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Hill's Science Diet Science Diet
Hill's Ideal Balance Ideal Balance
Hill's Prescription Diet Prescription Diet
Hill's Healthy Advantage

Kitten Kitten
Adult 1+ Adult 1+
Mature <br/>Adult 7+
Adult 7+
Senior 11+ Senior 11+

Puppy Puppy
Adult 1+ Adult 1+
Mature <br/>Adult 7+
Adult 7+
Senior 11+
Senior 11+

Grain Free


By Health Conditon

r/d® Feline - Dry

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Hill's® Prescription Diet®
r/d® Feline

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Weight reduction
Just like the human epidemic, almost 50% of the pet population is overweight. Even a little extra weight can impact the pet's quality of life and relationship with family because that extra weight can reduce play time, impact mobility and affect the lifelong general health of your cat.

Hill's nutritionists & veterinarians developed Prescription Diet® r/d® clinical nutrition especially formulated to support your cat's weight management. In fact, r/d is clinically proven nutrition for healthy weight loss in just 8 weeks.

Where To Buy

Key Benefits

How It Helps

  • Helps metabolize fat and maintain lean muscle
  • Helps your cat feel full & satisfied
  • Supports a healthy immune system

How It Works

  • Therapeutic L-carnatine levels
  • Optimal blend of soluble & insoluble fiber
  • Clinically proven antioxidants

Additional Info

Hill's Prescription Diet® r/d® Feline provides all the nutrition your cat needs during weight loss. Please consult your veterinarian for further information on how our Prescription Diet® foods can help your cat to continue to enjoy a happy and active life.

Feeding Guide

Daily Feeding Guide:

Important Feeding Information
These amounts are a starting point only. Determine the amount to feed based on TARGET WEIGHT rather than the current weight. Your cat may need less or more food to safely lose weight. Adjust as needed. If you are unsure or if you are not feeding this product for weight loss, ask your veterinarian.

  • Mix increasing amounts of your cat's new food with decreasing amounts of the old food over a 7-day period. Prescription Diet™ formulas are available in a variety of dry foods for your cat's unique needs and canned foods with delicious flavors your cat will love. When using with canned food, decrease the amount of dry food to avoid overfeeding. Supplementation with other foods or treats is unnecessary and may decrease the effectiveness of the food.
  • Keep fresh water available at all times!
  • For best results, have your veterinarian monitor your cat's condition
  • To prevent suffocation, keep this plastic bag out of the reach of pets and children.

Weight Control

Weight of Cat
Weight LossWeight Control
6 lb (2,7 kg) 1/2 cup (45 g) 2/3 cup (60 g)
8 lb (3,6 kg) 5/8 cup (55 g) 7/8 cup (75 g)
10 lb (4,5 kg) 2/3 cup (60 g)1 cup (90 g)
12 lb (5,4 kg) 3/4 cup (65 g)1 1/8 cups (100 g)
14 lb (6,4 kg) 7/8 cup (75 g)1 1/3 cups (115 g)
16 lb (7,3 kg)1 cup (90 g)1 1/2 cups (130 g)
18 lb (8,2 kg)1 cup (90 g)1 5/8 cups (145 g)
Use only as directed by your veterinarian.
Prescription Diet® r/d® Feline is intended for intermittent or supplemental feeding only.

Average Nutrient and Caloric Contents

Dry 3018 kcal/kg (265 kcal/cup)

Dry Matter1
Carbohydrate (NFE)35.4
Crude Fiber14.2
Carnitine535 ppm
Vitamin C125 mg/kg
Vitamin E607 IU/kg


1The nutrient in the product after moisture is removed. It is used to make direct comparisons of nutrient profiles of products with differing moisture contents.
†An eight fluid oz. measuring cup of r/d® Feline contains 3.1 oz. by weight.


Brewers Rice, Chicken By-Product Meal, Corn Gluten Meal, Powdered Cellulose, Chicken Liver Flavor, Soybean Oil, Lactic Acid, Calcium Sulfate, Potassium Sulfate, Choline Chloride, DL-Methionine, Taurine, Glyceryl Monostearate, Potassium Chloride, vitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (source of Vitamin C), Niacin Supplement, Thiamine Mononitrate, Vitamin A Supplement, Calcium Pantothenate, Riboflavin Supplement, Biotin, Vitamin B12 Supplement, Pyridoxine Hydrochloride, Folic Acid, Vitamin D3 Supplement), Iodized Salt, L-Carnitine, L-Threonine, minerals (Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Manganous Oxide, Calcium Iodate, Sodium Selenite), Mixed Tocopherols for freshness, Natural Flavors, Beta-Carotene

r/d® Feline - Dry rd 052742615813,052742589800,052742590301,052742615806,052742589817 6158,5898,5903

