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

Prescription Item

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    $40.99 FREE 1-2 Day Shipping over $49

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This item requires prescription approval. Details

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Feed your feline friend the finest natural ingredients featured in Blue Buffalo Natural Veterinary Diet K+M Kidney + Mobility Support Grain-Free Dry Cat Food. Made with controlled levels of protein from chicken to help manage your pal’s kidney workload. The grain-free formula also 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. This wholesome, natural diet has both beneficial nutrition and a taste your furry friend will love.

Key Benefits
  • 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.

Veterinary Authorization

This product requires a veterinary authorization. Simply provide your vet’s information during checkout and we’ll follow up to confirm. If you have a copy of your authorization, you can expedite the process by taking a photo and emailing it to vetdiet@chewy.com, or by faxing it to 1-800-619-7973.

  1. How To Order

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  • Item Number
  • Weight
    7.0 pounds
  • Brand
    Blue Buffalo
  • Food Form
    Dry Food
  • Lifestage
  • Made in
    United States
  • Special Diet
    Prescription Food, Grain-Free, No Corn No Wheat No Soy
Nutritional Info

Deboned Chicken, Peas, Pea Starch, Potato Starch, Dried Egg Product, Pea Protein, Chicken Fat (preserved with Mixed Tocopherols), Natural Flavor, Flaxseed (source of Omega 3 and 6 Fatty Acids), Powdered Cellulose, Fish Oil (source of DHA-Docosahexaenoic Acid), Potassium Citrate, Calcium Carbonate, DL-Methionine, L-Threonine, Dehydrated Alfalfa Meal, Potatoes, Taurine, Dried Chicory Root, Pea Fiber, Alfalfa Nutrient Concentrate, Choline Chloride, L-Lysine, Turmeric, Vitamin E Supplement, L-Tryptophan, Sweet Potatoes, Carrots, Natural Flavor, L-Carnitine, preserved with Mixed Tocopherols, Iron Amino Acid Chelate, Zinc Amino Acid Chelate, Glucosamine Hydrochloride, Vegetable Juice for color, Salt, Chondroitin Sulfate, Niacin (Vitamin B3), Copper Amino Acid Chelate, Blueberries, Cranberries, Barley Grass, Parsley, Dried Kelp, Yucca Schidigera Extract, Manganese Amino Acid Chelate, Thiamine Mononitrate (Vitamin B1), L-Ascorbyl-2-Polyphosphate (source of Vitamin C), Biotin (Vitamin B7), Vitamin A Supplement, Pyridoxine Hydrochloride (Vitamin B6), Calcium Pantothenate (Vitamin B5), Riboflavin (Vitamin B2), Ferrous Sulfate, Zinc Sulfate, Vitamin D3 Supplement, Vitamin B12 Supplement, Folic Acid (Vitamin B9), Copper Sulfate, Dried Yeast, Dried Enterococcus faecium fermentation product, Dried Lactobacillus acidophilus fermentation product, Copper Amino Acid Chelate, Dried Aspergillus niger fermentation extract, Dried Trichoderma longibrachiatum fermentation extract, Dried Bacillus subtilis fermentation extract, Manganese Sulfate, Sodium Selenite, Oil of Rosemary, Calcium Iodate.

Caloric Content

3,934 kcal/kg, 425 kcal/cup

Guaranteed Analysis:
Crude Protein26.0 % min
Crude Fat18.0 % min
Crude Fiber6.0 % max
Moisture9.0 % max
DHA0.3 % min
Calcium0.5 % min
Calcium0.9 % max
Phosphorus0.4 % min
Phosphorus0.7 % max
Magnesium0.12 % max
Sodium0.35 % max
Vitamin E300 IU/kg min
Taurine0.20 % min
Omega 3 Fatty Acids1.5 % min
Omega 6 Fatty Acids3.0 % min
L-Carnitine300 mg/kg min
Glucosamine400 mg/kg min
Chondroitin Sulfate300 mg/kg min
Feeding Instructions
Weight of CatDaily Feeding (cups)
5 - 9 lbs1/4 - 1/2
10 - 14 lbs1/2 - 3/4

Preparation Options:

Feed dry for crunchy & delicious nutrition nuggets & LifeSource Bits right from the bag, or add warm water and mix to fully release flavors & aroma.

Be sure to have a clean bowl of cool, fresh water available at all times. Increased water intake can be beneficial for kidney function.

