Laminitis is one of the most painful and debilitating conditions affecting horses and ponies, causing inflammation of the sensitive laminae within the hoof. Nutrition management is central to prevention and recovery, as dietary carbohydrate overload is a primary trigger.
The sensitive laminae suspend the pedal bone within the hoof capsule. Inflammation disrupts blood flow and can cause the bone to rotate or sink—a catastrophic welfare emergency. Chronic laminitis causes persistent pain, abnormal posture, and psychological suffering from prolonged discomfort.
High non-structural carbohydrate (NSC) intake is the major dietary trigger. Lush spring grass, fructan-rich pasture, grain overload, and sudden diet changes all elevate risk. Horses with equine metabolic syndrome (EMS) or pituitary pars intermedia dysfunction (PPID, Cushing's disease) face heightened vulnerability due to insulin dysregulation.
At-risk horses and ponies should have restricted access to high-sugar pasture, using strip grazing, track systems, or dry lots. Hay with NSC below 10-12% (tested or soaked to reduce sugar content) forms the dietary foundation. Soaking hay for 30-60 minutes reduces NSC by up to 30%. Calorie-dense grains and molasses-rich feeds should be eliminated.
Overweight horses face dramatically elevated laminitis risk. Achieving and maintaining body condition score 4-5 (Henneke scale) through controlled diet and appropriate exercise reduces metabolic load. Weight loss programs must be gradual—crash dieting risks hyperlipaemia in ponies.
Corrective farriery with supportive shoeing, frog pads, or deep bedding provides immediate comfort. Anti-inflammatory medications (NSAIDs) manage acute pain but require veterinary oversight. Cold therapy (icing) during acute episodes reduces inflammation. Standing on soft, supportive surfaces minimises pressure on damaged laminae.
During acute laminitis, movement must be restricted to allow healing. As recovery progresses, controlled low-intensity exercise on suitable surfaces improves circulation and helps maintain healthy weight. Horses must never be exercised when showing pain signs.
Digital pulse monitoring, hoof temperature checks, and regular farriery appointments enable early detection. Bloodwork for insulin and glucose levels identifies metabolic risk. Horses with previous laminitis require lifelong dietary vigilance—even brief grass access can trigger recurrence in susceptible individuals.
Laminitis profoundly affects horse welfare. Signs of chronic pain include reluctance to move, shifting weight, lying down excessively, facial pain expressions, and behavioural changes. Quality of life assessment guides treatment decisions, including the difficult choice of euthanasia when suffering cannot be adequately managed.