Hill's® Prescription Diet® k/d® + Mobility Feline

The nutrition of Prescription Diet® k/d®+Mobility cat food is specially formulated by nutritionists & veterinarians to help manage cats suffering from chronic kidney disease AND degenerative joint disease (DJD) and is formulated to improve & lengthen quality of life.6,8,9

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  • The nutrition of Prescription Diet® k/d®+Mobility cat food is specially formulated by nutritionists & veterinarians to help manage cats suffering from chronic kidney disease AND degenerative joint disease (DJD) and is formulated to improve & lengthen quality of life.6,8,9

    Feature/ Nutrient Level Benefit
    Phosphorus & Sodium Reduced Helps slow the progression of chronic kidney disease
    Essential Amino Acids Increased More than 150% of AAFCO minimum to help the cat's natural ability to build muscle mass daily
    L-Carnitine Added Helps support fat utilization as a source of energy, sparing muscles
    EPA/DHA fatty acids from fish oil Added Helps fight kidney and joint inflammation
    Antioxidants & B-complex vitamins Added Promotes healthy immune system and brain function
    Enhanced Appetite Trigger (E.A.T.)™ Technology for cats Added Stimulates appetite in renal cats and increases caloric intake

    Made in our own USA facilities with U.S. and imported ingredients.

    * 100% Satisfaction Guarantee - if you are unsatisfied for any reason, return the unused portion to the place of purchase for a full refund or replacement.


    • Chronic Kidney Disease (CKD) with concurrent osteoarthritis/degenerative joint disease (DJD) 
    • Urate & cystine urolithiasis management 


    Not Recommended For:

    Growing kittens, pregnant or nursing cats.

    Evidence-Based Clinical Nutrition:


    • Cats with CKD fed k/d® Feline experienced significantly less episodes of uremic crises during the 2-year study period compared with the cats fed the maintenance control food (0 and 26% of cats suffered uremic episodes, respectively).6
    • Moreover, there were significantly less CKD-related deaths in the group of cats fed k/d® Feline (0%) compared with the group of cats fed the maintenance control food (22%).6

    Feeding Studies Confirm Cats with Chronic Kidney Disease Eat Significantly More Calories When Fed Hill’s® Prescription Diet® k/d® Feline:

    • Clinically shown to help improve appetite in cats with CKD through enhanced sensory appeal, stimulating up to 29.7% greater caloric intake compared with competitor renal foods.7
    • Up to 88% of cats with CKD preferred k/d® with Enhanced Appetite Trigger (E.A.T.)™ Technology compared with leading renal foods.7


    Prescription Diet® k/d®+Mobility Feline has the nutritional attributes of Prescription Diet® k/d® Feline and j/d® Feline. This nutrition has been clinically proven to decrease renal-related mortality and uremic crises in cats with CKD, and improve ability to jump and decrease joint stiffness in cats with degenerative joint disease in as little as 28 days.

    • Based on veterinary clinician assessment as well as owner assessments, after 30 days of being fed Prescription Diet® j/d® Feline, 89% of cats with DJD demonstrated improved ability to jump, and 72% experienced reduced stiffness.8
    • Sixty-eight percent of cats fed j/d® Feline for 30 days exhibited increased activity, and 62% had reduced lameness. Additionally, 55% of cats with DJD fed j/d® Feline for 30 days demonstrated reduced pain on joint manipulation.8
    • Cats with DJD fed j/d® Feline for 14 days exhibited plasma metabolomic changes consistent with decreases in metabolic pathways associated with inflammation and cartilage degradation. Some markers of proteoglycan and collagen degradation were also significantly decreased after 14 days. 9
    • Compared with the control food, cats with DJD had significantly increased average daily activity levels when fed j/d® Feline.9


    Additional Info:

