Horses

Horse Equine Metabolic Syndrome Diet Management

Equine metabolic syndrome (EMS) causes insulin dysregulation and laminitis risk. Dietary management is the cornerstone of welfare-focused EMS treatment.

Key Facts

EMS is characterized by obesity, regional fat deposits, insulin resistance and laminitis predisposition
Native and easy-keeping breeds including ponies and Morgans are most commonly affected
Grass fructan levels vary significantly with season, temperature and growth stage
Low-sugar low-starch diets combined with appropriate exercise are the primary management tools
Grazing muzzles and strip grazing can reduce grass intake without completely denying turnout

Welfare Considerations

Horses with unmanaged EMS suffer recurrent painful laminitis episodes that cause chronic lameness. Laminitis pain is severe and debilitating. Dietary management requires balancing the welfare costs of grass restriction against the welfare benefits of preventing laminitis. Complete denial of turnout for social and psychological reasons must be weighed and managed with alternative enrichment.

What You Can Do

Test horses suspected of EMS with combined glucose-insulin testing and assess body condition
Implement a low-sugar low-starch diet replacing high-fructan hay with soaked hay or low-sugar alternatives
Use grazing muzzles during high-risk periods while allowing some turnout for social welfare
Work with a vet and equine nutritionist to develop an appropriate weight loss program
Monitor regularly for early laminitis signs and respond immediately with box rest and veterinary care