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Magnesium Sulfate: Elevating Performance in Horses

Updated: Sep 14, 2023

Performance horses, whether in racing, show jumping, or other competitive disciplines, require peak physical condition to excel in their respective fields. One often overlooked but vital aspect of their care is magnesium sulfate.

This remarkable compound, commonly known as Epsom salt, plays a pivotal role in maintaining the health and performance of these equine athletes. In this blog post, we'll explore how magnesium sulfate can benefit performance horses and why it should be a staple in their care regimen.

The Role of Magnesium in Equine Health

Magnesium is an essential mineral that plays a crucial role in various physiological processes within a horse's body. It is required for the proper functioning of nerves and muscles, making it integral to a horse's overall health and athletic performance. Here are some ways magnesium impacts a horse's well-being:

  1. Muscle Function: Magnesium helps regulate muscle contractions, ensuring that they function smoothly and efficiently. This is especially important for performance horses, as strong and coordinated muscles are essential for their success in various disciplines.

  2. Nervous System: Magnesium aids in the transmission of nerve signals, promoting mental focus and reducing stress. Performance horses need a calm and focused demeanor to perform at their best, and magnesium can help achieve this.

  3. Bone Health: While calcium often gets more attention in equine nutrition, magnesium is equally important for bone health. It contributes to the development and maintenance of strong bones, reducing the risk of injuries.

  4. Energy Production: Magnesium is involved in the production of adenosine triphosphate (ATP), the primary energy currency of cells. Adequate magnesium levels ensure that a horse has the energy required for strenuous activities.

How Magnesium Sulfate Benefits Performance Horses

Now that we understand the significance of magnesium in equine health, let's delve into how magnesium sulfate, in particular, can benefit performance horses:

  1. Muscle Relaxation: Magnesium sulfate has natural muscle relaxant properties. Administering magnesium sulfate can help alleviate muscle tension and soreness, promoting faster recovery after intense workouts or competitions.

  2. Stress Reduction: Competitive environments can be stressful for horses. Magnesium sulfate has calming effects on the nervous system, reducing anxiety and excitability in horses, which is especially important for maintaining focus during events.

  3. Electrolyte Balance: Magnesium is an essential electrolyte, and maintaining electrolyte balance is crucial for a horse's performance. Magnesium sulfate supplementation can help prevent electrolyte imbalances, reducing the risk of dehydration and muscle cramps.

  4. Anti-Inflammatory Properties: Magnesium sulfate has anti-inflammatory properties, which can be beneficial for performance horses prone to inflammation due to the rigors of training and competition. It can aid in managing conditions like exercise-induced muscle soreness.

  5. Hoof Health: Magnesium sulfate foot soaks can help address hoof issues, such as abscesses and laminitis, which can hinder a horse's performance. Healthy hooves are essential for soundness and agility.

How to Administer Magnesium Sulfate

It's important to note that while magnesium sulfate can offer numerous benefits, it should be administered with caution and under the guidance of a veterinarian or equine nutritionist. The dosage and form of magnesium sulfate (injectable supplements, oral supplements, topicals, or foot soaks) should be tailored to each horse's specific needs and circumstances.


Magnesium sulfate, often underappreciated in equine nutrition and performance, can be a game-changer for your performance horse's well-being and success. From muscle relaxation to stress reduction and electrolyte balance, its benefits are multifaceted. However, always consult with a knowledgeable equine professional to determine the right magnesium sulfate regimen for your horse, as individual needs can vary. When used appropriately, magnesium sulfate can help your performance horse reach new heights of health and athletic excellence.

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