Alex Chen | Formulator’s Lab Notes

I’m Alex Chen—Lead Formulator & Grooming Specialist. I split my work between San Francisco grooming tables, where I put my hands on real dogs every week, and Taipei R&D labs, where we obsess over measurement, systems, and repeatable results.

And I’ll say this gently:

A lot of dog obesity is hiding in plain sight.

Not because pet parents don’t care. Usually, it’s the opposite. The dog is loved, fed, treated, comforted, rewarded, and included in everything. But slowly—one extra biscuit, one oversized scoop, one “just a little chicken” at a time—the body changes.

Then one day the dog has no waist, pants after short walks, struggles to jump into the car, and the vet says, “We should talk about weight.”

That conversation can feel personal. I get it.

But weight is not a moral failure. It is a measurable health factor.

And once we measure it clearly, we can improve it.

Data doesn’t lie, but your dog’s body tells the real story.

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Quick Answer: How Do You Know If Your Dog Is Overweight?

Your dog may be overweight if you cannot easily feel their ribs, they have little or no visible waist from above, their belly does not tuck upward from the side, they tire quickly, pant heavily with mild exercise, or have fat deposits around the neck, chest, spine, or tail base.

The most reliable home method is the Body Condition Score, often using a 1–9 scale:

• 4–5 out of 9: ideal body condition
• 6 out of 9: slightly overweight
• 7–9 out of 9: overweight to obese

A simple home check:

1. Rib test: You should feel ribs with light pressure, like feeling knuckles under a thin blanket.
2. Waist test: From above, your dog should have an hourglass shape behind the ribs.
3. Side tuck test: From the side, the belly should rise slightly toward the hips.

If you are unsure, ask your veterinarian for a target weight and body condition score.

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Why Dog Obesity Matters

I know some people say, “But chunky dogs are cute.”

I understand the feeling. My senior Shiba, Bento, can look very convincing when he wants extra food. He has the eyes of a retired judge and the appetite of a raccoon.

But extra weight is not just cosmetic.

Dog obesity is associated with higher risk of:

• Arthritis and joint pain
• Cruciate ligament injury
• Diabetes
• Breathing difficulty
• Heat intolerance
• Reduced stamina
• Skin fold irritation
• Poor grooming ability
• Higher anesthesia risk
• Lower quality of life
• Shorter lifespan
• Worsened heart or respiratory conditions

Even a small amount of excess weight can matter, especially for small dogs.

A 5-pound gain on a Labrador is one thing. A 5-pound gain on a Dachshund or Chihuahua is a very different mechanical load.

Let’s look at the physics for a second: tiny frame, big burden.

That’s where obesity gets unfair to the joints.

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Is My Dog Overweight or Just Fluffy?

This is one of the most common grooming-room questions.

Long-haired breeds can hide weight very well. So can dense-coated dogs like Huskies, Shibas, Pomeranians, Bernese Mountain Dogs, and Golden Retrievers.

Do not judge by fur.

Use your hands.

The Coat Illusion Test

Run both hands along your dog’s ribcage, spine, shoulders, and hips.

You are checking the body under the coat, not the silhouette of the fur.

A fluffy dog may look round but feel lean.

A short-haired dog may look sleek but carry fat around the ribs and waist.

This is why groomers often notice weight changes early. When the coat is wet during bathing, the truth appears. Fur lies. Water tells the truth.

Very Ding-Jin—頂真. Meticulous, but necessary.

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The Body Condition Score: The Best Way to Judge Dog Weight at Home

Most veterinarians use a Body Condition Score, or BCS, to evaluate fat coverage and body shape.

The 9-point scale is common.

Body Condition Score	What It Usually Means
1–3/9	Underweight
4–5/9	Ideal
6/9	Slightly overweight
7/9	Overweight
8–9/9	Obese

Ideal Dog Body Condition: What You Should See and Feel

An ideal-weight dog usually has:

• Ribs you can feel easily with light pressure
• A visible waist when viewed from above
• A belly tuck when viewed from the side
• Minimal fat over the spine and tail base
• Good movement and stamina
• No heavy fat pads over the chest or hips

The ribs should not be sharply visible in most breeds, but they should be easy to find.

