How fast can a dog lose weight

By Isabella Storyclaire

last updated September 16, 2024

Contributions sourced from

How Can I Get My Dog to Lose Weight?

_{Image via iStock.com/o_sa}

By Dr. Sarah Wooten

Have you been frustrated because your dog doesnt lose weight, no matter what you do? Obesity in dogs is one of the biggest health concerns that veterinarians and pet guardians battle.

Sometimes, when it comes to weight loss for dogs, the answer is easy: reduce calories, increase exercise, and BOOMthe pounds come off. Other times, it isnt so simple.

If you have had your dog on the diet train and nothing is moving, try these five veterinarian-approved recommendations to tip the scales back toward a healthy weight.

Be Religious About Daily Calorie Limits

If you want to help a dog lose weight, then there are two non-negotiables that are necessary for success: you must have a daily calorie limit that has been calculated, and you must stay under that number.

A cheat day every now and then is okay, but in order to get the fat to burn away, the ins must be less than the outs, and the total daily calorie count matters. This is especially true for small dogseven an extra kibble or two every day or will add up to unhealthy weight.

Not sure what your dogs daily calorie limit should be? The easiest way is to ask your veterinarianmany vets are happy to calculate this number for you. They can also tell you what your dogs ideal weight goal is.

You can also visit Pet Nutrition Alliance and use their online calculator to calculate the calories. Once you have this number, then you will need to divide it by the kcal/cup number that is on your dog food bag. This will be on the back, in the AAFCO nutritional statement. If you cant find it, ask your veterinarian or veterinary technician for helpthey can point it out to you.

Once you divide the total daily calories by the kcal/cup, that will give you the number of 8-ounce cups of food to feed per day. If there is a decimal, round down to the closest measurable number, such as , or . If you feed treats, make sure to include those in the total daily calorie count as well!

No More Doggy Dishwasher

One overlooked source of excessive calories is people food. Yes, feeding dog treats and sharing food is an important part of the bond you share with your dog, but your heartwarming goodies might be sabotaging your weight-loss efforts.

If you feed any people food, include it in the daily calorie count. Dont forget to add calories consumed from licking plates clean! Many people let their dogs lick their plates after they finish eating or while they sit in the dishwasher, but this is where sneaky calories hide, even in BBQ sauce remnants.

Either stop letting your dog wash the dishes, or include it in the daily calorie count.

Super Sleuth Serial Food Sneaking

Do you have kids? Do they drop food? Does your dog snarf up crumbs? This could be a source of excess calories. Do you have grandparents that drop by with dog biscuitsin their pocket? This is also a source of excess calories.

Do you have multiple pets? Is your pup finishing other pets food? This is another source of excess calories.

You may have to do a little sleuthing to see if somebody is secretly feeding your dog extra food or if your dog is a serial food sneaker. People are often surprised at how far their enterprising pooches will go to find food.

It can be challenging to stick to the total daily calorie count when there are multiple people or children feeding one dog. Have a family meeting, decide who is going to feed the dog, and get everyone to agree to not feed extra.

The best practice is to set out what your dog will eat for the day in baggies, and when it is gone for the day, it is gone. No. More. Food.

Utilize a Therapeutic Diet

Food technology has come a long way, especially when it comes to therapeutic diets. In particular, Hills Prescription Diet metabolic weight management dog food has been a miracle product for many dogs that arent losing weight.

If the needle wont budge even though you have cut back calories and increased exercise, try feeding a therapeutic weight control dog food, like Metabolic diet, instead of your dogs regular maintenance diet.

There are ingredients, like L-carnitine, that help ramp up fat burning, and the food still delivers a complete and balanced diet even though calories are restricted. The same cannot be said for feeding restricted amounts of regular dog food.

Have Your Dogs Hormones Checked

Most dogs should be able to reach their weight-loss goals within three to six months.