Transition Instructions

With veterinarian approval, cats should be gradually transitioned from their old food to Blue Buffalo Natural Veterinary Diet. Start by mixing 25% of Blue Buffalo with the cat's old food, and gradually increase the proportion of Blue Buffalo food over the next 14 days.


Why should I buy Vet Diet food online?

Shopping for Vet Diet food is easy! Chewy experts are available 24/7 to answer your questions and guide you through the process. We offer competitive prices, free shipping on orders over $49, and more savings if you sign up for an Autoship subscription.

How do I order Vet Diet food?

  1. Search our website for the diet your vet recommends, then add it to your cart. You can purchase your Vet Diet food with any other goodies you need!
  2. At checkout, you’ll be asked for required information. Enter your pet’s name and type your vet’s name and telephone number.
  3. Place your order, and we’ll take care of the rest!

How will you contact my vet?

Our Vet Diet team will personally contact your vet for approval. If your clinic needs more information from you or recommends a different diet, we’ll let you know immediately.

Does it help if I send you my prescription?

Yes! If you have a paper copy of your prescription, email a picture to vetdiet@chewy.com, start a chat, or fax your prescription to 1-800-619-7973.

Can I use a prescription written by a veterinarian out of state?

Of course! We can accept valid prescriptions from anywhere in the United States and Canada—that includes US territories, like Puerto Rico.

Why do I need a prescription?

Veterinary diets are formulated with the precise ingredients and nutrients needed to address specific medical issues. If you don’t have a paper prescription, no sweat—once you provide your vet’s information, our team will take over.

Can someone else (such as a caretaker or family member) place an order for my pet?

Yes, but we’ll need them to provide us with your full name or the pet’s owner’s name via phone, email or chat after the order is placed, so the clinic can locate your pet’s records when we contact them.

How can I help expedite my order?

Just follow these simple steps: 1. Create your pet ’s profile on Chewy.com. 2. If you have an Autoship scheduled, but you’re running low on refills, contact us ahead of time to let us know if you have a new clinic or if any prescription information has changed. 3. If you have a prescription handy, send it to us before you order—by sending an email to vetdiet@chewy.com, starting a chat with one of our experts, or faxing us at 1-800-619-7973.

Do I need to set up a pet profile?

We recommend it, but it’s not required. You can create your pet’s profile by logging in at Chewy.com, hovering over your account, and choosing “pet profile.”

Do prescriptions expire?

Yes. Your vet will tell us when your prescription will expire and how many refills we can send before they’d like you to check back in with them.

Can I set up auto refills?

Yep! Sign up for Autoship and we’ll automatically ship your food for as long as your prescription allows. If you run out of refills, or your prescription expires, we’ll automatically contact your vet for a new approval. If we hit any bumps in the road, we’ll let you know right away.

What if I have more questions? How can I reach the Vet Diet team at Chewy?

Email us at vetdiet@chewy.com, start a chat on Chewy.com, or call us anytime at 1-800-672-4399. We’re here for you 24/7.

About BLUE Natural Veterinary Diet®

A Natural Therapeutic 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.

A satisfying, tasty treat

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.

  BLUE Natural Veterinary Diet<sup>®</sup> GI Gastrointestinal Support BLUE Natural Veterinary Diet<sup>®</sup> HF Food Intolerance BLUE Natural Veterinary Diet<sup>®</sup> NP-Alligator

BLUE Natural Veterinary Diet® GI Gastrointestinal Support

BLUE Natural Veterinary Diet® HF Food Intolerance

BLUE Natural Veterinary Diet® NP-Alligator

  • Readily digestible proteins, carbohydrates and fats for optimal nutrient absorption.
  • Contains key antioxidants to support a healthy immune system.
  • Includes prebiotic fibers to help balance and support healthy microflora for overall gastrointestinal health.
  • Hydrolyzed salmon, which is a readily digestible protein source that helps minimize the chances of adverse reactions to food.
  • Provides fatty acids that support healthy skin and coat.
  • Contains key antioxidants to support a healthy immune system.
  • Alligator-A high-quality, novel protein rarely associated with food intolerance in cats.
  • Fish oil and flaxseed provide fatty acids that support healthy skin and coat.
  • Contains key antioxidants to support a healthy immune system.
Health Indications Gastrointestinal Support Food Intolerance Food Intolerance
Available Form Dry and Wet Dry Dry
LifeSource Bit® Yes No No
  BLUE Natural Veterinary Diet<sup>®</sup>  W+U Weight Management + Urinary Care BLUE Natural Veterinary Diet<sup>®</sup> K+M Kidney + Mobility Support

