American horses are obese, too - Report - MDSpire

American horses are obese, too

  • By

  • Joshua Moen

  • June 8, 2026

  • 0 min

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Clinical Report: Obesity Rates Among American Horses Are Alarmingly High

Overview

Fifty-one percent of mature light-breed horses in the U.S. are classified as obese, a rate that is among the highest globally. This condition is closely linked to equine metabolic syndrome, which presents significant health risks similar to those seen in obese humans.

Background

The rising obesity rates in horses reflect broader trends in human obesity, highlighting a shared epidemic that affects both species. Equine metabolic syndrome, characterized by obesity and insulin dysregulation, poses serious health risks, including laminitis. Understanding the dietary and management factors contributing to this condition is crucial for improving equine health.

Data Highlights

No numerical data or trial data provided in the source material.

Key Findings

  • 51% of mature light-breed horses in the U.S. are obese.
  • Equine metabolic syndrome is characterized by obesity, elevated triglycerides, and insulin dysregulation.
  • Obese horses exhibit serum lipid profiles similar to those of obese humans.
  • Chronic feeding of nonstructural carbohydrates is a significant dietary driver of obesity in horses.
  • Insulin dysregulation is a central feature of equine metabolic syndrome.
  • Education alone is insufficient to change owner behavior regarding horse obesity.

Clinical Implications

Veterinarians should be aware of the parallels between equine and human obesity, particularly in terms of metabolic health. Management strategies should focus on dietary modifications and increased awareness among horse owners to prevent obesity-related health issues.

Conclusion

The alarming rate of obesity in American horses necessitates a reevaluation of dietary practices and management strategies to mitigate the risks associated with equine metabolic syndrome.

Related Resources & Content

  1. The ASCO Post, 2019 -- Rising Rates of Six Obesity-Related Cancers Among Younger Adults
  2. Endocrine Reviews, 2023 -- Obesity and Exercise: New Insights and Perspectives
  3. conexiant, 2024 -- Youth Obesity Reaches 20% in US
  4. The ASCO Post, 2019 -- Physicians Should Lead by Example to Combat the Obesity Epidemic
  5. Prevalence of Overconditioning in Mature Horses in Southwest Virginia during the Summer | Journal of Veterinary Internal Medicine | Oxford Academic, 2022
  6. Recommendations for the Diagnosis and Management of Equine Metabolic Syndrome, 2024
  7. Effects of the Sodium-Glucose Cotransporter-2 Inhibitor Velagliflozin on Insulin Concentrations in Horses With Insulin Dysregulation - PubMed, 2023
  8. Prevalence of Overconditioning in Mature Horses in Southwest Virginia during the Summer | Journal of Veterinary Internal Medicine | Oxford Academic
  9. Recommendations for the Diagnosis and Management of
  10. Effects of the Sodium-Glucose Cotransporter-2 Inhibitor Velagliflozin on Insulin Concentrations in Horses With Insulin Dysregulation - PubMed

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