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Hill's Science Diet Science Diet
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By Health Condition

r/d® Canine - Dry

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

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 dog.

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

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100% Guarantee We're confident your pet will enjoy Hill's® Prescription Diet® foods. We're so confident that we offer a 100% money-back guarantee.*

Prescription Diet Foods are made in our own U.S. facilities with ingredients from North America, Europe, and New Zealand, which exceed industry standards for purity and nutrient content.

* 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.

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Key Benefits

How It Helps

  • Helps metabolize fat and maintain lean muscle
  • Helps your dog 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® Canine provides all the nutrition your dog needs during weight loss. Please consult your veterinarian for further information on how our Prescription Diet® foods can help your dog to continue to enjoy a happy and active life.

Feeding Guide

Daily Feeding Guide:

Adjust feeding amounts as necessary to maintain optimal weight. If you are unsure, ask your veterinarian. For best results & safety practices:

  • Gradually transition to your pet's new food over a 7 day period.
  • Exclusively feed the recommended Prescription Diet dry food, wet food, & treats
  • Keep fresh water available at all times.
  • Have your veterinarian monitor your pet's condition.
  • To prevent suffocation, keep the packaging out of the reach of pets & children.

Feeding transition

Weight Control

Weight of Dog
Weight LossWeight Control
5 lb (2,3 kg) 1/2 cup (40 g) 7/8 cup (70 g)
10 lb (4,5 kg) 7/8 cup (70 g)1 3/8 cups (115 g)
15 lb (6,8 kg)1 1/4 cups (105 g)1 7/8 cups (155 g)
20 lb (9,1 kg)1 1/2 cups (125 g)2 1/3 cups (190 g)
30 lb (14 kg)2 cups (165 g)3 1/4 cups (265 g)
40 lb (18 kg)2 1/2 cups (205 g)4 cups (330 g)
50 lb (23 kg)3 cups (245 g)4 3/4 cups (390 g)
60 lb (27 kg)3 1/3 cups (275 g)5 1/2 cups (450 g)
70 lb (32 kg)3 3/4 cups (310 g)6 cups (490 g)
80 lb (36 kg)4 1/4 cups (350 g)6 3/4 cups (555 g)
100 lb (45 kg)5 cups (410 g)8 cups (655 g)
Use only as directed by your veterinarian.
Prescription Diet® r/d® Canine is intended for intermittent or supplemental feeding only.

Average Nutrient and Caloric Content

Dry 2982 kcal/kg (245 kcal/cup)

Dry Matter1
Carbohydrate (NFE)39.0
Crude Fiber12.7
Total Dietary Fiber25.2
Soluble Fiber2.1
Insoluble Fiber23.1
Carnitine339 ppm
Vitamin C319 mg/kg
Vitamin E558 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® Canine contains 2.9 oz. by weight.


Whole Grain Corn, Corn Gluten Meal, Chicken By-Product Meal, Powdered Cellulose, Soybean Meal, Soybean Mill Run, Chicken Liver Flavor, Dried Beet Pulp, Pork Liver Flavor, Soybean Oil, Lactic Acid, Caramel color, Pork Fat, DL-Methionine, L-Lysine, Potassium Chloride, Choline Chloride, Iodized Salt, vitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (source of Vitamin C), Niacin Supplement, Thiamine Mononitrate, Vitamin A Supplement, Calcium Pantothenate, Vitamin B12 Supplement, Pyridoxine Hydrochloride, Riboflavin Supplement, Biotin, Folic Acid, Vitamin D3 Supplement), Calcium Carbonate, minerals (Manganese Sulfate, Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Calcium Iodate, Sodium Selenite), Taurine, L-Carnitine, Mixed Tocopherols for freshness, Natural Flavors , Beta-Carotene

r/d® Canine - Dry rd 052742941806,052742859903,052742862408,052742862507,052742941813 8624,8625,8599

