Which mineral is lost through sweating in horses?

The mineral that is notably lost through sweating in horses is sodium. When horses sweat, they lose a significant amount of sodium chloride (common salt), which is crucial for maintaining fluid balance, nerve function, and muscle activity. This loss can lead to dehydration and electrolyte imbalances if not properly replenished, especially during intense exercise or in hot weather.

While potassium is also lost in sweat and is important for muscle function and overall health, it is not as predominant as sodium. Calcium and manganese are essential minerals, but they are not primarily lost through sweating. Instead, they are found in the horse's diet and are involved in bone health and metabolic processes. Understanding the importance of sodium in maintaining hydration and preventing electrolyte imbalance is key for horse owners and caretakers, especially during competitive or strenuous activities.