The Holsteiner is a warmblood sport horse bred for explosive power and athletic versatility, and its nutritional demands reflect that heritage. An average Holsteiner in moderate to heavy work can weigh between 1,100 and 1,400 pounds, requiring roughly two to two and a half percent of its body weight in total daily feed. The balance of forage to concentrates shifts depending on whether the horse is in an active competition season, recovering from injury, or maintaining condition during an off period.
Because Holsteiners are frequently asked to perform at high levels in show jumping, dressage, and eventing, their energy requirements tend to run higher than those of lighter pleasure breeds. Caloric intake should come primarily from quality forage, with concentrates added to fill the gap when hay and pasture alone cannot sustain workload demands. Fat supplementation is often preferable to excess starch for sustained energy without the behavioral spikes associated with sugar-heavy feeds.
Protein requirements for an athletic Holsteiner typically fall between ten and fourteen percent of the total diet, depending on age and workload. Growing young horses and broodmares in late gestation need protein at the higher end of that range, while mature horses in light work can thrive closer to the lower end. Amino acid quality matters as much as total protein percentage, so look for feeds that list specific amino acid profiles rather than relying on crude protein numbers alone.
Minerals and vitamins round out the nutritional picture. Calcium-to-phosphorus ratios should remain close to two-to-one, and trace minerals like zinc, copper, and selenium are critical for hoof integrity, coat quality, and immune function. Horses in regions with selenium-deficient soil may need targeted supplementation, while those on lush pasture may require additional magnesium to offset grass-related metabolic imbalances.