If you have followed all of these instructions and been religious about the weight-loss program and still arent seeing results, then maybe your dogs hormones are to blame. Just like people, dogs can have hormonal imbalances that lead to weight gain and having difficulty losing weight.

Conditions like Cushings syndrome (hyperadrenocorticism) in dogs and a sluggish thyroid are common hormonal problems that will make it difficult for a dog to lose weight. If you are several months into the weight-loss program and are not seeing results, then schedule an appointment with your veterinarian and ask to have your dogs hormones checked.

If your dog has one of these hormonal problems, prescription pet medicationis available to correct the condition and get your dog back on track to a healthy lifestyle.

Follow these veterinarian-recommended tips, and you should see success with your dogs weight loss.

How Fast Is Too Fast For My Pet To Lose Weight?

Youve already conquered the first steps of determining that your pet is overweight and youve worked with your veterinarian to create a weight loss plan. But now what? How fast can pets safely lose weight and how vigilant do you need to be?

What is the ideal rate of weight loss?

When restricting calories veterinarians follow a very important rule for the desired rate of weight loss. For dogs this is 1-2% of their total body weight per week. For cats this is 0.5-2% of their body weight per week. So, for example, if you have a 100 lb Labrador Retriever, he can safely lose 1 to 2 lbs per week. If you have a 20 lb cat, she can lose 0.2-0.4 lbs (or about 4 oz) per week. Its also ok to lose less than that per week, but your weight loss plan will just take longer (and you wont see the benefits so quickly!)

What if I just want to get the weight off really fast?

It is very important to follow these guidelines because health problems can arise if pets lose too much weight too quickly, such as nutritional deficiencies, undesirable behavior like getting into the trash or acting out, and serious illnesses. To prevent these illnesses or other problems from occurring, your veterinarian will help you determine what amount of calories your pet needs and will adjust that based on follow up weigh ins to make sure you stay in the safe range of weight loss.

Ive heard cats can get sick if they dont eat enough?

This is true. If cats lose too much weight too quickly they can develop fatty liver disease (called hepatic lipidosis). Fatty liver disease occurs when the body breaks down too much fat too quickly and the liver cannot process the fat fast enough. This causes the fat to be stored in and around the liver which leads to decreased liver function or even liver failure. When this happens, you may notice your cat is not acting right or has a yellow color, or jaundice, in the white of his or her eyes or in their skin. This disease can be fatal if not diagnosed and treated aggressively.

Why do I need to work with my vet? What cant I just feed less of the food hes currently getting?

Another reason veterinarians select diets and monitor rates of weight loss carefully is because manufacturers balance essential nutrients in the food according to the caloric content of the food. This means that when you decrease the amount and calories that are fed, the amount of essential nutrients is decreased as well. If you restrict a food that wasnt meant to be fed in smaller amounts, you can put your pet at risk of nutritional deficiencies.

Written in conjunction with veterinary student, Sasha Santiago.

Dr. Deborah Linder, a board-certified veterinary nutritionist, is the head of the Tufts Obesity Clinic for Animals and has had articles appear in Eating Well, the Boston Globe, AARP, SHAPE, and XM Sirius Radio Doctor Channel. She has spoken at national and international conferences and a Capitol Hillbriefing, and is an expert in pet obesity, nutrition communication, and in the human-animal bond.

Want to read more information on feeding your pet?

Subscribe to always know when we add new material!

8 Ways to Help Your Overweight Dog

Most of the time, its a joy to share things with our dogs. Unfortunately, we share bad habits, too. It turns out our dogs are just as prone to one of our most common health problems obesity.

A few extra pounds on your pup can have serious health implications, putting your dog at risk of experiencing a wide range of diseases and conditions, including a reduced life expectancy. Added weight can also impact your dogs quality of life by affecting their mobility, energy for play, and overall mood.

As in humans, we now recognize obesity as the most important medical disease that affects our companion animals, says Dr. Alex German of the University of Liverpool/Royal Canin Weight Management Clinic.

