Nonprofit · Evidence-based · Since 2005

Helping pets live healthier lives.

Resources to help you understand body condition, start better conversations, and take the next step together.

Start with body condition Veterinary resources

Now Available

2026 Pet Obesity Communication Guidelines

Practical, pet-first guidance for clearer conversations about body condition, excess weight, and obesity in veterinary care and public communication.

Explore the Communication Guidelines

APOP · 2026 Pet-first. Clinically clear. Consistent language.

Resources & tools

Practical help for pets and the people who care for them

Start with a resource hub or go directly to a frequently used APOP tool.

Pet owners

Pet Owner Resources

Body condition, feeding, calories, treats, healthy-weight guidance, and practical next steps.

Explore owner resources

Assessment

Body & muscle condition

Dog, cat, rabbit, and horse BCS charts, plus the dog and cat Muscle Condition Score chart.

View BCS & MCS charts

Calculators

Dog & cat calorie tools

Estimate daily needs, feeding amounts, current intake, and treat calories.

Choose a calculator

New guide

How to read a pet food label

Find calories, feeding directions, nutritional adequacy, and the label details that matter.

Explore the label guide

2026 Surveys

Take part in APOP's 2026 research

APOP measures overweight and obesity in dogs and cats through two surveys. Add your clinic's data, or share your perspective.

Veterinary clinics · Oct. 1–Dec. 31

2026 Prevalence Survey

Choose a day, two days, or one week to record eligible dogs and cats. U.S. clinics submitting 15 or more records receive a $50 staff-time stipend.

Veterinary teams & pet owners · Opens Oct. 1

Pet Obesity & Nutrition Opinion Survey

Share your perspective on pet body condition, feeding, weight management, nutrition, and veterinary communication.

Take the opinion survey

Research & prevalence

Evidence behind the tools

Review current findings, survey methods, and APOP’s historical pet obesity data.

Latest findings

2025 Pet Obesity & Nutrition Opinion Survey

Review self-reported findings on body condition, feeding practices, weight-management efforts, and veterinary communication.

Read the 2025 findings

Methods & results

APOP surveys and data

See how clinic-based prevalence surveys and opinion surveys are designed, analyzed, and interpreted, then browse results by year.

Explore surveys and data

National reference

State of Pet Obesity report

Review APOP’s U.S. report on dog and cat obesity prevalence, owner perception, feeding behavior, and clinical trends.

View the report

About APOP

Advancing healthier body condition since 2005

APOP is a nonprofit organization supporting pet owners and veterinary teams through prevalence research, body condition assessment tools, practical education, and evidence-based guidance for obesity care.

Learn about APOP

Since 2005

A focused mission

APOP works to improve how excess body fat and obesity-related health risks are recognized, discussed, prevented, and treated.

Prevalence research

Measuring what matters

Clinic-based surveys and owner opinion studies help reveal body condition trends, perception gaps, and opportunities to improve care.

Clinical tools

Assessment made practical

BCS and MCS charts, calculators, guides, and client resources support consistent assessment and individualized care.

Collaboration

Clearer standards

APOP works with veterinary and animal-health partners to strengthen definitions, communication, and obesity care.

Stay informed

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Receive new tools, survey deadlines, research findings, and practical guidance for pet owners and veterinary teams.

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