Keeping your pet at a healthy weight is an important part of their overall health and quality of life. If you’re wondering how to tell if your pet is overweight, there are several physical and behavioral signs you can look for at home.
Extra weight can put additional stress on the body and may make everyday activities such as walking, running, jumping, and grooming more difficult.
The challenge is that it isn’t always easy to tell whether a pet is overweight just by looking at them. Different breeds, body types, ages, and sizes can naturally have very different shapes.
Learning how to tell if your pet is overweight can help you recognize potential weight problems and discuss them with your veterinarian before they become more serious.
Why a Healthy Weight Matters
A healthy weight helps your pet move comfortably and maintain good physical condition.
Carrying excess weight can place additional strain on the joints and may contribute to other health problems. Overweight pets may also have more difficulty exercising and staying active, which can create a cycle of reduced activity and further weight gain.
Maintaining an appropriate weight is therefore about more than appearance. It is an important part of everyday pet care.
1. You Can’t Easily Feel Your Pet’s Ribs
One of the simplest ways to check your pet’s body condition is to gently feel their ribs.
You should generally be able to feel the ribs without having to press firmly. They should not be covered by a thick layer of fat.
If you have difficulty feeling your pet’s ribs, they may be carrying too much weight.
However, the ribs should not be extremely prominent either. A healthy pet should have some fat covering the ribs.
This rib check is one of the most useful things to consider when learning how to tell if your pet is overweight, although it should not be used as the only assessment.
2. Your Pet Has Little or No Waist
Look at your pet from above while they are standing.
Dogs and cats at a healthy weight generally have some narrowing behind the rib cage, creating a visible waist.
If your pet’s body appears almost the same width from the chest to the hips, this may indicate excess weight.
The exact shape varies between breeds, so it is important to consider your pet’s natural body structure as well.
3. Their Abdomen Looks Rounded From the Side
You can also look at your pet from the side.
A healthy dog or cat will generally have some upward tuck of the abdomen behind the rib cage.
If the abdomen appears very rounded or hangs noticeably lower than expected, your pet may be carrying excess body fat.
Looking at your pet from both above and the side gives you a better overall picture of their body condition.
4. They Tire Easily During Activity
Changes in your pet’s activity level can sometimes provide clues about their weight.
An overweight pet may become tired more quickly during walks, play, or other normal activities.
They may also be less interested in running, jumping, climbing, or playing than they used to be.
Reduced activity can have many causes, however, so a sudden change should not automatically be attributed to weight. Health problems, pain, age, and other factors can also affect activity levels.
5. Grooming Becomes More Difficult
Extra weight can make certain movements more difficult.
Cats, in particular, may struggle to reach parts of their body when grooming if they are carrying too much weight. You may notice a less well-groomed coat or difficulty reaching areas around the back and hindquarters.
If your pet’s grooming habits suddenly change, there may also be another underlying reason, so it is worth paying attention to the change.
6. Their Weight Has Increased Gradually
Weight gain can happen so gradually that owners don’t notice it.
Because you see your pet every day, small changes can be difficult to recognize. Regularly weighing your pet can make it easier to identify gradual increases.
Keeping a record of their weight can also help you and your veterinarian monitor changes over time.
If you are unsure how to tell if your pet is overweight, comparing their current weight and body shape with previous records can provide useful information.
How to Check Your Pet’s Body Condition
A body condition assessment looks at your pet’s overall shape rather than relying only on a number on the scale.
When checking your pet, consider:
- How easily you can feel their ribs
- Whether they have a visible waist
- Whether their abdomen is appropriately tucked
- How much fat covers their ribs and body
- Whether their body shape has changed over time
Body condition scoring systems can provide a more useful assessment than weight alone because healthy weights vary considerably between individual animals.
The WSAVA Global Nutrition Guidelines include body condition score resources for both dogs and cats that can help explain how body condition is assessed.
You can also use the AAHA guide to determining whether your pet is overweight for additional information about evaluating your pet’s body condition.
What Causes Pets to Gain Weight?
Several factors can contribute to weight gain, including:
- Eating more calories than they use
- Oversized portions
- Too many treats
- Frequent table scraps
- Not getting enough exercise
- Changes in activity as they age
- Certain medications
- Some underlying health conditions
- Individual differences in metabolism
Sometimes weight gain is caused by more than one factor.
Your veterinarian can help determine whether your pet’s diet, activity level, health, or another factor may be contributing to weight gain.
How to Help Your Pet Maintain a Healthy Weight
If your pet needs to lose weight, small changes can make a difference over time.
Measure Their Food
Instead of estimating portions, measure your pet’s food consistently.
Follow the feeding guidance on the food packaging as a starting point, but remember that individual pets may need different amounts depending on their size, activity, age, and health.
Keep Treats Under Control
Treats contribute calories too.
If your pet receives treats throughout the day, account for them when considering their overall food intake. Avoid giving large amounts of treats simply because your pet asks for them.
Encourage Appropriate Exercise
Regular activity can help pets maintain muscle and use energy.
The appropriate amount of exercise depends on your pet’s species, age, breed, health, and fitness level. Increase activity gradually if your pet has been inactive.
Monitor Their Weight
Weighing your pet regularly can help you identify changes before they become significant.
Keeping a simple record can also make it easier to discuss weight changes with your veterinarian.
Don’t Put Your Pet on a Diet Without Guidance
If you believe your pet is overweight, avoid making drastic changes to their food intake without professional guidance.
Rapid weight loss can be harmful, particularly in cats. A veterinarian can assess your pet’s body condition, determine an appropriate target weight, and help create a safe feeding and exercise plan.
The AAHA Nutrition and Weight Management Guidelines emphasize individualized nutritional assessment and weight-management plans for dogs and cats.
When to Talk to a Veterinarian
Speak with your veterinarian if:
- You aren’t sure whether your pet is overweight
- Your pet has gained weight unexpectedly
- Your pet is losing weight without an obvious reason
- Your pet has suddenly become less active
- Your pet has difficulty exercising
- You are considering a significant change to their diet
- Your pet has an existing health condition
A veterinarian can determine whether your pet’s weight is appropriate and investigate other causes if weight changes are unexpected.
How to Tell If Your Pet Is Overweight: The Bottom Line
Knowing how to tell if your pet is overweight can help you recognize potential weight problems early. Feeling your pet’s ribs, looking for a visible waist, checking their abdominal tuck, monitoring activity, and tracking their weight can all provide useful clues.
However, these checks cannot replace a professional assessment. Every pet has different body characteristics, and an appropriate weight depends on factors such as species, breed, age, muscle condition, activity level, and health.
If you’re still unsure how to tell if your pet is overweight, schedule a veterinary assessment. Your veterinarian can evaluate your pet’s body condition and help you develop an appropriate plan for maintaining a healthy weight.