    • Chronic kidney disease (CKD) is a major cause of morbidity and mortality in dogs and cats.1  Nutritional management has been the cornerstone of long-term treatment of this condition for many years and has been shown to significantly decrease CKD-related mortality in cats.  There is strong evidence behind nutritional management of canine and feline CKD with Hill’s® Prescription Diet® k/d®.2,3  While nutritional management of CKD in companion animals is effective, a large proportion of these are older pets, many of which suffer from concurrent conditions. 
    • Another common condition of aging cats is degenerative joint disease (DJD).  A recent study found that 69% of cats with DJD also suffered from CKD.4  While often not clinically obvious to owners, studies have shown that 90% of cats over the age of 12 years suffer from DJD.  Nutritional management with omega-3 fatty acids has proved to be effective in managing DJD in cats.5  Omega-3 fatty acids provide clinical benefit to cats suffering from DJD by helping control inflammation and reducing the expression and activity of cartilage proteoglycan-degrading enzymes.  Nutritional management of feline DJD with Prescription Diet® j/d® has been proven to be effective at both decreasing stiffness and increasing daily activity in these patients.5
    • As cats grow older, they may also suffer from cognitive dysfunction.  The behavioral signs of cognitive dysfunction tend to become noticeable in cats that are 10 years of age or older.  Chronic kidney disease, DJD, and cognitive dysfunction are common conditions impacting the lives of our senior feline companions. 
    • Nutrition can play a key role in managing these age-related conditions.  That is why Hill’s nutritionists and veterinarians developed Prescription Diet® k/d®+Mobility for cats.  This clinical nutrition not only supports the cat's kidney function but also helps to improve mobility and increase cognitive alertness and vitality.  
    • k/d®+Mobility combines the nutrition of k/d® with the technology and efficacy of Prescription Diet® j/d®.


    1 Lulich JP, Osborne CA, O’Brien TD, et al. Feline renal failure: questions, answers, questions. Compend Cont Ed Pract Vet. 1992;14(2):127-153.

    2 Polzin DJ. Evidence-based step-wise approach to managing chronic kidney disease in dogs and cats. J Vet Emerg Crit Care. 2013;23(2):205-215.

    3 Roudebush P, Polzin DJ, Ross SJ, et al. Therapies for feline chronic kidney disease: What is the evidence? J Feline Med Surg. 2009;11(3):195-210.

    4 Marino CL, Lascelles BD, Vaden SL, et al. Prevalence and classification of chronic kidney disease in cats randomly selected from four age groups and in cats recruited for degenerative joint disease studies. J Feline Med Surg. 2014;16(6):465–472.

    5 Sparkes A, Debraekeleer J, Fritsch D, et al. An open-label, prospective study evaluating the response to feeding a veterinary therapeutic diet in cats with degenerative joint disease (abstr), J Vet Intern Med. 2010;24(3):771.

    6 Ross SJ, Osborne CA, Kirk CA et al. Clinical Evaluation of Dietary Modification for Treatment of Spontaneous Chronic Renal Disease in Cats, J Am Vet Med Assoc. 2006;229(6):949-957.

    7 Fritsch D, Vanchina M, Stiers C, Jewell D. Hill’s Pet Nutrition Clinical Evidence Report 2016.

    8 Sparkes A, Debraekeleer J, Fritsch D, et al. An Open-Label, Prospective Study Evaluating the Response to Feeding a Veterinary Therapeutic Diet in Cats with Degenerative Joint Disease (abstr.)

    9 Frantz N, Abrahamsen M, Mickelsen S, et al. Effects of a Therapeutic Food on Clinical Measures, Cartilage Biomarkers and Metabolomic Changes in Cats with Appendicular Degenerative Joint Disease, ACVIM Forum 2009 (abstract). J Vet Intern Med. 2010;24(3):771.

  • How to adjust feeding amounts to maintain optimal weight.