I tell clients: imagine your dog’s ribs are like the back of your hand. You can feel the bones, but they are not sticking out dramatically.

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The Alex Chen “Rib–Clock–Waist” Test

Most articles stop at “feel the ribs.”

Useful, but not enough.

Here’s my more practical home check. I call it the Rib–Clock–Waist Test.

1. Rib: Can You Feel the Ribs Without Digging?

Place your hands gently on both sides of your dog’s ribcage.

Ask:

• Can I feel each rib with light pressure?
• Do I need to press hard?
• Is there a soft fat layer blocking the ribs?

If you have to search for ribs like you’re looking for lost keys in a couch, your dog is likely carrying extra weight.

2. Clock: Where Is the Body Shape From Above?

Stand over your dog and look down.

Imagine your dog’s body as an analog clock:

• Chest and ribs are around the front half
• Waist should narrow slightly behind the ribs
• Hips should not disappear into a rectangle

If your dog looks more like a coffee table than an hourglass, that is a clue.

3. Waist: Does the Belly Tuck Up From the Side?

Look from the side.

Behind the ribcage, the abdomen should rise slightly toward the back legs.

If the belly line hangs straight, droops, or swings, your dog may be overweight—or there may be a medical issue such as fluid accumulation, hormonal disease, or pregnancy.

When in doubt, call your vet.

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Common Signs Your Dog May Be Overweight

Your dog may be overweight if you notice:

• No visible waist
• Ribs are hard to feel
• Fat pads near the tail base
• Broad, flat back
• Heavy neck or chest fat
• Low stamina
• Panting after mild activity
• Difficulty jumping onto furniture or into the car
• Slower walking pace
• Reluctance to exercise
• Trouble grooming themselves
• Heat intolerance
• Snoring or heavier breathing
• Skin irritation in folds
• Harness or collar becoming tighter

One sign alone does not prove obesity. But several signs together are worth taking seriously.

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Dog Weight Chart: Why Breed Standards Are Not Enough

Many pet parents search for “ideal weight for Labrador” or “normal weight for French Bulldog.”

Breed charts can help, but they are imperfect.

Why?

Because dogs vary in:

• Frame size
• Muscle mass
• Sex
• Age
• Neuter status
• Breed line
• Activity level
• Medical history
• Body composition

Two dogs can weigh the same and look completely different.

A muscular 70-pound dog may be ideal. A soft 70-pound dog may be overweight.

So instead of relying only on weight charts, combine:

• Scale weight
• Body Condition Score
• Muscle condition
• Veterinary exam
• Trend over time

The scale gives a number. The body condition tells the meaning.

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Why Do Dogs Become Overweight?

Dog obesity usually comes from a long-term calorie imbalance, but the causes are often more complicated than “too much food.”

Common contributors include:

1. Overfeeding

This includes:

• Scooping without measuring
• Following bag guidelines without adjusting
• Multiple family members feeding
• Free-feeding
• Large portions after neutering
• Feeding based on appetite instead of body condition

Food bag recommendations are starting points, not sacred law.

Many dogs need less than the bag suggests.

2. Too Many Treats

Treat calories add up fast.

Common hidden calorie sources:

• Training treats
• Dental chews
• Peanut butter
• Cheese
• Table scraps
• Bully sticks
• Pig ears
• Biscuits
• “Just a little” chicken skin
• Kids dropping food

The “just one treat” problem becomes serious when it happens 8 times a day.

3. Low Exercise

Dogs need movement, but exercise needs vary by breed, age, and health.

A young Border Collie and a senior Bulldog do not need the same plan.

Still, most dogs benefit from consistent daily activity.

4. Neutering or Spaying

After spaying or neutering, some dogs need fewer calories due to metabolic and hormonal changes.

This is not a reason to avoid sterilization. It is a reason to adjust portions afterward.

5. Age

Senior dogs may lose muscle and become less active.

If food intake stays the same while movement decreases, weight gain happens slowly.

6. Medical Conditions

Some medical conditions can contribute to weight gain or make weight loss harder, including:

• Hypothyroidism
• Cushing’s disease
• Arthritis
• Mobility-limiting injuries
• Certain medications
• Hormonal changes

If your dog gains weight quickly without obvious diet changes, talk to your veterinarian.

