efficacy of nutritional therapy is top priority, BLUE Buffalo employs a team of PhD animal nutritionists, food scientists and veterinarians to ensure each BLUE Natural Veterinary Diet performs exactly as it should.


At BLUE Buffalo, product safety and quality are our #1 priority. We care deeply about the safety of our furry family members. We are proud of our best-in-class product quality, and have strict controls in place to make sure that our ingredients meet the highest quality standards.


BLUE Natural Veterinary Diet is made with the finest natural ingredients just like all our BLUE foods. It always starts with real meat and contains no chicken/poultry by-products, corn, wheat or soy and artificial preservatives, or flavors. It's a wholesome, natural veterinary diet that has both beneficial nutrition and a taste dogs love.

Exclusive LifeSource Bits®

All BLUE Natural Veterinary Diet recipes feature a precise blend of vitamins, minerals and antioxidants selected by holistic veterinarians and animal nutritionists to help promote immune system health, fulfill life stage requirements and support a healthy oxidative balance.

About BLUE Buffalo

Blue Buffalo began with unconditional love and some furry inspiration from a large breed Airedale, Blue. When Blue's family started a pet food company, their vision was clear. They wanted every pet parent to be able to feed their pet with the same care they would feed family. So they created the #1 natural pet specialty food to help furry family members live happy, healthy lives. Of course, they named it after Blue.

Questions & Answers

12 Customer Questions

What is the size of the kibble dry food for my yorkie?
Answer by ChewyFeb 13, 2019
The kibble is circular and approximately 1/4 inch in diameter. It can be given to small breeds.

Where are the ingredients sourced from? Is this made in USA?
Answer by ChewySep 27, 2019
All Blue Buffalo products are manufactured in the United States. Many of their ingredients, such as most grains and meats, like chicken, beef and turkey come from the United States. Their lamb and venison can be free range from the United States or New Zealand, their rabbit is sourced from Europe, and trout comes from the United States or Canada. Where possible Blue's suppliers are instructed to source their ingredients from the United States. Where the ingredients are not readily available in the Unites States, such as many vitamins and minerals, their suppliers will only work with reliable foreign companies, and subject all ingredients to rigorous quality testing. None of the ingredients are sourced from China.

Will this food put excess weight on my small breed dog. Can't afford extra pounds on a 10 lb dog...thanks
Answer by ChewyOct 12, 2018
When feeding the appropriate amounts, the food should not result in weight gain.

How much protein is in this food and how much sodium? Thank you.
Answer by ChewyMar 28, 2022
This recipe has a minimum protein content of 14% and a maximum sodium content of 0.25%.

ReviewsWrite a Review

Rated 4.3949 out of 5 stars
157 Ratings
Would recommend to a friend

157 Customer Reviews

Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.
Rated 4 out of 5 stars
By jakeini on Nov 2, 2022

KS food for dogs

While my dog isn't crazy about this brand of Kidney food at least she will eat it with a little help. All the vets I have spoken with say its difficult for the animals to eat, but we do want them to eat! I will be buying more. It doesn't smell like some of the others I have tried.

Rated 1 out of 5 stars
By Bandit on Oct 3, 2022

Really bad for my guy!

My boy is almost 15 years old. Has kidney failure. Before this I was feeding him a different dog food. He started having skin and ear problems. Signs of allergy. So I switched him over to blue. Week and half into it. He started drinking a lot, peeing in the house.waking up in the middle of the night to drink, and Vomiting. He's so sick. I'm going to switch him again.. Poor guy. Watch out for that if you do try to give this dog food.

Rated 5 out of 5 stars
By Nancy on Jan 19, 2023

Blue Buffalo Kidney care food

BB Kidney care is safe. The lady from June 26th. Is over reacting.

Rated 5 out of 5 stars
By Levi on Sep 29, 2022

Love this Kidney Care Dog Food

This is a new dog food for Levi who has been eating Hills Prescription Kidney Care dog food for a couple of years and mostly waits to eat it until he is so hungry he has not choice! This Blue Buffalo was scarfed up immediately!

Rated 5 out of 5 stars
By Candace on Jul 24, 2022

Great RX food

Our veterinarian recommended that we switch our dog to a food that will support him because he is in the beginning stages of kidney failure. We slowly transitioned him from Purina to this one. He had no issues switching and his blood work Ian’s urine came back slightly better than it was before we changed his food. I’ll continue to buy it.

Rated 2 out of 5 stars
By ChiMom on Jul 2, 2022

Had high hopes

But, my dog will not eat this food. Based on the reviews, I really had high hopes for this food. I know it is difficult to get any dog to eat Kidney Support diets in general; all of the "good stuff" has been reduced and they're not happy about it. But, since my chihuahua was already eating Blue Buffalo Senior Grain Free food, I hoped I could transition him. He literally went on a hunger strike and vet recommended I put him back on his Senior food for awhile.

Rated 5 out of 5 stars
By Peanut on Jul 14, 2022

Our Picky Dog Likes This Food

Our elderly dog is a pretty picky dog. There's lots of food that he refuses to eat. He has enjoyed the Blue Buffalo KS Kidney Support Grain Free Dry Dog Food. Sometimes he gets tired of his food so we have to make changes occasionally.

Rated 2 out of 5 stars
By Badingredient on Jun 26, 2022

Contains cellulose fiber (wood pulp)

I had high hopes for this product. Lower protein and mineral content for my little guy who has CKD. Got it in and he loved it. No stomach issues (most other KS foods use wheat and he has wheat allergies). Read the ingredients closer and saw that is contains cellulose fiber (wood pulp) as a filler. Took him off it right away. I would not put wood pulp in my food, or in the food that I feed to friends or family. Why would I want it in my dogs food? Started him on a home made diet and he is doing very well on the diet that contains veggies, fruit, salmon and buckwheat flour for the binder.

Rated 5 out of 5 stars
By Pauley on Jul 12, 2022

This is tasty too! I like it, I really like it.

I've been eating Blue Wilderness all of my 12 years on earth and all of a sudden my Vet said I need a kidney support diet. So glad Mom & dad picked this out for me. It's really tasty and I can't wait for my next meal!

Rated 5 out of 5 stars
By Chambiker on May 9, 2022

Hey Mikey, he likes it!

My dog was recently diagnosed with renal disease. The vet gave me an 8 oz bag of kibble from another name brand. I was heartsick that my dog wouldn't eat it. Nor would he eat a couple of different canned renal diet foods. I was afraid his disease would cut his life even shorter by not eating his special diet food. I contacted Chewy Bout trial nags or their return policy. I was pleased to hear if my dog wouldnt eat it, thebunused portion could be returned. I decided to try the Blue Buffalo renal diet and my very picky dog liked it. He now seems to be feeling better and I know that he will have more time with me by eating what his body needs.