Help Your Dog Lose Weight

Nov 23, 2022 | Dogs

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How to Help Your Dog Lose Weight: A Vet-Backed Plan for 2026

How do you help your dog lose weight? Start with a vet visit to check body condition and rule out medical causes. Then feed weighed, calorie-controlled meals, keep treats under 10% of daily calories, add daily activity and weigh in regularly. A safe pace is 1% to 2% of body weight per week.

Extra pounds are common. The Association for Pet Obesity Prevention (APOP) found that 59% of US dogs were overweight or obese in its 2022 survey. The good news: a steady plan can help your dog lose weight safely. Below, you’ll learn how to check your dog’s shape, set a target, choose food, add exercise and avoid mistakes that stall progress.

Key takeaways

  • APOP’s 2022 survey classed 59% of US dogs as overweight or obese.
  • VCA Animal Hospitals defines overweight as 10% to 20% above ideal weight, and obese as more than 20% above.
  • AAHA weight guidelines target a loss of 1% to 2% of body weight per week for dogs.
  • Treats should stay under 10% of daily calories, according to WSAVA.
  • In one study, cup-measured portions ranged from 18% under to 80% over the target, so a kitchen scale is more accurate.
  • In a Purina study, Labradors fed 25% fewer calories lived a median 1.8 years longer.

Is My Dog Overweight? Check Before You Help Your Dog Lose Weight

Before you help your dog lose weight, confirm the problem. Body shape tells you more than the scale, so vets use a body condition score (BCS). According to the University of Guelph’s Pet Nutrition team, the standard scale runs from 1 to 9, and a score of 4 or 5 is healthy for dogs. Each point above 5 adds roughly 10% to 15% more body fat.

Body condition (1–9) What you see and feel What it means
1–3 Ribs, spine and hip bones easy to see; little fat Too thin; see your vet
4–5 Ribs easy to feel under a thin fat layer; clear waist and hourglass shape from above Ideal
6–7 Ribs hard to feel; waist faint or missing Overweight
8–9 Ribs buried under fat; belly sags; fat over the spine and tail base Obese

Based on the 9-point body condition score described by the University of Guelph and VCA Animal Hospitals.

To check at home, stand over your dog and look for a waist behind the ribs. Then run your flat palms along the chest. The Guelph team suggests imagining the chest as a clock face, with the spine at 12 and the breastbone at 6, and feeling at 10 and 2 o’clock. You should feel ribs without pressing hard.

Owners often miss the signs. In APOP’s 2024 survey, 35% of US dog owners described their dog as overweight or obese, up from 17% in 2023, still well below APOP’s 59% figure from 2022. If you think “my dog needs to lose weight,” you are probably right.

Owner walking a dog on a leash as part of a plan to help your dog lose weight
Daily leash walks are one of the simplest ways to burn extra calories with your dog. Photo: Megan Dujardin / Unsplash.

Why It Pays to Help Your Dog Lose Weight

Fat is not just stored energy. VCA Animal Hospitals describes obesity as a chronic, low-grade inflammatory condition, because fat tissue releases inflammatory hormones. VCA links extra weight to higher risk of:

  • Osteoarthritis and faster joint wear
  • Diabetes mellitus
  • Heart disease and high blood pressure
  • Some cancers and bladder stones
  • Complications during anesthesia

Strong evidence comes from a lifelong Purina study of 48 Labrador retrievers. As reported by the University of Pennsylvania, dogs fed 25% fewer calories than their littermates had a median lifespan of 13 years, compared with 11.2 years for the others. That is 1.8 extra years from feeding less.

Weight can also be a symptom. VCA notes that obesity may point to hypothyroidism or Cushing’s disease, so see your vet before you help your dog lose weight, especially if the gain was sudden.

How to Help Your Dog Lose Weight: 8 Steps

Whether you searched how to help dog lose weight or how to get a dog to lose weight, the answer is a plan, not a crash diet. These steps follow the AAHA Weight Management Guidelines and VCA advice.

