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

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About This Item

Details

  • This Blue Buffalo dry cat food is made with real chicken as the first ingredient.
  • Veterinary-prescribed formula is designed to help with kidney health and mobility, plus it’s packed with nutrition and flavor.
  • This dry cat food has controlled protein levels and restricted mineral levels to support kidney function.
  • This recipe contains DHA, glucosamine, and chondroitin to promote joint health and mobility.
  • This natural cat food is made with no chicken (or poultry) by-product meals and no corn, wheat, or soy.

Ingredient Information

Feeding Instructions

FAQ

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

SCIENCE-BASED EFFICACY

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.

QUALITY AND SAFETY ARE PARAMOUNT

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.

PALATABILITY MATTERS

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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Questions & Answers

13 Customer Questions


My male Sphynx is 4 yrs old and has been on the W/U veterinary diet for several years now. What is the difference in the W+U diet and the K+M diet ?

Answer by ColleenAug 07, 2024
well you should def check with your vet but: the W is for weight management. Do you have a fat cat? My cat with kidney problems has low appetite and has been dropping weight for years RELATED to the chronic kidney disease, I would NOT want to put her on a weight loss diet!!

My cat is not overweight. Would Blue Buffalo K& M be good for her? She could use more weight.


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).

4.6
Rated 4.6 out of 5 stars
679 Ratings

Customers Mention

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

Ease of Use

87% Positive

Effectiveness

83% Positive

Ingredients

83% Positive

Long-Term Benefits

91% Positive

386 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 Stephanie on Jan 5, 2026

Great ingredients, but phos dry-matter % is on the higher side

With my cats being diagnosed with CKD, I needed to switch them to a diet that would be easier on their kidneys. Many prescription cat foods are full of fillers

With my cats being diagnosed with CKD, I needed to switch them to a diet that would be easier on their kidneys. Many prescription cat foods are full of fillers (which result in a larger deposit rate in the litter box, if you know what I mean). I was glad to see the ingredient list on this food (though I'm not thrilled with all the legumes). The switch over to this kibble was well tolerated by all my cats, and the amount of deposits in the litter box has actually reduced.


Rated 5 out of 5 stars
By Carol on Jan 5, 2026

Seems Likable

I’m not sure yet if my 14 yr old CKD will eat it because she had dental surgery and can’t. But her 10 yr old brother loves it and I’m happy to have him on it too

I’m not sure yet if my 14 yr old CKD will eat it because she had dental surgery and can’t. But her 10 yr old brother loves it and I’m happy to have him on it too as a preventative maintenance. I’m hopeful she will eat it once her mouth heals. I had other cats on prescription dry for years and they often vomited it. I haven’t seen that at all. I think it’s more natural.


Rated 5 out of 5 stars
By Mary on Dec 10, 2025

Good kibbles for kidney cats

My old lady had CKD for 5 years, and she was on these kibbles for most of that time. For years she would eat both types of kibbles in the mix, but for the last year

My old lady had CKD for 5 years, and she was on these kibbles for most of that time. For years she would eat both types of kibbles in the mix, but for the last year she would often spit out the darker brown ones. She had jaw and teeth issues, so it may have been that they fell out rather than her actively spitting them out though. Either way, these were one of the few things she would eat. Cannot recommend them highly enough as a test food for kidney cats.


Rated 3 out of 5 stars
By Ligia on Dec 9, 2025

Expiration date of the product is too close to the purchase time.

My cat likes the food, but the product's expiration date is just a few months away of the purchase date. Probably I will have to throw away a lot of it and this

My cat likes the food, but the product's expiration date is just a few months away of the purchase date. Probably I will have to throw away a lot of it and this is very expensive to be throwing away. My cat won't be able to finish it before it expires. Chewy sells products that won't last long. It has not been the first time this happen buying from Chewy. I may need to find another online retailer as this is not acceptable.


Rated 5 out of 5 stars
By Linkmodo on Dec 16, 2025

In our opinion a better RX option for kidney care perscription cat food

In our opinion a better RX option for kidney care perscription cat food compared to some other major/big brands. The ingredient seems to be of more natural offering

In our opinion a better RX option for kidney care perscription cat food compared to some other major/big brands. The ingredient seems to be of more natural offering compared to other big established brands of renal rx foods. Most importantly, our cats actually enjoy eating this one.


Rated 5 out of 5 stars
By Cynthia on Jan 18, 2026

A must for my senior cat’s good health!

My senior girl is officially 20.5 and doing well. She enjoys this K+M food to supplement her wet food & a supplement daily. Enjoying it for 2 years. Thx!

My senior girl is officially 20.5 and doing well. She enjoys this K+M food to supplement her wet food & a supplement daily. Enjoying it for 2 years. Thx!


Rated 5 out of 5 stars
By Lorien on Nov 12, 2025

Preferred by Kidney Cats

This is legitimately the ONLY kidney food that I have ever been able to get any of my cats to eat consistently. Even my cats on a regular diet will eat it. Those

This is legitimately the ONLY kidney food that I have ever been able to get any of my cats to eat consistently. Even my cats on a regular diet will eat it. Those other brands are missing out on whatever the secret is!


Rated 5 out of 5 stars
By SweetT on Nov 10, 2025

She likes it, hey Mikey!

Meow! This is my cats first food for CKD, I was so happy she liked it. The price is so good compared to the other prescription cat foods. She cleans her bowl

Meow! This is my cats first food for CKD, I was so happy she liked it. The price is so good compared to the other prescription cat foods. She cleans her bowl in one sitting.


Rated 5 out of 5 stars
By Angela on Dec 2, 2025

Kidney Care my Cat WILL EAT

All I want is to find kidney low phos food my cat will eat. It's nearly impossible. About to give up. BUT, he will eat this kibble.

All I want is to find kidney low phos food my cat will eat. It's nearly impossible. About to give up. BUT, he will eat this kibble.


Rated 5 out of 5 stars
By Denise on Oct 26, 2025

Blue Buffalo Kidney + Mobility Support

Charlie love this dry food. Always eats alot of it overnight. He loves the wet version during the day. He's 18 and a half and still can jump high enough to get

Charlie love this dry food. Always eats alot of it overnight. He loves the wet version during the day. He's 18 and a half and still can jump high enough to get into trouble!