Blue Buffalo Natural Veterinary Diet K+M Kidney + Mobility Support Grain-Free Dry Cat Food, 7-lb bag

By Blue Buffalo Natural Veterinary Diet
Rated 4.3864 out of 5 stars
Veterinary Diet Item
$51.98Chewy Price
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Rated 4.2157 out of 5 stars
$14.99Chewy Price

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About This Item


  • Kidney support canned cat 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 cat.
  • Enhanced with DHA, glucosamine and chondroitin to support your pal’s healthy joint function and overall mobility.
  • Made without the grains many pet parents choose to avoid, making this holistic formula great for cats 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 cats 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.

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Top IngredientsDeboned Chicken, Peas, Pea Starch...Brewers Rice, Hydrolyzed Chicken Liver, Rice Protein Concentrate...Deboned Chicken, Chicken Meal, Tapioca Starch...Water, Corn Starch, Egg Product...Deboned Chicken, Chicken Meal, Pea Protein...
Special DietGrain-Free, No Corn No Wheat No Soy, Veterinary Diet, NaturalVeterinary Diet, Pea-Free, Hydrolyzed Protein, With GrainGrain-Free, No Corn No Wheat No Soy, Sensitive Digestion...Veterinary Diet, Weight Control, Pea-Free, With GrainGrain-Free, No Corn No Wheat No Soy, Veterinary Diet...
Food FlavorPoultry, ChickenPoultry, ChickenPoultry, ChickenPoultry, ChickenPoultry, Chicken
Health FeatureHip & Joint Support, Kidney CareSkin & Coat HealthDigestive HealthWeight ManagementUrinary Tract Health, Weight Management
Food FormDry FoodDry FoodDry FoodDry FoodDry Food

Questions & Answers

9 Customer Questions

what is the dry matter % of phosphorous?
Answer by ChewyDec 18, 2019
This food has a phosphorus content of 0.7% on an as-fed basis, and 0.769% on a dry matter basis.

what are the levels of carbohydrates, calcium, protein, and magnesium on a dry matter basis?
Answer by ChewyJan 09, 2020
This variety contains approximately 39% Carbohydrate content on an as-fed basis (42.8% on a dry matter basis), 0.5-0.9% Calcium content on an as-fed basis (0.54-0.98% on a dry matter basis), 26% Protein content on an as-fed basis (28.5% on a dry matter basis) and 0.12% Magnesium content on an as-fed basis (0.13% on a dry matter basis).

How is this mobility support?
Answer by ChewyAug 26, 2020
This grain-free formula has controlled levels of minerals, such as phosphorus and sodium to help support kidney health, plus vital nutrients such as DHA, glucosamine, and chondroitin to support your cat’s healthy joint function and overall mobility. We suggest running this diet by your veterinarian since we require authorization before dispensing it.

Does Blue Buffalo Natural Veterinary Diet K+M Kidney + Mobility Support Grain-Free Dry Cat Food come in 2lbs size?
Answer by ChewyMay 14, 2021
This food only comes in a 7 pound bag.

ReviewsWrite a Review

Rated 4.3864 out of 5 stars
176 Ratings
Would recommend to a friend

174 Customer Reviews

Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.
Rated 5 out of 5 stars
By Courtney on Sep 18, 2023

Cheesecake Approved!

Started our 8 year old adopted girl on this food since we caught early kidney disease in her. Since we’ve only had her for a year it’s been hard to figure out what she likes and what her temperament is like when she’s feeling good and since switching her to this food she’s like a kitten again! Thanks blue Buffalo and chewy!

Rated 5 out of 5 stars
By AshNoel86 on Aug 1, 2023

Geriatric Cat Loves It!

Our 19 year old Persian loves this food and we’ve seen such an improvement in him since we started it. We originally were feeding him Royal Cabin’s Kidney food but it was out of stock everywhere so I tried this food instead. He went from hiding under the bed most of the day to being around us all the time again. He moves so much better and hardly stumbles at all which was frequent before. He is also using a ramp to get on the bed which he never did before. We had his kidney levels tested and in a year they’ve barely changed. I absolutely recommend this food!