7. Human Emotion

This one is real.

We feed dogs because we love them.

Food becomes:

• Apology
• Celebration
• Comfort
• Routine
• Bonding
• Guilt relief

I’m not judging. I’ve done it too.

But your dog does not need every expression of love to be edible.

Sometimes the better gift is a walk, a sniff session, a massage, or a clean ear that doesn’t itch.

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How Much Weight Should a Dog Lose?

Safe weight loss should be gradual.

Many veterinary weight loss plans aim for about 1–2% of body weight per week, depending on the dog’s health and veterinarian guidance.

For example, if a dog weighs 50 pounds:

$50\times 0.01=0.5$

So 1% weekly weight loss is about 0.5 pounds per week.

At 2%:

$50\times 0.02=1.0$

That means a 50-pound dog may safely lose around 0.5 to 1 pound per week under an appropriate plan.

But please do not crash diet your dog.

Fast weight loss can be unsafe, and severe calorie restriction may cause nutrient imbalance, hunger, behavior issues, or medical problems.

Cats are even more sensitive to rapid weight loss, but dogs still need a thoughtful plan.

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How to Help Your Dog Lose Weight Safely

Here is the practical plan I recommend.

Not flashy. Effective.

Step 1: Visit Your Veterinarian First

Before starting a weight loss plan, ask your vet for:

• Current weight
• Body Condition Score
• Ideal target weight
• Medical screening if needed
• Arthritis or pain assessment
• Daily calorie target
• Safe exercise recommendations
• Recheck schedule

This matters especially if your dog is senior, obese, diabetic, arthritic, has heart disease, has breathing issues, or is on medication.

Weight loss is healthcare. Treat it that way.

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Step 2: Measure Food With a Scale, Not a Scoop

This is my biggest pet peeve.

Cups are inaccurate. Scoops are worse. “A handful” is chaos pretending to be a measurement.

Use a kitchen gram scale.

Why?

Because kibble density varies. One cup of one food may not equal one cup of another food in calories.

Measure by grams if possible.

A 10% over-scoop every day does not look dramatic. Over months, it becomes body fat.

That is the quiet math of obesity.

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Step 3: Know Your Dog’s Daily Calories

Ask your vet for your dog’s target daily calories.

If you need a rough conversation starting point, veterinarians often use Resting Energy Requirement, or RER:

$RER=70\times bodyweightink{g}^{0.75}$

Then the weight loss calorie target is adjusted based on ideal weight, current health, and veterinarian guidance.

Do not use online calorie formulas blindly for obese dogs, puppies, pregnant dogs, or dogs with disease.

But do learn this principle:

Weight loss is easier when calories are counted, not guessed.

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Step 4: Use the 10% Treat Rule

Treats should generally make up no more than 10% of daily calories.

If your dog’s daily target is 600 calories:

$600\times 0.10=60$

That means treats should stay around 60 calories per day.

A single large dental chew may exceed that.

A spoon of peanut butter may exceed that.

A cube of cheese may not look like much, but calories do not care about visual size.

Let’s look at the chemistry for a second: fat is calorie dense. Tiny can still be powerful.

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Step 5: Switch to Lower-Calorie Rewards

You do not have to eliminate all treats.

Just choose smarter ones.

Options may include:

• Small pieces of carrot
• Green beans
• Cucumber
• Small apple pieces without seeds
• Plain cooked lean chicken in tiny amounts
• Low-calorie training treats
• Pieces of your dog’s regular kibble
• Vet-approved weight management treats

Avoid toxic foods such as grapes, raisins, onions, garlic, chocolate, xylitol, macadamia nuts, alcohol, and high-fat scraps.

And remember: dogs care more about frequency and emotion than treat size.

A tiny treat delivered with joy still counts as love.

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Step 6: Stop Free-Feeding

Free-feeding makes weight management difficult.

Use measured meals instead.

Most adult dogs do well with 2 meals per day, though some dogs need different schedules based on medical needs.

Measured meals help you track:

• Appetite
• Calories
• Routine
• Digestive response
• Household feeding mistakes

In multi-dog homes, feed separately if needed.

One dog’s diet plan should not become another dog’s buffet opportunity.

