Is My Dog Overweight?

If you have to press to feel your dog’s ribs, can’t see a waist from above and the tummy doesn’t tuck up from the side, your dog is probably overweight. You can check in about 30 seconds with your hands.

You’re far from alone: vet surveys suggest more than half of pet dogs in the US are overweight or obese, and most of their owners think their dog is a normal weight.

Want a quick answer? Take our free Is My Dog Overweight? 30-second quiz.

The 3 quick checks

1. The rib check

Put your flat hands on your dog’s sides and run them along the ribcage.

• Ideal: you can feel each rib easily, with a thin layer of fat — like the knuckles on the back of your hand.
• Overweight: you have to press to find the ribs — like feeling the bones through your palm.
• Obese: you can’t really feel the ribs at all.

2. The waist check (from above)

Stand over your dog and look down.

• Ideal: a clear waist behind the ribs, like a gentle hourglass.
• Overweight: the waist is hard to see; the body looks like a tube.
• Obese: the back is broad and the sides bulge out.

3. The tummy check (from the side)

• Ideal: the belly slopes up from the chest towards the back legs (a “tummy tuck”).
• Overweight: the tummy line is flat.
• Obese: the belly hangs down or sways when they walk.

Vets turn these checks into a body condition score from 1 (very thin) to 9 (obese). The ideal is around 4–5.

Where your dog lands on the 1–9 scale

This combines the WSAVA body condition chart with the 2022 vet-assessed survey from the Association for Pet Obesity Prevention:

Score	What you find	Share of US dogs (APOP 2022)
1–3: under ideal	Ribs, spine tops and hip bones easy to see; little or no fat to feel	under 2%
4–5: ideal	Ribs easy to feel under a thin layer; waist visible from above; tummy tucks up	40%
6–7: overweight	Ribs felt only with pressure; fat over the lower back and tail base; waist faint or gone	37%
8–9: obese	Ribs not felt without firm pressure; no waist; belly hangs; fat on neck and legs	22%

So about 59% of dogs scored 6–9. The survey also asked owners first: 36% of dog owners whose dog scored 6–9 called their dog’s body “normal.” If your gut says “he’s just big-boned,” double-check with your hands.

On the scale, VCA Animal Hospitals defines overweight as 10–20% above ideal weight and obese as more than 20% above. For a dog whose ideal is 50 lb, that’s 55–60 lb for overweight and over 60 lb for obese.

Why a few extra pounds matter

For a small dog, 2 extra pounds is like a person carrying 15–20 extra pounds. Extra weight is linked to:

• Joint pain and arthritis
• Breathing problems — especially in flat-faced breeds like the French Bulldog
• Diabetes, skin problems and heat intolerance
• Less energy and a shorter life

The good news: weight is one of the most fixable health problems, and dogs don’t raid the fridge on their own — we’re in charge of the bowl.

A simple plan to help your dog slim down

Step 1: See your vet

Your vet can confirm the body condition score, set a target weight, and rule out medical causes like an underactive thyroid. Ask how much weight to lose per week (usually 1–2% of body weight).

Step 2: Measure every meal

Use a real measuring cup or, better, a kitchen scale. A “scoop” is often much bigger than a cup. Work out the right amount with our dog food portion calculator using your dog’s ideal weight, and read how much to feed your dog.

Step 3: Cut treats first

Treats and table scraps are the hidden calories. Keep them under 10% of daily calories and swap to low-calorie options: green beans, carrot coins, cucumber or blueberries. See 15 human foods dogs can eat. Use part of your dog’s daily kibble as training rewards.

Step 4: Move a little more

Add 10 minutes to a daily walk, try sniff walks, fetch or swimming (if your dog likes it and it’s safe). Start slowly with heavy or older dogs.

Step 5: Slow down fast eaters

Puzzle feeders, snuffle mats and slow-feeder bowls make meals last longer and keep your dog’s brain busy.

Step 6: Check again every 2–4 weeks

Weigh your dog and repeat the three checks. Adjust portions by about 10% if nothing changes. Slow and steady wins.

A worked case: a 72 lb Lab with a 60 lb goal

Here’s the math for one dog, so you can follow it with your own numbers. Say your vet scores your neutered Labrador at 7 out of 9, weighs him at 72 lb and sets a target of 60 lb.

How far over is he? 72 ÷ 60 = 1.20, so he’s 20% above ideal — right on VCA’s line between overweight and obese.