Rated 2 out of 5 stars
By Tootsie on Sep 28, 2023

Not so much

It can be challenging to find the right food for a senior cat with some health issues. She liked some bites of this first couple days, but since then it just sits and has not been palatable for her.

Rated 3 out of 5 stars
By GangofThree on Jun 27, 2023

One CKD cat eats this but not the intended cat

I bought this because our normal CKD prescriptn kibble was unavailable. The cat I primarily got it for is 20 yrs old. He threw this up consistently over 2 days. I was lucky to get a flavor variation on his old kibble brand that was in stock and which he now loves as much as the unavailable flavor. I had had high hopes for Blue Buffalo as this food is not made w/byproducts, but it just doesn't work for him. My 14 yr old has CKD now and she is eating this well. However, she doesn't like the darker mobility kibbles as much as the lighter colored kidney kibble. Good thing the mobility kibble is in the minority of this mix. So much for a more natural kibble food. If I could, I would give this food a 2.5. When you're cat is age 20 and thin already, you don't want him vomiting. I know glucosamine chondroitin can cause some cats GI issues, but he used to take Cosequin w no GI problems, so I don't know what the problem ingredient is for him.

Rated 1 out of 5 stars
By BBJ on Aug 1, 2023

Our cat will not eat it

Currently she eats blue buffalo chicken dry food and we thought this would be a perfect fit since she now needs a kidney food. We mixed it slowly with her current food, but she refuses to eat it. It doesn't help that the kibble of the kidney food is slightly bigger so she just eats around it. We are very disappointed, we hoped this would work.

Rated 5 out of 5 stars
By JC on Jun 11, 2023

Saved my cats life

This food quite literally saved my cats life. For reasons we still don't understand, my 10 year old cat went into kidney failure. She did NOT have kidney disease and three weeks before, she had bloodwork where her kidney levels were normal. After four days in the hospital, she was stable enough to take home. For almost a week, she ate barely anything. I was trying to syringe feed her to get her some nutrients. It was so bad that I made an appointment to put her down on a Sunday. The Saturday before, this food arrived in the mail from Chewy. My cat DEVOURED it. She ate about 1/3 of a cup. I canceled the appointment to euthanize her. The next day, she continued eating well and without any appetite stimulants. She seeks out this food and is more than happy to eat it. She will go for bloodwork soon to see how her levels are doing, but I am so happy that we found a food that is safe for her to eat and that she wants to eat. I was not ready to say goodbye to my girl.

Rated 5 out of 5 stars
By KarenW on Jul 23, 2023

He LIKES it!!!!

Spike is 14 now. His recent labwork shows a decline in kidney function so we need a special diet. We tried the Blue Buffalo veterinary diet for kidney support after he turned his nose up at two other options. He likes this dry food and is now eating the canned version too!

Rated 1 out of 5 stars
By Hiker on Jun 7, 2023

Blue Buffalo KM

We wanted to try this food for our CKD kitty because it looked like a quality product, but it does not seem to agree with him. We fed about a 1/4 cup a day with his regular dry for several days. Then he started going to the litter pan several times in about a 1/2 hr before urinating. Which he has never done before. So, we stopped feeding the BB KM. Then we waited a week or two before trying the food again. After a couple of days on it, he started going to the litter pan multiple times, again. After stopping it, he returned to his normal potty habits. It may be a good food for other kitties, but does not work for our boy.

Rated 1 out of 5 stars
By Allen on Aug 23, 2023

Cat doesn't like it

Prescription kidney care cat food has reduced protein, and apparently cats like the taste of protein because this is just one on a long list of brands my cat won't eat.

Rated 5 out of 5 stars
By Chester on Jun 16, 2023

New food

Great food. We tried a couple other different brands when our previous kitty had to go on a kidney diet. Any time she threw up on those other ones-even vet recommended ones, carpet would end up with a stain. This time we decided to spend a bit of extra money to go better quality. Not only was it a super easy transition, we don't have any worse messes when tummies get upset.