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Step 7: Create a Movement Plan

Exercise helps weight loss, but more importantly, it improves muscle, mood, joint support, and metabolic health.

Start based on your dog’s current condition.

For overweight dogs, begin gently:

• Short walks
• Sniff walks
• Slow hill walking if appropriate
• Controlled fetch
• Swimming if safe and tolerated
• Indoor food searches
• Low-impact play
• Physical therapy if recommended

Avoid sudden intense exercise, especially for:

• Obese dogs
• Senior dogs
• Brachycephalic breeds
• Dogs with arthritis
• Dogs with heart disease
• Dogs in hot weather

A 20-minute sniff walk can be more useful than a frantic 5-minute fetch session that overloads the joints.

Movement should build the body, not punish it.

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The “Sniffari” Method: Creative Weight Loss Without Gym Energy

Here is where I do things differently from typical weight loss advice.

Not every overweight dog needs a bootcamp.

Many need a Sniffari.

A Sniffari is a structured walk where sniffing is the main activity.

Why it works:

• Encourages movement without high joint impact
• Reduces stress
• Provides mental enrichment
• Slows fast eaters and anxious dogs indirectly
• Makes walks more rewarding
• Helps sedentary dogs enjoy leaving the house

How to do it:

1. Use a comfortable harness.
2. Choose a safe route.
3. Let your dog sniff intentionally.
4. Keep a steady but relaxed pace.
5. Add short movement intervals.
6. End before your dog is exhausted.

For dogs that hate “exercise,” sniffing can be the gateway.

This is the Living Room Test for weight loss: can the plan survive real life?

If yes, it works.

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The 30-Day Dog Weight Reset Plan

This is a simple starter framework. Adjust with your veterinarian.

Week 1: Measure and Observe

Do:

• Weigh your dog
• Take top and side photos
• Record Body Condition Score
• Measure food in grams
• Count all treats
• Track daily walks
• Stop random table scraps
• Book a vet check if needed

Goal: stop guessing.

Week 2: Reduce Hidden Calories

Do:

• Replace high-calorie treats
• Use kibble as training rewards
• Keep treats under 10% of calories
• Feed measured meals
• Remove free-feeding
• Coordinate all family members

Goal: close the calorie leaks.

Week 3: Add Low-Impact Activity

Do:

• Add 5–10 minutes of extra walking if safe
• Use sniff walks
• Add indoor food search games
• Try gentle hill work only if appropriate
• Avoid heat and overexertion

Goal: increase movement without stressing joints.

Week 4: Recheck and Adjust

Do:

• Weigh your dog again
• Compare photos
• Check stool and energy
• Review treat use
• Ask your vet about calorie adjustment
• Celebrate non-food wins

Goal: build a repeatable system.

Weight loss is not a 30-day challenge. It is a new operating system.

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Best Exercises for Overweight Dogs

Good options include:

Walking

The simplest and most sustainable.

Start with short, frequent walks.

Sniff Walks

Great for low-pressure movement and mental enrichment.

Swimming

Excellent low-impact exercise for many dogs, but not all dogs enjoy or tolerate it. Use a canine life jacket and supervise closely.

Food Search Games

Hide part of your dog’s meal around a room or yard.

This increases movement and slows eating.

Puzzle Feeders

Useful for mental stimulation and meal pacing.

Gentle Tug

Good for some dogs, but avoid rough tugging if your dog has neck, back, dental, or joint issues.

Cavaletti or Step-Over Poles

Helpful for controlled movement and body awareness, especially under professional guidance.

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Exercises to Avoid or Use Carefully

Be cautious with:

• Intense fetch
• Long runs
• Jumping games
• Stair sprints
• Hot-weather exercise
• Forced treadmill work
• Heavy backpack walks
• High-impact agility
• Weekend-only extreme hikes

An overweight dog’s joints are already carrying extra load.

Do not add chaos on top of load.

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What Is the Best Dog Food for Weight Loss?

The best weight loss food depends on your dog’s health, calorie needs, satiety, and veterinarian guidance.

