Is obesity in dogs a disease

Obesity in Dogs: A Major Health Threat Hiding in Plain Sight

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Theres a weight problem in America and it isnt just affecting humans.

The most recent statistics classify the majority of dogs in the U.S.56%as overweight or obese. While that makes obesity a major health crisis for dogs, its a problem thats often overlooked, as many pet owners may not even realize their pets are overweight.

I see people coming in constantly with 90-pound Labs and they say, she looks great, says Dr. Ernie Ward, DVM, CVFT, and founder of theAssociation for Pet Obesity Prevention(APOP). Well, actually, that dog is 15 pounds overweight. But weve normalized it. This kind of dog embodies what APOP has called the fat pet gapthe misalignment between what we think a dog should look like and what a healthy body composition should really be.

Obesity in dogs comes with significant consequences. In fact, Ward and other vets call it our pets biggest health threat. And its not an isolated issue; obesity is linked to a whole raft of health problems including arthritis, chronic kidney disease, bladder/urinary tract disease, liver disease, low thyroid hormone production, diabetes, heart failure, high blood pressure, and cancer. We think its very important that people understand this isnt just a cosmetic issue, says Dr. Ward. There is a physiological consequence to this.

A slimmer margin of error

While obesity is loosely defined as 30% above ideal body weight (there is no universally accepted definition forpets), veterinary experts say just being overweight impacts pet health. And thats one of the challenges in addressing this issuemany pet owners may simply not realize thereisan issue.

You look at your dog and it seems healthy and its active and doesnt have any apparent health issues, says Ward. So you say, its normal, and by extension its morphology, or its size, is normal. But the problem is that we often dont know what what normal is when it comes to dogs, so we project our own human-centric perspective. In human terms, we think we just need to drop five pounds, says Ward. Well, the amount of physiological impact of a few pounds is much, much greater and more concentrated in pets than in people. Five pounds on a cat is catastrophic. Five pounds on a Lab is significant. We think a few pounds off my Lab; what could the consequence of that be..? But the consequences are that Labs hips are deteriorating, its causing damage to the kidneys, its probably causing high blood pressure which is causing a constellation of problems, and its increasing cancer risk.

Dr. Carol Osborne, an integrative veterinarian at Chagrin Falls Pet Clinic in Ohio, echoes the fact that a dog doesnt have to be clinically obese to experience health consequences. Being just 10% overweight decreases a dogs lifespan by one-third and predisposes him to heart, kidney and liver disease as well as diabetes, arthritis,and cancer, she says.

Osborne says that adipose tissue (aka fat) is filled with blood vessels, and the added rich blood creates inflammation. This all creates an environment attractive to cancer cells and increases a dogs risk of developing the disease, she says.

Cancer is the number one killer of dogs today, says Osborne.

And, for some smaller breeds, extra pounds make a huge difference. Three extra pounds for canines in the toy category is the equivalent of gaining approximately 30 pounds for you or me, she says.

Holistic veterinarian and researcher Dr. Jean Dodds, of Hemopet veterinary center in California, says the health effects of having even a marginally overweight dog include reduced energy with resultant less exercise, easy keeper (gains weight on small amounts of food), skin and hair coat conditions, and irregular female reproductive cycles, if intact.

Conversely, obese dogs may benefit from even just slight weight loss. According to aclinical trial published in 2010,obese dogs with osteoarthritis showed a significant decrease in lameness from weight loss starting at 6.10%.

Another study,published in the Journal of Veterinary Internal Medicine in 2018 found that being overweight was associated with a shorter lifespan in the 12 dog breeds studied. The estimated reduction in lifespan for the overweight group was up to two-and-a-half years.

We look at a dog with obesity and if a dog loses as little as 6% body weightthats six pounds on a 100-pound Retrieverit makes a difference, says Ward. It doesnt take a lot of weight loss to make the pet feel better. I really try to emphasize that when Im talking to (pet owners) because its a quality of life issue as much as a longevity and disease-prevention issue.

Osborne says shes seen this quality of life improvement from weight loss time and again. One of her clients came in with a two-year-old male Pomeranian named Smokey that weighed in at 45 pounds. When he first visited, the dog already had one cranial cruciate ligament (CCL) surgery on a hind leg and was about to have a second. Osborne changed his dietwhich involved stopping the dry kibble and replacing it with chicken and fresh vegetables.

At this point he is down to 22 pounds, she says. He acts, feels and looks like a puppy instead of sleeping under the kitchen table most of the day and barely moving at all. Hes running around the house, ready to play and having a ball. And he wont need another surgery after all.

Rewriting your dogs future

For pet owners with dogs who are not obese and who arent showing obvious health symptoms, the concern may not seem as pressing. But Ward warns against not taking action when you can.

I see too often a 10-year-old Lab mix and suddenly they cant get into the car because of crippling hip arthritis caused by obesity, he says. But if you can rewind the tape, you dont have the years of cumulative damage. (Obesity) is a slow and insidious and silent killer, and people may know its happening, but they dont take action until theres a crisis. I say that nobody treats obesity until theres a catastrophe. And when its catastrophic, you may not recover.

A guide for dog owners: How to assess your dogs weight

The question remains: How can pet owners determine the ideal weight for their dogs?

The rib testOsborne says it begins with keeping regular track of your dogs body condition. She recommended the rib test.

Stand behind your dog, gently run your hands along either side of the rib cage, she says. You should be able to easily feel, but not see each rib, and your dog should have a waist or a tucked up area in front of the hind legs. If you can pinch more than an inch and/or your dog has lost his waist, its probably time to think about reducing.

The standing testWard opts for another method. I recommend you do the standing test. Look at the dog from the sidelean down and look from the sideand see [if] their abdomen or stomach is sagging, he says. Then I look from the top: From standing I should see an hourglass indentation in front of the hips. You should see the chest extend out and the waist tapers in making an hourglass.

