Horse Equine Metabolic Syndrome: Prevention and Welfare

Equine metabolic syndrome predisposes horses and ponies to laminitis and requires dietary management and exercise programs for welfare preservation.

Key Facts

Equine metabolic syndrome involves insulin dysregulation that dramatically increases laminitis susceptibility in affected horses
Easy keeper breeds including native ponies, Morgans, and Arabians show elevated EMS prevalence
Pasture grass fructan content that triggers EMS-related laminitis is highest in spring and autumn growth periods
Soaking hay for 30-60 minutes reduces water-soluble carbohydrate content by 30-40% making it safer for EMS horses
Regular exercise significantly improves insulin sensitivity and is a key management component alongside dietary restriction

Welfare Considerations

Equine metabolic syndrome causes profound welfare harm primarily through its consequences — laminitis causing chronic painful foot disease. EMS horses experiencing laminitis suffer intensely and may require months of supportive care or euthanasia in severe cases. Prevention through appropriate dietary management restricting access to high-sugar pasture and feed, combined with regular exercise improving insulin sensitivity, dramatically reduces laminitis risk. Owner recognition of EMS in their horse before the first laminitis episode is the most welfare-positive intervention point, enabling prevention rather than management of established disease.

What You Can Do

Test at-risk breeds for EMS using insulin testing rather than waiting for laminitis to indicate the condition
Restrict pasture access during high-fructan growth periods for EMS horses
Implement regular exercise programs to improve insulin sensitivity in EMS-affected horses
Soak hay for EMS horses to reduce water-soluble carbohydrate content before feeding