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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

Adult Perfect Weight - Dry

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Hill's® Science Diet®
Adult Perfect Weight

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Hill's® Science Diet® Adult Perfect Weight dry cat food provides breakthrough nutrition formulated to help your cat achieve a healthy weight and improve quality of life.

  • Over 70% of cats lost weight within 10 weeks when fed this nutrition
  • Healthy weight adds to quality of life and life expectancy
  • Ideal for multi-cat households with cats of different breeds & weights
  • 100% precisely balanced nutrition

Where To Buy

Key Benefits

Recommended For:

Adult cats that require fewer calories (i.e., cats that are less active, neutered or otherwise prone to excess weight gain).

Not Recommended For:

  • Kittens, adult cats not prone to gaining excess weight.
  • Pregnant or nursing cats. During pregnancy or nursing, cats should be switched to: Science Diet® Kitten Healthy Development.

BenefitFeatureHow it Works
Weight lossProprietary ingredient blendCats at a healthy weight are less prone to develop weight related issues, and live happier, healthy lives.
Maintain lean muscleFresh Chicken #1 ingredientSupport healthy weight loss and maintain lean muscle.
Supports multi-cat householdsBalanced nutritionSimplifies multi-cat household feeding by helping heavy cats reach a healthy weight while providing balanced nutrition to leaner cats.

Additional Info

Healthy choices matter, for both you and your pet. For more than 70 years, Hill's has been advancing knowledge of how to keep pets their healthiest. That means great-tasting, nutritious food with natural ingredients that helps your cat live a long, happy life.

We make every bag of our dry cat food in our own US facilities with highest quality natural ingredients from North America and Europe. These ingredients must meet our strict requirements for purity and nutrient content, which exceed industry standards.

By choosing Science Diet, you help us provide food to shelter pets 365 days a year.
Learn more at

Other Products to Consider

Science Diet® is available in a wide variety of foods for your cat's unique needs. Canned cat food is available from Science Diet® in a delicious Adult Perfect Weight Chicken & Vegetables that your cat will love. Also try Science Diet® treats that are sure to please!

Feeding Guide

Daily Feeding Guide:


  • Adjust feeding amounts as necessary to maintain optimal weight. If you are unsure, ask your veterinarian.
  • New to this food? Mix increasing amounts of your pet's new food with decreasing amounts of the old food over a 7-day period.
  • Keep fresh water available at all times!
  • Your pet's nutritional needs may change as they age. Ask your vet at every checkup.
  • Science Diet is available in a wide variety of dry foods, wet foods and treats for your pet's unique needs.
  • To prevent suffocation, keep this bag out of the reach of pets and children.

Weight Control

Weight of Cat
Weight LossWeight Control
4 lb (1,8 kg) 1/3 cup (30 g) 1/2 cup (45 g)
5 lb (2,3 kg) 1/3 cup (30 g) 1/2 cup (45 g)
8 lb (3,6 kg) 1/2 cup (45 g) 3/4 cup (65 g)
10 lb (4,5 kg) 5/8 cup (55 g) 7/8 cup (75 g)
12 lb (5,4 kg) 2/3 cup (60 g)1 cup (90 g)
15 lb (6,8 kg) 3/4 cup (65 g)1 1/8 cups (100 g)
Animal feeding tests using AAFCO procedures substantiate that Science Diet® Adult Perfect Weight Cat Food provides complete and balanced nutrition for maintenance of adult cats.

Average Nutrient and Caloric Contents

Dry 3409 kcal/kg (300 kcal/cup)

Dry Matter1
Carbohydrate (NFE)32.7
Crude Fiber8.1


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 Adult Perfect Weight contains 3.1 oz. by weight.


Chicken, Brewers Rice, Corn Gluten Meal, Wheat Gluten, Powdered Cellulose, Chicken Meal, Tomato Pomace, Dried Beet Pulp, Flaxseed, Chicken Fat, Chicken Liver Flavor, Coconut Oil, Lactic Acid, Calcium Sulfate, L-Lysine, Potassium Chloride, Choline Chloride, Dried Carrots, DL-Methionine, Taurine, 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), minerals (Manganese Sulfate, Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Calcium Iodate, Sodium Selenite), Iodized Salt, Dicalcium Phosphate, L-Carnitine, Oat Fiber, Mixed Tocopherols for freshness, Beta-Carotene, Natural Flavors, Apples, Broccoli, Cranberries, Green Peas.

