Kalm Ultra® was designed with the hard-keeping and hard-working horse in mind. This soft, pelleted horse feed contains no added iron and is very high in fat (12%), making it suitable for horses with the highest calorie needs. Kalm Ultra® is also formulated with Uptake Technology™, a powerful blend of pre- and probiotics, digestive enzymes and phospholipids that improve nutrient absorption and support your horse’s digestive health, as well as Constant Comfort®, a premium seaweed derived calcium that promotes a healthy gastric pH to support horses at risk of ulcers and digestive upset.