  1. Book a vet exam. Get a body condition score, a target weight and any needed tests.
  2. Find the daily calorie goal. Your vet sets this from the target weight; the Pet Nutrition Alliance calorie calculator offers a starting estimate to discuss.
  3. Choose the right food. VCA warns that feeding less of the current food can leave a dog short on vitamins and minerals. Ask about a calorie-restricted weight loss diet.
  4. Weigh every meal. Use a kitchen scale in grams instead of a scoop.
  5. Set fixed mealtimes. Feed measured meals at set times instead of leaving food out all day.
  6. Count every treat. Keep treats under 10% of daily calories and cut the main meal to match.
  7. Move more each day. Build up walks and play slowly.
  8. Weigh in and adjust. Track progress every two to four weeks and update the plan with your vet.

How fast should a dog lose weight?

AAHA’s guidelines set a goal of 1% to 2% of body weight per week for dogs. For a 60-pound dog, that is about 0.6 to 1.2 pounds a week (our calculation). AAHA suggests a check-in after the first week, then every two weeks until the rate is steady. If loss is slower than planned and your dog is following the diet, the guidelines allow a 10% to 20% calorie cut or more activity.

Helping your dog lose weight with the whole family

Knowing how to help a dog lose weight is one thing; getting everyone to follow it is another. Agree on one daily treat allowance, keep it in a labeled jar and log meals in a shared note. That makes helping your dog lose weight a team job.

Food and Treats That Help Your Dog Lose Weight

When owners ask how to make a dog lose weight, the first fix is usually in the bowl, since vet weight plans start with calories.

Weigh food instead of scooping it

Scoops are less exact than they look. A study by A.J. German and colleagues in the Journal of Animal Physiology and Animal Nutrition, summarized by Petfood Industry, found that people measuring dry food with cups ranged from 18% under to 80% over the intended amount. A digital kitchen scale removes that guesswork.

Choosing a weight loss dog food

Therapeutic diets are designed so a dog eats fewer calories without falling short on nutrients, and VCA calls a vet-chosen, restricted-calorie diet the most efficient approach. Over-the-counter healthy weight dog food or weight management dog food varies a lot. A 2010 Tufts study of 44 dog diets found dry options ranging from 217 to 440 kcal per cup, and for most diets the label feeding directions would not produce weight loss.

Option Best for Watch out for
Prescription weight loss diet Overweight or obese dogs on a vet plan Needs a vet’s approval and follow-up
Over-the-counter “healthy weight” food Keeping a near-ideal dog lean 217–440 kcal per cup, per Tufts; check the label
Less of the current food Small cuts only, with vet advice Large cuts may leave nutrient gaps, says VCA
Home-cooked diet Dogs with special needs Should be formulated by a veterinary nutritionist

Based on VCA Animal Hospitals guidance and Tufts University research.

Looking for vet recommended dog food for weight loss? Your vet can name diets that suit your dog’s age and health. To compare brands, see our pet food center and our guide to raw dog food diet pros and cons.

Smarter treats

The World Small Animal Veterinary Association (WSAVA) advises keeping treats under 10% of daily calories. The AVMA adds that you should trim regular food by about the same calories, and flags table scraps as hidden calories. Break treats into small pieces and swap some for play or praise.

WSAVA also lists foods dogs should never get, including chocolate, grapes and raisins, onions, garlic and xylitol. Check every “diet snack” label for xylitol before you share it.

Pet Care Tip: Each morning, weigh out the full day’s food into one container. Take training treats from it, not a separate bag. When it is empty, your dog has eaten for the day.

Exercise to Help Your Dog Lose Weight Safely

When people ask how to help dogs lose weight, exercise is the second half of the answer. The AVMA recommends at least 30 minutes of activity a day for dogs; build up to it slowly if your dog is older or sore. At Texas A&M’s College of Veterinary Medicine, Dr. Lori Teller suggests starting slowly with a reluctant dog and walking new routes to keep it mentally interested.

  • Walks: Start with short, easy walks and add a few minutes each week.
  • Swimming: Texas A&M lists it as an option; ask your vet if it suits your dog.
  • Fetch and tug: Short play sessions burn energy.
  • Food puzzles: A puzzle toy slows eating and adds movement.

Stop and rest if your dog pants heavily, lags or limps, and skip hard exercise in hot weather. For dogs with arthritis, VCA notes physical rehabilitation can support weight loss. Exercise works best to help your dog lose weight when paired with diet changes.