Options may include:

• Veterinary therapeutic weight loss diets
• High-fiber weight management formulas
• Higher-protein calorie-controlled diets
• Lower-fat diets
• Wet food for volume and moisture
• Carefully portioned regular food

Do not just feed less of a regular diet without checking nutrition. If you reduce too much, your dog may receive too few essential nutrients.

Veterinary weight loss diets are designed to provide nutrients while reducing calories.

That matters.

Safe chemistry beats random restriction.

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Should You Feed Wet Food, Kibble, Fresh Food, or Raw for Weight Loss?

Any format can cause weight gain if calories are too high.

Any format can support weight loss if it is complete, balanced, portioned correctly, and appropriate for the dog.

Kibble

Pros:

• Easy to measure
• Convenient
• Many weight formulas available

Concern:

• Calorie dense, easy to over-scoop

Wet Food

Pros:

• Higher moisture
• More volume for some dogs
• May increase fullness

Concern:

• Portion and cost may be higher

Fresh Food

Pros:

• Palatable
• Often higher moisture

Concern:

• Easy to overfeed if portions are not calorie-controlled

Raw or Freeze-Dried Raw

Pros:

• Palatable for some dogs

Concern:

• Calorie density and pathogen handling risks must be considered

My honest recommendation: choose the format you can measure accurately and feed consistently.

The best diet is the one that works safely in your real home.

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Why Your Dog Is Not Losing Weight

If your dog is not losing weight, check these common problems:

• Food is not being measured accurately
• Treats are not counted
• Multiple people are feeding
• Dental chews are adding calories
• Table scraps continue
• Food bag guidelines are too high
• Exercise is inconsistent
• Medical condition is slowing progress
• Target calories are too high
• Weight checks are too infrequent
• “Healthy” toppers are adding hidden calories

The most common issue?

Someone in the house is lying.

Not maliciously. Lovingly.

Grandpa gives toast. Kids drop nuggets. Someone adds chicken “because he looked sad.”

Weight loss needs a household agreement.

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How Often Should You Weigh Your Dog?

For a weight loss plan, many dogs benefit from weigh-ins every 2–4 weeks.

Small dogs may need more precise scales because small changes matter.

Use:

• Vet clinic scale
• Pet store scale
• Home baby scale for small dogs
• Human scale method for medium dogs: weigh yourself, then weigh yourself holding the dog, subtract the difference

Formula:

$Dogweight=combinedweight-humanweight$

Track weight trends, not daily fluctuations.

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How to Keep Weight Off After Your Dog Reaches the Goal

Maintenance is where many dogs regain weight.

Once your dog reaches the target weight:

• Recalculate calories
• Continue measuring food
• Keep treats limited
• Maintain activity routine
• Weigh monthly at first
• Adjust food after life changes
• Watch body condition, not just the scale

Common regain triggers:

• Winter inactivity
• Injury
• New baby
• Moving
• Senior slowdown
• New family member feeding treats
• Switching foods without recalculating calories

Weight maintenance is not “done.” It is quieter work.

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When to Call the Vet

Call your veterinarian if your dog:

• Gains weight suddenly
• Cannot lose weight despite measured feeding
• Seems hungry all the time
• Is lethargic
• Pants excessively
• Has a pot-bellied appearance
• Drinks or urinates more
• Has hair loss or skin changes
• Is stiff, limping, or reluctant to move
• Has breathing difficulty
• Is a brachycephalic breed and overweight
• Has diabetes, heart disease, arthritis, or endocrine disease

Do not assume every weight problem is behavioral.

Sometimes biology is involved.

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Internal Reading You May Find Helpful

• Read: Freeze-Dried Raw vs Fresh Food vs Kibble: How to Choose
• Read: Why Are Vet Bills So Expensive in the U.S.?
• Read: Why Does My Dog Smell Again Two Days After a Bath?
• Read: Smart Litter Boxes and AI Pet Cameras: Are They Actually Useful?

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Final Verdict: Dog Weight Loss Is Not About Less Love

If your dog is overweight, the goal is not shame.

The goal is comfort.

Less joint pain. Better breathing. More stamina. Easier grooming. Safer anesthesia. Better senior years. More freedom in the body.

Start with the Rib–Clock–Waist Test. Ask your veterinarian for a body condition score and target weight. Measure food with a gram scale. Count treats. Add low-impact movement. Use sniff walks. Recheck regularly.