Daily calories. A common starting point for weight loss is the resting energy requirement at the ideal weight — the “needs to lose weight” setting in our dog food calculator:

• 60 lb ÷ 2.2046 = 27.2 kg
• 27.2^0.75 ≈ 11.9
• 70 × 11.9 ≈ 834 kcal a day

Cups. Keep 10% (about 83 kcal) for treats, leaving about 751 kcal for food. With a kibble at 380 kcal per cup: 751 ÷ 380 = 1.98 cups a day, so 1 level cup per meal, twice a day.

The catch. By the same formula, maintenance for a neutered 72 lb dog is about 1,530 kcal (RER at 72 lb × 1.6). If your bag’s guide for 72 lb is in that range, 834 kcal is only about 55% of it. Tufts’ Petfoodology team advises that once you’re feeding less than 75% of a food’s label amount, you should switch to a lower-calorie or weight-management diet so the dog doesn’t fall short on nutrients. For a dog like this, that usually means a therapeutic weight-loss food from your vet, not just a smaller scoop. APOP’s 2022 survey found only about 1 in 5 owners of overweight pets had tried one.

The timeline. Losing 1% of current body weight per week:

Week	Expected weight
0	72.0 lb
4	69.2 lb
8	66.4 lb
12	63.8 lb
16	61.3 lb
19	59.5 lb

That’s roughly 4–5 months at 1% a week, or about 13 weeks at 1.5%. If you hit a week with no change, don’t panic; look at the 4-week trend.

Treats that fit the budget

That Lab’s 83 kcal treat allowance disappears fast with a spoon of peanut butter (around 90–100 kcal per tablespoon). These swaps from Tufts’ treat list are each about 15–20 kcal:

Treat	Amount for ~15 kcal
Baby carrots	4 (40 g)
Green beans	8 beans (45 g)
Cucumber	1 cup of slices (100 g)
Blueberries	20 (25 g)
Apple, chopped (no seeds or core)	¼ cup (30 g)
Plain canned pumpkin, no salt	2 tablespoons (30 g)
Boiled chicken breast, diced	1 tablespoon (9 g)

So the same 83 kcal buys either one spoon of peanut butter or roughly 5 portions from this table, spread through the day. Cut everything into small pieces; dogs care more about how many treats they get than how big they are.

If the scale won’t move

Four weeks with no loss? Work through this list before cutting food again:

1. Check the cup. Is everyone using the same measuring cup, filled level, or a scale?
2. Audit the house. Ask each person what they give. Grandparents, kids and “just the crusts” all count.
3. Count the chews. Dental sticks and pill pockets belong in the treat budget.
4. Look for stolen food. Cat bowls, toddler high chairs and backyard fruit can quietly erase a deficit.
5. Weigh on the same scale, at the same time of day, so you compare like with like.
6. Then cut 10% and recheck in 2–4 weeks, or ask your vet to reassess.

Common mistakes

• Feeding the bag’s amount for the current weight instead of the ideal weight
• Everyone in the family giving treats — agree on a treat budget
• Crash dieting — big, sudden cuts aren’t safe
• Forgetting chews and dental sticks — many are high in calories

Myths that keep dogs heavy

• “A bit of extra weight means a happy dog.” Reality: VCA lists diabetes, osteoarthritis, heart disease, high blood pressure and anesthetic complications among the risks of obesity. Food is love, but so is walking without sore joints.
• “More walks will fix it.” Reality: exercise helps, but portions do most of the work. Calorie math usually decides whether the scale moves.
• “He’s a Lab, they’re all like that.” Reality: food motivation runs strong in some breeds, but the WSAVA chart applies to every dog. A Lab at a score of 5 still has a waist. See our Labrador care guide.
• “She only eats a little, so it can’t be food.” Reality: a 10 lb dog needs only about 220 kcal a day at rest. One tablespoon of peanut butter (around 90–100 kcal) is close to half of that.
• “Neutering made him fat.” Reality: neutered dogs need fewer calories — about 11% less by the standard formulas — so the old portion becomes too much. Adjust the bowl and the weight is manageable.

When to call the vet right away

If your dog gains or loses weight quickly without a change in food, is drinking or peeing a lot more, seems tired, or has a swollen belly, see your vet promptly. These can be signs of a medical problem, not just extra food.

Two hormone conditions are common culprits:

• Hypothyroidism (an underactive thyroid): VCA lists weight gain without a bigger appetite, tiredness, feeling the cold easily and a dry, dull or thinning coat among the usual signs. A blood test checks thyroid levels.
• Cushing’s disease (too much cortisol): the most common signs, according to VCA, are a bigger appetite, more drinking and more peeing, often with a pot-bellied look, panting and thin skin.

A dog that eats normally, follows a measured plan for 2–3 months and still gains is worth a checkup before any further food cuts.