BLUE BUFFALO NATURAL VETERINARY DIET K+M Kidney + Mobility Support Grain-Free Dry Cat Food, 7-lb bag -

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 4.4873 out of 5 stars
Veterinary Diet Item
$51.98Chewy Price
$49.38Autoship 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.

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 4.4873 out of 5 stars
158 Ratings
Would recommend to a friend

158 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 Loulou17 on May 14, 2023

Cats like it the best

This is the only dry prescription food (out of three brands) that my 2 cats with kidney issues will eat without taking a sniff, then looking at me with disappointment, and then stalking away. In honesty, though, they'd much prefer regular kibble, not gonna lie, but this is better for them, and will be purchased again.

Rated 5 out of 5 stars
By CATMOMMY on Mar 29, 2023


I was forced to make quick changes due to the horrifying news of the onset of CKD. I don't like dry kibbles, and I have been feeding her the highest quality wet organic food most of her life, but I am familiar with Blue Buffalo kibbles from prior use. I left the kibbles thing due to my kitty getting a UTI and getting a wee tiny bit too fat & still other reasons. I'm back! My kitty is so crazy about this food, she thinks it's *dessert* & vocally lets me know it LOL. I am guarded as to the amount I feed her because it's dry, but she's totally crazy about it. I pick out more of the cold processed formulated life bits & she eats *all* of it!--immediately or almost immediately! I also give her the wet version & very few other low phosphorous foods. This is her top favorite. Good ingredients without the gums, too, or dangerous ingredients--that's the positive side. The flip side is that it's dry food & processed for dry. The life bits are a sure winner! I'm SO grateful for them. I wouldn't let this big bag get stale. You can always buy another bag after a while & donate or give the rest to the raccoons.

Rated 4 out of 5 stars
By Jesseca on Apr 19, 2023

So Far, He's Eating It

So far my cat is eating the food and seems to like it. The only issue I've noticed is he spits out the darker colored ones. No idea if that's going to be a problem. I can't tell if it's helping with his kidneys or arthritis yet, but I have noticed he's still losing weight which can't be a good sign. I'll know more when we see the vet, but at least he's eating most of the food.

Rated 5 out of 5 stars
By JenS on May 15, 2023

Great cat food

I was worried that my 15 yr old cat with kidney issues would not like the taste of this cat food. She loves it!!! She gobbles it up. Blue Buffalo is a great brand!

Rated 5 out of 5 stars
By TAFC on Feb 25, 2023

Good Stuff!

My cat has eaten Blue Buffalo for most of her life and has seemingly liked it. I was hesitant about putting her on a prescription diet, but it is what she needs. I felt good about this diet because it is the same brand, and I thought that the taste must be close. It must have been! My Tika took right to it! She also had no ill effects from the change. In fact, we made the change in record time.

Rated 4 out of 5 stars
By Willy on Mar 19, 2023

Eating, finally!

My senior cat was put on the K-M diet by his vet because of his medical condition. He had been eating commercial cat food his entire life, and the change was very difficult for him. However, hunger took over, and now he is eating & seems to have acclimated to the new diet. Let's hope it works!

Rated 1 out of 5 stars
By Elizabeth on Mar 4, 2023

change in formula made my cat sick

My cat was eating this food for about two years and it improved her kidney levels in blood tests. However, my vet confirmed that Blue Buffalo reformulated this food. I suspected that was the case because this new bag is making my cat sick. She does not like it and she has been throwing up daily. I was not informed of the reformulation ahead of time. My poor kitty!

Rated 5 out of 5 stars
By Stacey on Feb 7, 2023

This food is a winner!

My cat was diagnosed with early kidney disease in December of 2020 and I started her on this food at that time. Her mobility has definitely improved (she turns 13 this month) and her last bloodwork results show that she is back within normal kidney ranges! BBKM dry is the only food she eats, she will not touch any kind of wet food or treats or cooked or raw meat, poultry, or fish. Every cat is different and results may vary, but I am extremely grateful to Blue Buffalo for bringing my baby back to good health!

Rated 5 out of 5 stars
By Hoobie on Apr 13, 2023

Finicky cat enjoying

I really struggle to get my cat to eat what is good for her and this is one of the few products she will actually eat!

Rated 5 out of 5 stars
By Jennifer on Feb 15, 2023

Two Cat Household

My one cat has to be on this food but because I have two cats, they both eat it and love it. Vet said it is fine and actually healthier and less stressful on kidneys than other cat food.