While dogs vary widely in body shape and volume of hair and fur, Ward says this test should work for 95% of dogs (he notes that exceptions include English Bulldogs and Pugs).

Food matters most

Many vets agree that weight loss begins and ends at the food bowl for dogs and cats. Based on available literature and experience, Ward breaks down the weight-loss math this way: 60-70% diet and 30-40% exercise.

So, knowing exactly how much to feed your dog becomes key. Like many experts, Ward cautions against using the guidelines on most commercial dry dog food packages to determine how much youre feeding. The parameters, which are based on adult dogs for all life stages, are far too broad to accommodate every dogs needs. For example, Ward says, spaying or neutering a dog reduces their energy requirement by 20-30%. So already, if youre feeding according to guidelines youre overfeeding a pet who is spayed or neutered, he says. I see so many pet owners say Im feeding exactly what they say on the bag, and its like no, thats too much.

Its a good idea to work with your vet to assess your dogs body condition, muscle condition, lifestyle and any concurrent medical conditions and determine how many calories you should be feeding.

You can also consult the tools available online(including on APOPs site)which provide a good estimate of weight ranges and caloric needs by breed and size.

As to food quality, Osborne recommends fresh food including lean protein like chicken, turkey, fish, eggs and tofu, and fiber through fresh vegetables such as Brussels sprouts, broccoli, cauliflower, kale, cabbage and spinach.

While some dog owners hesitate around the idea of feeding people food, this kind of real, fresh food is more nutrient-dense, and more bioavailable than dried, processed food. Those planning to prepare fresh food at home for any length of time should be sure to consult their vet to ensure meals are correctly balanced and contain the necessary vitamins and nutrients.Subscribing to a fresh-food plan makes it easier, and safer, to feed nutritionally balanced meals.

While food is the biggest factor, pet owners should also plan to exercise dogs for a minimum of 20 minutes, twice a day. And be careful with snacks. You can use fresh veggies as healthy treats and avoid processed mystery-ingredient treats and things like pig ears, and bully sticks.

If you dont eat it, neither should your dog, Osborne says.

Obesity

A common problem in dogs

Obesity, or excessive body fat resulting in an overweight condition, is sadly an extremely common and preventable problem affecting our pets, with more and more cases seen every year. In fact, canine obesity is the most common nutritional disorder seen in dogs. As with humans, it's caused by an imbalance of taking in more energy than giving out.

How to know if your dog is overweight

Signs your dog is overweight include:

• owners struggling to see or feel their dog's ribs, spine or waistline
• abdominal sagging
• a bigger, rounder face
• a reluctance to go for walks or lagging behind
• excessive panting
• tiredness
• needing help getting in and out of cars
• a refusal to move or play games

Problems associated with obesity

Vets see these problems all too often, with obese pets posing greater risks from anaesthetic and surgical complications, heat or exercise intolerance, complications from cardio-respiratory disorders, hormone problems, skin disease, cancer and urogenital disorders even early death. Canine obesity may even contribute to tracheal collapse and laryngeal paralysis too.

Common canine problems suffered as a result of obesity include:

• Diabetes - where the pancreas fails to secrete enough insulin in order to regulate blood glucose levels
• Heart disease - caused by high cholesterol levels
• Arthritis - directly affecting mobility, making it even harder for your pet to lose weight

The dangers of fat

Until fairly recently, fatty tissue was thought to be just a relatively lifeless energy store and insulator; but we now know it secretes hormones affecting appetite, inflammation, insulin sensitivity and bodily function, as well as influencing water balance and blood pressure, leading to kidney disease and high blood pressure.

Factors contributing to canine obesity

Excess energy is stored primarily as fat but many other factors also contribute to canine obesity including age, sex, reproductive status, inactivity, owner's decisions on dog's food intake, diet and palatability, environment, lifestyle, and any underlying disease that impairs exercise and results in excessive weight gain. Some breeds appear to have a higher incidence of obesity, indicating that genetics may play a major part, with unneutered adult dogs often weighing less than neutered dogs of the same breed too.

Ways to prevent obesity

If your dog is overweight, then carefully start changing their feeding habits by:

• increasing exercise (e.g. taking more frequent or longer walks, or taking up a canine activity such as agility or flyball)
• looking at the type of food they eat, as well as their intake:
  • create a feeding plan
  • incorporate regular visits to your vet for weight loss advice and to have free weight checks
  • record your success

Diet

Diets rich in protein and fibre but low in fat are typically recommended for weight loss, as it gives the dog the feeling of being full, but also provides them with more energy. Replacing traditional treats with carrot sticks is a great, healthy way to start. Ensure every family member is given their own pet feeding instructions and never leave any food lying around.

When to feed

Divide your dog's daily amount into several meals and try not to feed them too late, as they won't burn many calories when sleeping.

New foods

Remember, when introducing a new food, do it gradually over a seven-day period, mixing new food with the old, and always check the daily recommended amount.

Don't give scraps

Avoid feeding any leftovers or scraps from the table.Always check the daily recommended feeding guide on the packaging and weigh out the daily amount at the beginning of the day. You can then give 'treats' from this amount during the day, so you don't overfeed.

Speak to your vet

When your animal starts to lose weight, you will notice they are happier, more inclined to exercise, and have a lot more energy. So don't hesitate to book an appointment with your vet for advice and a healthy eating plan to help your dog battle the bulge.

Article author

This article was written byMarc Abraham, a vet based in Brighton who regularly appears on UK television.

Think your dog may be affected?

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We are not a veterinary organisation and so we can't give veterinary advice, but if you're worried about any of the issues raised in this article, please contact your local vet practice for further information.

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