And please remember:

Food is not the only language of love.

A walk is love.
A clean ear is love.
A healthy weight is love.
A dog who can move without pain is love.

That is the standard I want for Bento.

And that is the standard I want for yours.

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Scientist’s Note

Dog weight management works best when treated as a measurement system, not a willpower contest.

Track four numbers:

1. Current weight
2. Body Condition Score
3. Daily calorie intake
4. Weekly or monthly weight trend

A safe plan usually targets gradual loss, often around 1–2% of body weight per week under veterinary guidance. If weight does not change after several weeks of accurate measuring, the plan needs adjustment—or the dog needs medical evaluation.

The body is giving feedback. Listen to it.

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Groomer’s Tip

During bath time or brushing, check these obesity clues:

• Can you feel the ribs through the coat?
• Is there greasy skin in body folds?
• Does the dog struggle to stand for grooming?
• Are paws harder to clean because the dog resists lifting legs?
• Is there matting near the rear because the dog cannot turn comfortably?
• Is the harness rubbing under the armpits or chest?
• Does the dog pant heavily during a simple grooming session?

Grooming often reveals what dry fur hides.

If your dog is overweight and has skin folds, keep those areas clean and dry. Moisture trapped in folds can lead to odor, irritation, and infection.

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Q&A: Dog Obesity and Weight Loss

Q: How can I tell if my dog is overweight at home?

Use the rib, waist, and side tuck test. You should be able to feel your dog’s ribs with light pressure, see a waist from above, and see the belly tuck upward from the side. If the ribs are hard to feel or the body looks rectangular, your dog may be overweight.

Q: What is a healthy Body Condition Score for dogs?

On a 9-point Body Condition Score scale, most dogs should be around 4–5 out of 9. A score of 6 suggests slightly overweight, while 7–9 indicates overweight to obese.

Q: How fast should a dog lose weight?

Many dogs safely lose about 1–2% of body weight per week under veterinary guidance. Faster weight loss is not always better and may be unsafe.

Q: Should I just feed my dog less?

Not always. Feeding much less of a regular food can reduce essential nutrients. Ask your veterinarian whether your dog needs a calorie-controlled portion of current food or a veterinary weight management diet.

Q: Are treats allowed during dog weight loss?

Yes, but treats should usually stay under 10% of daily calories. Use low-calorie treats or pieces of your dog’s measured kibble.

Q: What is the best exercise for an overweight dog?

Walking, sniff walks, swimming, food search games, and gentle low-impact play are often good options. Avoid sudden intense running or jumping, especially for obese, senior, arthritic, or short-nosed dogs.

Q: Why is my dog overweight even though I do not feed much?

Possible reasons include hidden treats, inaccurate measuring, low activity, neutering-related calorie changes, medical conditions, or food that is more calorie-dense than expected. A vet check and accurate calorie tracking can help.

Q: Can obesity cause skin problems in dogs?

Yes. Extra weight can contribute to skin folds, moisture trapping, poor grooming ability, inflammation, and odor. It may also worsen mobility, making it harder for dogs to keep themselves clean.

Q: Is grain-free food better for weight loss?

Not automatically. Weight loss depends more on calories, nutrient balance, protein, fiber, satiety, and portion control than whether a diet contains grains.

Q: When should I see a vet for my dog’s weight?

See a vet if your dog is obese, gaining weight quickly, unable to lose weight despite measured feeding, has low energy, drinks more, pants excessively, limps, or has any chronic disease.

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References and Further Reading

1. World Small Animal Veterinary Association. Body Condition Score and Global Nutrition Guidelines.
2. American Animal Hospital Association. Weight Management Guidelines for Dogs and Cats.
3. Association for Pet Obesity Prevention. Pet obesity statistics and owner resources.
4. Laflamme, D. Development and validation of a body condition score system for dogs. Canine Practice.
5. German, A. J. The growing problem of obesity in dogs and cats. Journal of Nutrition.
6. American Veterinary Medical Association. Obesity and pet health resources.
7. Cornell University College of Veterinary Medicine. Canine nutrition and weight management resources.
8. National Research Council. Nutrient Requirements of Dogs and Cats