Rated 4.7 out of 5 by 94 reviewers.
Rated 5 out of 5 by Years of Success I have owned doxies for years and have always been pretty vigilant with weight control... until I adopted Ms. Jasmine. After back surgery at age 2, we had to address it. Since her first diet in which she lost 2.5 pounds reaching a 10.5 pounds goal using R/D, she has had difficulty finding any light/diet food to maintain her weight long term without drastic restriction. (I have tried a number of premium brands over 3 or 4 years.) It's very frustrating to gain even when on a diet program. We have found a happy balance that is somewhat of a YoYo diet. When she gets about 1-1.5 pounds overweight, we go to R/D and she always looses successfully. We then move back to W/D for 6-8 months as the weight creeps on. Then it is back to R/D. This has worked for about 5 years if not longer. She would rather eat W/D, but once we ease her into the R/D she tolerates it after complaining a bit the first week or so. It is pack with fiber, so keep the scoop handy. Without R/D as a successful diet option for this doxie, her weight loss plan would be so restrictive, she would never be satisfied...or satisfied as a doxy can be. Hands down, I would recommend this if nothing seems to work. It is pricey, but worth it for my small dog. She recently was placed on lower calorie Hills food to prevent crystals in her urine, but her crept up faster than normal even feeding less than recommended amount....Now we have 2 pounds to lose, a bit more than we are used to. I am excited to try Hills new Metabolic Solution as a combined weight loss and management solution for our newest weight possibility. It will be nice to not have to switch foods and maintain weight only using amounts. At first bit, she likes it better than R/D, no evil looks or pouting so far. I will give 1 bag a try, if no results we will go back to the proven routine. April 8, 2014
Rated 5 out of 5 by New 10 year Old Dog! I changed my dogs food because she was sluggish and overweight. She lost over 10 lbs with the first 2-3 months and her energy level kicked up like a puppy. After 9 months on the food I thought I could go back to her old food and did for 1 month. She not only gained weight, her energy level dropped and arthritis seemed to set in? She is back to the R/D and all is doing so well. I really believe in this food and so thankful to my vet for recommending. More coupons please!! January 6, 2014
Rated 5 out of 5 by Even little picky eater dogs will love this product-dramatic results Love this product. I have several little dogs some with weight issues and i can feel good about feeding this to them all to keep their weight in check. They eat every bite down. The most dramatic weight loss I had with one of my dogs is that he went from 20 lbs to 14 and has added years to his life and so much more energy! He used to not be able to walk at all now he runs ! Love the product ! May 19, 2015
Rated 5 out of 5 by Good for Dog But a Little Pricey Both our dogs have been using R/D for years. One had a weight problem, and when we got the other one we just started him on it. Obviously they enjoy the taste because they let us know when it's feeding time. The biggest issue is the cost. I highly recommend going to Hill's website to download the coupon before purchasing your supply. Just remember Hill's limits their coupons but now does allow me to print different ones for the dog food and the cat food. A while back they didn't allow that. To my knowledge the website is the only place to get the coupon. It would be nice if they provided some kind of loyalty points for long-term customers. April 21, 2014
Rated 5 out of 5 by Chubby Dog? This WORKS! My 5 y/o Italian Greyhound was carrying extra weight and the Vet recommended I try Metabolic. I was afraid the dog would refuse to eat it but, to my surprise she gobbles it up twice a day and gets excited just hearing the bag open! She's lost half of the excess weight in just months and still going. My dog does not enjoy being outdoors - zooms out to potty then zooms right back inside, even on beautiful days - so we needed help with a restrictive diet since exercise isn't on her agenda. Metabolic is great! Pricey, but great... 1/2 C. twice a day has done her wonders. I will continue to buy this product. March 10, 2014
Rated 5 out of 5 by Saved me $4,000 surgery fee I have a (now 11 year old) Peek-A-Poo was weighed 11.4lb back in April of this year. Her back knee caps were dislocating when she ran or even walked. She needed to have surgery on both knees ($2,000 ea.) or lose weight They wanted her down to 8lbs. They recommended Hills RD dry dog food. 1/4 cup in the morning and 1/8 cup in the evening and to cut down on treats. She is now 8.8lbs and losing, treats have been cut back and her knees are fine. Not a single problem now. Boy can she run! October 26, 2014
Rated 5 out of 5 by Our dog loves it. Our 8 year old Golden Retriever was on RD for about three years and was always at the right weight. We then tried a cheaper brand dog food and he ballooned in weight and was not very active. We then switched him back about 9 months ago and he is back down to the right weight and keeps up with our 2 year old Australian Shepard. We would recommend this for any dog. November 28, 2013
Rated 5 out of 5 by Excellent food My Pug is my baby and I only feed him the best because I want a healthy pet that will be part of our family for many many years. He is 11 years old and he has energy and is in great health. Good food means a longer happier healthier life April 27, 2014
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