Did you know that obesity affects more than 50 percent of America's dog population? If your pooch is overweight, he can develop all kinds of health problems, such as painful arthritis, heart disease, breathing difficulty, diabetes and even bladder cancer. For your dog, the excess weight and the resulting health problems can mean less play time and depression.
Weight gain is the result of an increase in body fat. This is usually caused by eating too much, especially when combined with lack of exercise. But there can be other contributing factors too.
Age: Older dogs are less active, have less energy, and require fewer calories.
Breed: Some dog breeds are more likely to gain weight. These include Labrador retrievers, and cocker and Cavalier King Charles spaniels.
Neutering/ spaying: Clinical studies have shown that the basic metabolism of neutered dogs is lower. Neutered dogs actually require fewer calories.
Medical Problems: Very occasionally weight gain is associated with a medical disorder that may require specific treatment
Overfeeding: Dogs with unlimited access to food understandably eat more than they need
Overeating: Many commercial foods are loaded with salt and fat. This improves taste, which means your dog will want to gorge
Feeding habits: Feeding table scraps and "people food" can lead to obesity
Lack of exercise: Too much food and too little exercise produces a typical result: Obesity
IMPORTANT: Even if your dog does not show any signs of being overweight, it is important to have regular weight checks at the veterinarian’s to make sure his ideal weight is maintained.
All dogs have an ideal weight for their size and breed. Your veterinarian will be able to tell you what this is, and show you how to check that your dog is maintaining a healthy weight. Between check-ups, place your hands on his side - are his ribs hard to feel or even impossible to feel? If so, he is likely overweight.
If your dog is overweight, you may notice some of the following signs:
Weight problems are common in dogs, and can be successfully managed through changes in dog food or a nutrition program. Combining a change in nutrition with increased exercise is the most effective way of achieving a healthy weight.
The food your dog eats plays an important role in his overall health and well-being. Balanced nutrition is an essential part of an active, healthy lifestyle. Eating too much dog food, snacks or people food will cause your dog to become overweight, and this increases the risk of conditions such as arthritis, diabetes, heart disease and breathing problems.
Food plays a very important role in treating an overweight dog. Along with exercise, a low-fat and low-calorie food is essential in helping your dog lose weight and stay fit. Fiber is also a key ingredient since it helps your dog eat less while keeping his full.
Once your dog has been overweight, he may be prone to weight gain and should have an ongoing weight-management plan based on good nutrition, exercise and regular check-ups and weigh-ins.
For accurate diagnosis and treatment options, always consult your veterinarian and ask them to recommend the best food for your dog’s weight management
One of our staff authors prepared this article for you
Low calories for less active small & mini dogs
Improves Everyday Ability to Get Up & Go
Hill's Science Diet Sensitive Stomach & Skin Grain Free dry dog food is gentle on stomachs. Nourishes skin & promotes a lustrous coat.
Supports healthy immune system, digestion, lean muscle & beautiful coat
Over 70% of dogs lost weight within 10 weeks when fed this nutrition
Supports lean muscle for dogs who prefer smaller kibble
This weight management and mobility support dog food was created with Hill’s unique understanding of the biology of overweight dogs.
Science Diet's breakthrough nutrition supports ultimate digestive well-being & healthy microbiome. Delicious food in a small bite size
Hill's Science Diet Sensitive Stomach & Skin Large Breed dry dog food is gentle on stomachs while nourishing skin & promoting a lustrous coat. In a delicious large bite size for large breed dogs.
For the unique nutritional needs of mature Small & Mini Dogs
Beef & Barley Entrée with great taste and precisely balanced nutrition to support 5 essential building blocks for lifelong health
For the unique nutritional needs of mature Small & Mini dogs
Improves Everyday Ability to Get Up & Go
Over 70% of dogs lost weight within 10 weeks when fed this nutrition
For the faster metabolism of Small & Mini dogs
Supports healthy joints, immune system, digestion, lean muscle & beautiful coat
Gentle on stomachs while nourishing skin & supporting development in growing puppies
Science Diet's breakthrough nutrition supports ultimate digestive well-being & healthy microbiome for dogs age 7+. Delicious food in a small bite size
Learn why some dog breeds are not strong swimmers, which specific breeds might struggle in water, and water safety tips if you have one of those breeds.
Learn how much exercise is right for your dog's breed, age & size, as well as how choosing the right dog food affects his ability to exercise & stay active
Learn why fiber is an important part of a dog's diet, including the best sources of fiber, why solubility is key, how fiber can help manage disease & more.
Thinking of using a dog whistle with your furry friend? Learn the different types of whistles, if they are safe for your dog, and training considerations.
If your dog won't pee, it could indicate anything from stress, bladder stones, kidney issues, to an emergency. Discover the causes and what to do here.
Learn the reasons why your dog might be excessively barking, as well as how to train him to recognize when to stop.
Picking up dog poop can be unpleasant, but there are lots of reasons it's important: local laws, bad smells, diseases and impact on grass are all factors.
Learn about potential health issues that can occur if your dog eats a dead bird, such as bacterial & parasite issues, and signs that can indicate sickness.
Reduce the chances of your puppy developing a growth disorder by discovering the issues that cause this dog disease and taking steps to combat it.
Learn about dogs' ability to smell cancer in humans before even traditional screenings, including amazing real life stories demonstrating this ability.
Learn the facts about whether broccoli is good for your dog, including any health & safety concerns, portion information, preparation tips and more.
If you notice your dog rubbing his nose raw on different surfaces, you probably want to know why. Learn common reasons for this behavior & prevention tips.
Understand the role that Omega-6 and Omega-3 fatty acids play in your dog's overall health, and how you can ensure they are getting enough.
Learn the basics for safely trimming your dog's nails at home, including tools you'll need and the technique for making trimming painless and easy.
Use these helpful tips for going on a road trip with your dog to keep him safe and happy.
Discover creative ways you can provide your large breed dog with the exercise he needs to lead a healthy, active lifestyle.
Your Dog Ate Deodorant! What You Need to Know
Signs of an enlarged prostate in dogs (benign prostatic hyperplasia) aren't easy to spot, so learn more about symptoms, treatments & prevention options.
Learn how to recognize the signs of facial paralysis in dogs, understand its causes and how the condition can be managed with the help of your vet.
Learn what to look for when choosing the best dog food for your pup. Healthy ingredients, your dog's age & his physical condition are important factors.
Our low calorie formula helps you control your dog's weight. It's packed with high-quality protein for building lean muscles, and made with purposeful ingredients for a flavorful, nutritious meal. Clinically proven antioxidants, Vitamin C+E, help promote a healthy immune system.
Our low calorie formula helps you control your dog's weight. It's packed with high-quality protein for building lean muscles, and made with purposeful ingredients for a flavorful, nutritious meal. Clinically proven antioxidants, Vitamin C+E, help promote a healthy immune system.
©2025 Hill's Pet Nutrition, Inc. As used herein, denotes registered trademark status in the U.S. only; registration status in other geographies may be different. Your use of this site is subject to the terms of our Legal Statement. About our Ads. Cookie Consent Tool