Equine Metabolic Syndrome Prevention

Equine metabolic syndrome is largely preventable through appropriate management of diet, exercise, and weight in susceptible horses and ponies.

Key Facts

Equine metabolic syndrome involves insulin dysregulation, often obesity, and high laminitis risk
Native pony breeds, Morgans, Tennessee Walking Horses, and Arabians have higher genetic risk
Pasture grass highest in non-structural carbohydrates in spring and autumn - high-risk grazing periods
Hay analyzed for non-structural carbohydrate content should be below 10% for at-risk animals
Soaking hay for 30-60 minutes in cold water reduces non-structural carbohydrate content
Body condition scoring every 4-6 weeks monitors weight before problems develop
Continuous access to high-calorie spring pasture is the leading preventable risk factor
Exercise improves insulin sensitivity in horses with EMS

Welfare Considerations

Horses and ponies with unmanaged EMS face recurrent laminitis that causes severe, prolonged foot pain. Prevention is straightforward - appropriate pasture management, correct feeding, and regular weight monitoring - but requires consistent owner compliance that many struggle to maintain. The appeal of watching horses graze and the difficulty of restricting access to lush grass creates barriers to appropriate prevention. Laminitic horses that could have been protected through management experience preventable chronic pain. The welfare cost of failed EMS management - often multiple laminitis episodes over years - is substantial and deeply affects the horse-owner relationship.

What You Can Do

Monitor body condition score every 4-6 weeks for at-risk horses and ponies
Restrict pasture access during high-risk spring and autumn periods using strip grazing or dry lots
Test hay non-structural carbohydrate content and soak if needed for EMS horses
Incorporate regular exercise to improve insulin sensitivity
Work with your equine vet to establish an EMS management protocol before problems develop