Rated 4 out of 5 by from This product really works The prescription diet cat food works wonderfully. I have been using this cat food for about one year and he's been losing wieght and getting healthier. It takes a little time to start seeing the results but there are indeed results. He loves the taste and waits at the door to be fed. My cat loves the food and I love how it is helping him become healthier. There are two pictures of my cat, Simon. Before he weighted about 23 puonds and now, recently, he weights 17 pounds. He lost about 6 pounds and gained a lot more energy.
Date published: 2013-10-19
Rated 5 out of 5 by from Lexi approves of the flavor. We have an overweight cat named Lexi. In Hills Prescription Diet r/d dry cat food, we have found a lower calorie, high nutrition option about which we feel positive and she actually likes. In fact, she likes the food so much that she crawled into an empty bag, seeking the last, tiny bit of food dust that might still be there. See the picture below. Despite feeding her less, she is fairly satisfied (i.e., she does not pester us for food at night). This cat food does seem to be helping Lexi to shed some weight, but it does appear that this will be part of a progress of getting her to a more appropriate size. Hill's coupons do make the this food much more affordable, but not every veterinarian accepts them.
Date published: 2013-04-11
Rated 5 out of 5 by from Scoobie is a lean orange tiger Scoobie started eating Prescription Hill's r/d over a year ago, and has become a lean orange tiger cat. I still feed Scoobie r/d even though he is trim, because his brother also an orange tiger cat, still has a few pounds to go, along with their sister, Kiki, a Russian blue. In addition to my cats loving r/d, Prescription Hill offers coupons on their website, and if you contact them, they will send additional coupons in the mail. Thank you Prescription Hill for your compassion for the health of my pets and for helping me feed them great food, while on a very tight budget. They eat better than I do. Sincerely Scoobie Do, Biscuit Boy, and Kiki
Date published: 2014-08-20
Rated 3 out of 5 by from This product is ok. When I first began giving this prescription diet food to my two cats, they seemed to lose a little bit of weight and I thought we were on the right track. It has been nine months and they eat only prescription r/d (1 cup a day each is allowed, but they do not eat the full amount) and they are not losing any more weight. I am very disappointed because they still need to lose weight AND it's very expensive food.
Date published: 2013-05-17
Rated 5 out of 5 by from Nelly has lost almost 40% of her original body weight on this food. When I adopted 5 year old Nelly in April 2012, she weighed 6.6kg - at that weight she was not active or mobile, and couldn't really even clean herself properly. My vet checked her overall health with blood tests, suggested this food, and told me exactly how much to feed her daily. Nelly was weighed by the vet once a month and I stuck carefully to weighing out her exact daily amount (which was adjusted as the weight came off). She enjoyed the food but didn't pester me between meals. She now weighs 4.1kg and is transformed into a lively, beautiful and playful cat. The vet has just switched her to Hills m/d to get the last tiny bit of weight off, and she loves this food even more.
Date published: 2013-07-04
Rated 5 out of 5 by from Great way to lose a few of those extra pounds As of today, I have not found a kitty treadmill to help my indoor Russian Blue kitty Kiki loose a few pounds. I was feeding her another dry food and noticed she was not her precious loving self. So I switched back to Prescription diet that my Vet recommended. Kiki is feeling and acting like the loving kitty that she is. In addition, I have fallen on difficult times, but Hills has generously sent me coupons whenever I have requested them. Thank you so much for your great products, and being a compassionate company. Kiki's owner Julie
Date published: 2013-12-05
Rated 5 out of 5 by from Prescription Diet r/d dry Our cat loves this food. It is easily digestible and the litter box is much easier to scoop. Our cat has finally lost about 1 1/2 pounds on this food so far. I highly recommend.
Date published: 2013-08-15
Rated 3 out of 5 by from Not working for my cat He is very overweight and has been on this for several months. Before that, he was on a different prescription weight loss food for about a year. He is not fact, I think he is gaining. I do not over feed him. I give him less than the vet prescribed. He does not eat canned food...[will not, I should say] I have used this with another cat in the past and it worked well, even with free feeding. I wish this worked for him. Perhaps, his having asthma and not being able to run around the house very much is the still thinks he should have lost, though.
Date published: 2015-08-12
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