BLUE Natural Veterinary Diet® W+U Weight Management + Urinary Care

BLUE Natural Veterinary Diet® K+M Kidney + Mobility Support

  • Formulated with the ideal levels of fat and calories to help weight loss.
  • Increased fiber supports satiety to help cats feel fuller, longer.
  • Formulated to help support urinary health by controlling key mineral levels.
  • Controlled levels of proteinto help manage kidney workload.
  • Controlled levels of phosphorus and sodiumto help support kidney health.
  • Formulated to support healthy joint function and overall mobility.
Health Indications Weight Management and Urinary Care Kidney Support
Available Form Dry and Wet Dry and Wet
LifeSource Bit® Yes Yes

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.


About Blue Buffalo

Customer Reviews

41 Reviews 41 Reviews 4.7 out of 5 Stars

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95% Recommend

95% of reviewersrecommend this product

4.7 / 5

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41 Reviews

Showing 1-10 of 41 Reviews

  • 5 out of 5 stars

    Taste tests choose this kibble

    By on

    My kitty has always favored kibble. She’s been eating Blue Buffalo Sensitive Stomach for years. But after being diagnosed with kidney failure I had to find renal food with low phosphorus, high moisture, etc. I tried several brands and my kitty settled on Blue Buffalo Kidney and Mobility. Makes me happy she loves her new kibble! I hope it helps her stay healthier for many years to come!

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  • 4 out of 5 stars

    Something good to eat!

    By on

    My elderly CKD cat is a picky eater, who mostly eats wet food. Still, she sometimes wants a bit of crunchy food, so I always keep a little available. I've given her 4 other types of kidney dry food to no avail. Here is one that she will eat, if or when she's in the mood. And I can feel good that she's finally eating something that's good for her.

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  • 5 out of 5 stars

    They like it!

    By on

    I've fed my cats regular Blue Buffalo for years, since I've brought them home, had to change to a prescription diet for one because the veterinarian suggested it due to possible chronic kidney disease. I've slowly transitioned them, over 7 days, adding a little more every 3 days, they seem to like it just as well as there normal food!

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  • 5 out of 5 stars

    Loved by Picky Maine Coon

    By on

    We tried feeding our very picky 15 year old Maine Coon many different kidney diet wet and dry foods. Dry K+M is the only kidney diet food that she will eat. We are grateful this product exists.

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  • 5 out of 5 stars

    Picky Kitty Power Chows!

    By on

    I have a very picky senior cat with kidney disease. She loves this food and gobbles it down. The glucosamine has brought back her bouncy friskiness. I am so glad that I took a chance on this product, and if you have a picky senior cat you might want to give it a whirl.

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  • 5 out of 5 stars

    Given the choice, my 7+ year neuter male cat prefers purr-furs this cat food

    By on

    I purchased this as a preventative, because my neuter tom is headed into the senior years where they can get urinary tract problems, and also he seems to have slowed down a bit after an injury. And, although I don't know medical results yet because I have just only recently switched him to this from Blue Wilderness in a variety of flavors, (his favorite of which was Denali Dinner), he not only prefers this, but the second little wildcat we have adopted (who will eat a "horse-shoe dipped in Chocolate") also loves it and crowds him out. That's not good because this is much more expensive, but then so are vet bills.

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  • 4 out of 5 stars

    He likes it!

    By on Top 250 Contributor

    Smaller kibble so it seems easier for him to eat. I put a little water in It though since he needs all he can get. Typical- loved it at first but now just likes it. At least he likes it!

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  • 5 out of 5 stars


    By on

    So glad to see a healthier prescription food option. Before my baby needed special kidney food i fed her the Blue Basics LID which i felt good about the quality of. When i first put her on the other brand name RX food i was so disappointed to read the list of ingredients and see so much junk and fillers. She also began itching and scratching all the time. I stumbled upon this RX food and was so excited to find the brand and quality i love with the RX that my baby needed. She eats this food way better than the old one and the itching has disappeared!

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  • 5 out of 5 stars

    Talking with my mouthful is difficult...mmm-rff-crunch-e-owwww

    By on

    My human servant was afraid the switch to new food would be difficult. Just to toy with her I did pretend at first to be uninterested but I like the food too much.

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  • 5 out of 5 stars

    Great food

    By on

    Finally a perscription kidney food they will eat. Also the ingredients are so much healthier and natural than the others. I feel good giving it to them. Having 2 older cats the fact it also helps with mobility is a plus.

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