    • Adjust feeding amounts as necessary to maintain optimal weight. Monitoring your patient's condition will assure the nutritional recommendation provides the best results.
    • Recommend feeding Prescription Diet dry food, canned food, and treats exclusively.
    • Gradually transition to the new food over at least a 7 day period. Some cats may require a 3-4 week transition for full acceptance. 

    Adult maintenance

    Weight of Cat - lbs (kgs) Amount per Day - cups (grams)
    6 (2,7) 3/8 (45)
    8 (3,6) 1/2 (60)
    10 (4,5) 1/2 (60)
    12 (5,4) 5/8 (75)
    14 (6,4) 2/3 (75)
    16 (7,3) 3/4 (85)
    18 (8,2) 7/8 (100)

    Animal feeding tests using AAFCO procedures substantiate that Hill's® Prescription Diet® k/d® + Mobility Feline provides complete and balanced nutrition for maintenance of adult cats
  • High quality protein and thoughtfully sourced ingredients.

    Brewers Rice, Corn Gluten Meal, Pork Fat, Soy Protein Isolate, Chicken Meal, Dried Beet Pulp, Egg Product, Fish Oil, Chicken Liver Flavor, Potassium Citrate, Soybean Oil, Lactic Acid, Flaxseed, Calcium Sulfate, DL-Methionine, Choline Chloride, L-Lysine, L-Arginine, L-Threonine, Taurine, Iodized Salt, vitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (source of Vitamin C), Niacin Supplement, Thiamine Mononitrate, Calcium Pantothenate, Pyridoxine Hydrochloride, Vitamin A Supplement, Riboflavin Supplement, Biotin, Vitamin B12 Supplement, Folic Acid, Vitamin D3 Supplement), L-Tryptophan, L-Carnitine, minerals (Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Manganous Oxide, Calcium Iodate, Sodium Selenite), Mixed Tocopherols for freshness, Natural Flavors, Beta-Carotene.

  • Balanced nutrition that exceeds AAFCO nutrition standards.

    4155 kcal/kg (483 kcal/cup†)

    Nutrient As Fed1
    Dry Matter2
    As Fed, Caloric Basis3
    g/100 kcal
    Protein 27.4 28.9 6.6 g / 100 kcal
    Fat 20.9 22.0 5.0 g / 100 kcal
    Crude Fiber 1.0 1.0 0.2 g / 100 kcal
    Carbohydrate / NFE 40.8 42.9 9.8 g / 100 kcal
    Calcium 0.67 0.70 160 mg / 100 kcal
    Phosphorous 0.48 0.50 115 mg / 100 kcal
    Sodium 0.26 0.27 63 mg / 100 kcal
    Potassium 0.78 0.82 188 mg / 100 kcal
    Magnesium 0.054 0.057 13 mg / 100 kcal
    Carnitine 635.1 ppm 668.5 ppm 15.28 mg / 100 kcal
    Vitamin C 121 ppm 127 ppm 2.90 mg / 100 kcal
    Vitamin E 590 IU/kg 621 IU/kg 14.19 IU / 100 kcal
    Total Omega-3 FA 33.76 35.54 8125 mg / 100 kcal
    Chondroitin Sulphate 424 ppm 446 ppm 10.20 mg / 100 kcal
    Glucosamine 552 ppm 581 ppm 13 mg / 100 kcal
    Taurine 0.28 0.29 69 mg / 100 kcal
    DHA 0.323 0.340 77.8 mg / 100 kcal
    EPA 0.471 0.496 113.5 mg / 100 kcal
    Total Omega-6 FA 63.36 66.70 15250 mg / 100 kcal


    1Differs from label guarantees which are either maximums or minimums.
    2The nutrient in the product after moisture is removed. It is used to make direct comparisons of nutrient profiles with differing moisture contents.
    3Nutrient intake for every 100 kilocalories consumed.

    †An eight fluid oz. measuring cup of Hill's® Prescription Diet® k/d® + Mobility Feline contains 4.1 oz. by weight.

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