Adult Perfect Weight - Dry sd feline adult 052742296814,052742296807,052742296913,052742296906,052742297002

Rated 5 out of 5 by from My cat's love this diet Both my cats had put on some extra weight due to an older car in the house needing to have extra food available. After my old girl passed. I knew I needed to get the extra pounds off. Switching over was a breeze. They picked out the new food over their old food. I was happy it only took a couple of days. They have been on the new diet a couple of weeks and have already dropped some ounces! (Excellent in cat weight loss terms) Stool quality has remained excellent and their haircoat seems to be staying the same as well. So we will continue until we get them back to trimmer kitties and then use this diet to maintain their weight.
Date published: 2014-05-04
Rated 5 out of 5 by from Don't kibble with me Three of my cats have been on the Hill's prescription diet kibble for a few years. They did maintain their weight if I mixed it with an indoor cat kibble with greens. The past three months though they started pawing the prescription food out of their bowls and only eating the green enhanced kibble. I decided to try the perfect weight food for a new taste sensation and they love it. Eat everything in the bowl now and don't trash any of their kibble. I'll try the indoor formula the next time they want to try a new flavor. By the way, I had a local vet that overcharged me and a few others so much for your food that we all buy it online now.
Date published: 2014-01-12
Rated 5 out of 5 by from Helped My Overweight Cat Quickly I feed Hills and was happy to have this opportunity to try Adult Perfect Weight. I have several cats but one is an overeater and almost had mega colon she was so fat. While all the cats took to this formula right out of the bag, she seemed to know it had something in it for her. After over a week of eating this her bowels are normal now and she seems a bit thinner. She is also more active and affectionate. I really believe she feels better. I also notice less hariballs from all the cats. I think the fiber level of this food works wonders. I am anxious to see the results after a month. I would definitely give this product a try.
Date published: 2014-04-29
Rated 5 out of 5 by from Sleek, Slim and Energetic Oskar loves Perfect Weight! He had been on other light formula food without losing weight. He also didn't lose on his prescription food so when the opportunity to try Perfect Weight presented itself I jumped on it. And he jumped on the food! He couldn't wait to get into it. Honestly, I have to say he has not yet lost weight although he is getting the maintenance portion for an 8 lb. cat - maybe he is already his Perfect Weight - he is sleeker and slimmer and has more energy. He also enjoys the wet food which I use as a special treat. Thank you for another excellent product Science Diet!
Date published: 2014-03-20
Rated 5 out of 5 by from Excellent product We love this product,I love it because my cats love it and it has helped them to reduce weight, so I know they are healthier. We began to notice the weight loss within the first two weeks of feeding them Perfect Weight formula. From the first day I opened the bag, it's like they knew it was going to be good because they were sitting there waiting for me to open the bag, now they won't even eat their treats they used to love. They don't waste any of the food, with the optimal care formula they would have it all around the bowl on the floor, but now they savor every morsel.
Date published: 2014-04-05
Rated 4 out of 5 by from Being a Responsible Pet Owner My cat is overweight and the older he gets, I see it taking a toll on his health. He snores and licks all of the hair on his belly. I did the 10-week challange and learned a lot about my feeding habits with my pets which I had not recognized before. I was not taking repsonsibility for their well being, and this product gave me the control to work with my pet towards his ideal weight. It was difficult because he was used to eating however much he wanted. I am still working to retrain him with his eating habits. It is hard, but this product offers the guidance to make his weight loss a reality.
Date published: 2014-04-04
Rated 5 out of 5 by from I finally found a food that all 3 of my cats love! My 3 cats have grown up on Science Diet. First they ate the Kitten formula, then adult, then hairball. A year ago, one of them decided he didn't want to eat it anymore. So I've had to buy different brands trying to appease my 15 year old feline. Recently I bought Adult Perfect Weight for his sister who needs to loose a few pounds, and now all 3 refuse to eat anything else. I'm so glad that I only need to buy 1 food again. Thanks Science Diet :)
Date published: 2014-05-26
Rated 5 out of 5 by from My Cars love it...I love the results Our 2 cats Shy Shy and Sparkle are 3 years old, not very active and have gained a little weight over the past year..I decided to give Hill's® Science Diet® Adult Perfect Weight a try. Not only did my cat girls love the taste, it did well in their sensitive tummies and they trimmed down to a perfect weight. I highly recommend this product to anyone who has a cat that needs to lose weight.
Date published: 2014-07-30
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