The Arabian horse is a breed built for efficiency. Originating in the harsh desert climates of the Arabian Peninsula, these horses evolved to thrive on relatively sparse forage while maintaining remarkable stamina and athleticism. This metabolic efficiency means Arabians generally require fewer calories per pound of body weight than many other breeds of comparable size. Overfeeding is one of the most common nutritional mistakes owners make, and it can lead to obesity, insulin resistance, and metabolic syndrome.
A healthy Arabian's diet should be built on a foundation of quality forage. Hay or pasture grass should make up the majority of daily intake, typically between 1.5 and 2 percent of body weight per day. Because Arabians are considered an "easy keeper" breed, many individuals do well on forage alone with a ration balancer to fill in micronutrient gaps, rather than a full grain-based concentrate feed.
Protein requirements vary depending on the horse's age, workload, and reproductive status. A mature Arabian in light work generally needs around 8 to 10 percent crude protein in the total diet, while growing foals, lactating mares, and horses in heavy endurance training may need 12 to 14 percent. Monitoring body condition score on a regular basis is the best way to fine-tune caloric and protein intake over time.
Arabians competing in endurance events have unique electrolyte and energy demands. Prolonged aerobic exercise depletes sodium, chloride, potassium, and calcium at rates that exceed what a standard diet can replace. Owners of performance Arabians should work with an equine nutritionist to develop a feeding plan that accounts for seasonal workload changes, competition schedules, and environmental heat stress.