Feeding performance horses with EMS means managing risk, not just calories

Feeding a performance horse with equine metabolic syndrome, or EMS, is a balancing act between supporting athletic work and reducing the risk of insulin dysregulation and laminitis. In a new expert commentary for The Horse, Madeline Boast, MSc, outlines a practical approach centered on forage-first feeding, tight control of nonstructural carbohydrates, and individualized ration design for horses that still need enough energy to stay in work. That advice lines up with broader guidance from the Equine Endocrinology Group, which says EMS management should focus on lowering post-meal insulin responses, monitoring body condition, and adjusting diet and exercise based on laminitis risk. Horses at higher risk for metabolic problems include easy keepers, ponies, and certain breeds with a tendency toward obesity or insulin dysregulation, according to related background coverage from The Horse. (thehorse.com)

Why it matters: For equine veterinarians and nutrition-minded teams, the key message is that “performance” doesn’t cancel out “metabolic.” Horses with EMS may still be in training, but they often need lower-NSC forage, careful use or avoidance of concentrates, and supplementation to cover vitamins and minerals if calories are restricted. Consensus recommendations also support regular exercise for nonlaminitic horses, while emphasizing that any horse with current or prior laminitis needs a more cautious, closely supervised return-to-work plan. (thehorse.com)

What to watch: Expect continued emphasis on individualized feeding plans, insulin monitoring after diet changes, and updated field guidance as EMS recommendations evolve. (merckvetmanual.com)