Equine Metabolic Syndrome: Welfare and Management

Equine metabolic syndrome is a chronic hormonal disorder causing laminitis and significant suffering, requiring lifelong dietary and exercise management.

Key Facts

Equine metabolic syndrome involves insulin dysregulation leading to laminitis episodes in many horses and ponies.
Affected animals show cresty necks, regional adiposity, and abnormal fat deposits.
Breed predispositions include native pony breeds, Morgans, Andalusians, and warmbloods.
Diet management focuses on low-sugar and low-starch forage, often tested and soaked hay.
Pasture grass, especially in spring and autumn, contains high levels of non-structural carbohydrates.
Laminitis caused by EMS is painful and can become chronically debilitating or fatal if unmanaged.
Regular hoof trimming and monitoring of digital pulse help detect early laminitis onset.

Welfare Considerations

EMS represents one of the most common sources of preventable chronic pain in horses. Owners who fail to recognise EMS or who cannot implement dietary restriction expose their horses to recurrent laminitis episodes. Laminitis causes severe lamellar pain often rated as equivalent to kidney stone pain in humans. Management requires significant owner commitment: soaking hay, eliminating high-sugar feeds, using grazing muzzles, and restricting pasture access. Welfare audits should include EMS screening for susceptible breeds, particularly obese ponies. Early intervention before laminitis becomes structural prevents the most severe outcomes.

What You Can Do

Have a vet test horses with cresty necks or obesity for insulin dysregulation.
Switch to tested, low-sugar hay and restrict pasture access for affected horses.
Use a grazing muzzle as directed by your vet during high-risk pasture periods.
Maintain a healthy body condition score through appropriate feeding and exercise.
Partner with a farrier experienced in therapeutic trimming for EMS-affected horses.