Talk to your veterinarian for information and guidance when it comes to your dogs diet and potential weight-loss plan. In the meantime, here are eight ways you can start to help your overweight dog.

1. Know Your Dogs Healthy Weight

Different breeds and ages have different healthy weight ranges. Check what the AKC breed standard says about the ideal weight for your breed. If your dog is beyond that range, consult your vet. Its best to get a professionals help as you assess your pets accurate weight, body condition, and diet, determine if the dog would benefit from a weight-loss plan, and set a target weight to work toward.

Note that some dogs may be shorter or taller than their breed standard requirements, so the ideal weight would be within those dogs breed standard height descriptions.

2. Keep Your Dog Active

Just like humans, exercise is crucial when it comes to helping your overweight dog get healthy. Increasing your dogs activity helps burn off energy (and calories consumed).

Dont panic! Exercising your pet doesnt have to mean running marathons or going for long hikes. Regular walks and the chance to run and play in a safe off-leash environment are good forms of exercise for your dog. Participating in AKC FIT DOG is a great way for you to get moving with your pet.

Even creating a stimulating indoor environment that gets your dog moving can help. Remember, different breeds need different amounts of exercise, so consult your vet, breeder, or your dogs breed standard for guidance on how much activity is recommended.

3. Know the Difference Between Begging and Hunger

Begging is not always about wanting more to eat. In fact, its often a ploy to get more attention. (And, when its rewarded, you reinforce and encourage the behavior to continue.) If your dog begs, dont assume that theyre hungry. Trust your instincts and keep track of when the last mealtime was.

If your dog is prone to begging and youre prone to giving in to those puppy dog eyes, talk to your vet about a high-protein diet with a blend of fibers to help manage your dogs appetite and reduce their voluntary food intake. That way, you can feed your dog while knowing that they will feel fuller and stay satisfied longer.

4. Limit Treats and Table Scraps

Even when our dogs dont beg, many of us volunteer too many treats and table scraps. Dogs dont need to share everything we eat. Think of treats and scraps for your pet as you would candy for children to help you keep them to a minimum.

If you use treats for training, look for low-calorie, low-fat options and limit the amount. As an alternative, remember that clickers work great for reinforcement, and theyve got zero calories! After all, a few extra pounds can make a huge difference for dogs, who are much smaller than we are. (Even those large breeds!) So, concentrate on a healthy diet, and curb the urge to treat them with more.

5. Measure and Monitor

Once your vet has designed a weight-management plan, you should have a clear idea of how much your dog should eat at each meal. Be vigilant. Dont free-feed or eyeball how much you scoop out. Instead, use an appropriate measuring device to ensure youre managing portion control.

6. Customize Your Dogs Diet

Not all weight-loss foods are created equal, so its important to match your dog with a nutrition plan that directly addresses their specific needs. Look for a brand that offers dog food designed for your pets own issues, whether its weight management, sensitive stomachs, or something else entirely.

7. Dont Go Cold Turkey

No, this isnt about feeding your dog leftovers. Its important to ease your dog into a new diet, rather than abruptly changing what they eat. Always consult with your vet before starting your dog on a new regimen. A good guideline is to plan for at least a seven-day transition when starting a new type of food. Heres what that could look like:

On the first two days, feed your dog 75% of their old food and 25% of the new food.
On the third and fourth days, increase the percentage of new food to 50%, with the other 50% being the old food.
On the fifth and sixth days, feed your dog 75% of the new food, and 25% of the old food.
By the seventh day, you should be up to 100% of the new food.

8. Stick With It

Like human, like pet! Studies have shown that after successfully losing weight, approximately half of all dogs regained weight. The good news is that researchers also found that rebound weight gain was significantly reduced by keeping dogs on a weight-loss diet, even after achieving their target weight. So, now that youve done the hard work and transitioned to a new formula thats working, stick with it! As with so many things in our dogs worlds, consistency is the key.