Pet obesity is a clinical health condition.
Awareness is the first step.
Since 2005, the Association for Pet Obesity Prevention has provided veterinary healthcare professionals and pet owners evidence-based tools, prevalence data, and resources to support diagnosis, communication, and treatment of clinical pet obesity.
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Practical tools and evidence-based guidance for body condition scoring, weight management care, survey participation, and APOP partner resources.
Pet owner resources
Check your pet’s body condition, understand healthy weight, and prepare for a conversation with your veterinary team.
Check body conditionVeterinary clinical tools
Access BCS and MCS resources, weight management tools, client materials, and communication support.
View veterinary resourcesSurvey data & signup
Explore prevalence data, survey reports, methodology, and clinic participation materials.
Sign up for surveyMedia & partner resources
Access communication guidance, request information, or explore sponsorship and collaboration opportunities.
View partner resourcesPopular Tools
Veterinary Clinical Resources
Dog & Cat Calorie Calculators
Dog Weight Loss Guide
Cat Weight Loss Guide
Body Condition Score Charts
Dog & Cat Breed Weight Ranges
Clinic Survey Registration
2026 Clinic Prevalence Survey
Registration is open for the 2026 Veterinary Clinic Pet Obesity Prevalence Survey, taking place during World Pet Obesity Month in October.
Veterinary teams are invited to record body condition scores for eligible dogs and cats during a designated clinic day. Participation is straightforward, and data collection can be completed in as little as one day.
U.S. clinic data will support national prevalence analysis. International participation is also encouraged and helps strengthen future comparative research.
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