When to call a vet right away: Get urgent care if your dog collapses during exercise, struggles to breathe, has gums that look pale, blue or gray, or shows signs of heatstroke such as heavy panting, drooling and wobbling. Also call if your dog loses weight quickly without a diet change. If your vet is closed, call a 24/7 emergency animal hospital.

7 questions to ask your vet

  1. What is my dog’s body condition score and target weight?
  2. Could a medical problem be causing the weight gain?
  3. How many calories should my dog eat each day?
  4. Which food do you recommend for weight loss?
  5. How many treats can I give, and which kinds?
  6. What exercise is safe for my dog’s age and joints?
  7. How often should we weigh in?

Example Scenario (illustrative)

Marisol in Tucson learns that her beagle, Biscuit, scores 7 out of 9. Her vet rules out thyroid problems and prescribes a weight loss diet. Marisol weighs each meal, uses one daily treat jar and adds a 15-minute evening walk. At rechecks, Biscuit loses about 1% of her weight a week.

Myth Fact
“Just feed half as much.” Big cuts to regular food can cause nutrient gaps; use a plan your vet approves.
“A long walk cancels out treats.” Exercise helps, but VCA and AAHA plans start with controlled calories.
“The bag tells me how much to feed.” The AVMA says label amounts may not suit your dog, and Tufts found most weight-loss labels would not produce loss.
“A chubby dog is a happy dog.” Lean Labradors in the Purina study lived a median 1.8 years longer.

What most owners get wrong

A common slip is going back to old habits once the dog reaches its goal. AAHA advises monthly checks after the goal is reached and adjusting calories by about 10% if weight keeps falling. Keep weighing meals and treats for life.

Help Your Dog Lose Weight: FAQs

How long does it take for a dog to lose weight?

At AAHA’s target of 1% to 2% a week, a dog that is 10% overweight may need roughly 5 to 10 weeks (our estimate). Heavier dogs need longer.

How can I tell if my dog is overweight?

You should feel the ribs easily and see a waist from above. A score above 5 on the 9-point body condition scale means extra weight.

Can I just feed my dog less?

Small cuts may be fine, but VCA warns large cuts to regular food can cause nutrient shortfalls. The safest way to help your dog lose weight is a vet-approved diet.

How many treats can an overweight dog have?

Keep treats under 10% of daily calories, per WSAVA, and reduce meals by the same amount.

How much exercise does an overweight dog need?

The AVMA recommends at least 30 minutes a day for dogs. Build up slowly and follow your vet’s advice.

Why is my dog not losing weight?

Hidden snacks, scooped portions or a medical issue such as hypothyroidism are common reasons. Weigh food, log treats and see your vet.

Is weight loss dog food necessary?

Not always, but VCA calls a vet-chosen, restricted-calorie diet the most efficient approach for obese dogs.

Final Verdict: Help Your Dog Lose Weight Safely

To help your dog lose weight, start with a vet exam, set a target and feed weighed, calorie-controlled meals. Keep treats under 10% of calories, add daily activity and aim for 1% to 2% loss a week. Then keep the same habits so the weight stays off.

Your next steps

  1. Score your dog’s body condition tonight and book a vet visit.
  2. Buy a kitchen scale and start weighing every meal.
  3. Explore more feeding guides in our pet food center and Dogs section.

Share your dog’s progress on our Pets Store Home Facebook page.

About the author: Written and reviewed by the Pets Store Home Editorial Team, pet owners who check every guide against trusted sources. This guide is general information, not a substitute for your veterinarian’s advice.

How we checked this guide: Obesity rates come from APOP’s 2022 and 2024 surveys. Body condition scoring comes from the University of Guelph and VCA Animal Hospitals. Weight loss rates and rechecks come from the AAHA Weight Management Guidelines.

Treat and exercise guidance comes from WSAVA, the AVMA and Texas A&M. Lifespan data comes from the Purina Labrador study, portion accuracy from German et al., and diet calorie data from Tufts. This guide was fully rewritten in October 2026. We review it every 12 months.

Last reviewed: October 2026.