Here's why:
* Toxicity: Sulfur is a mineral that is essential for horses, but too much can be toxic. Sulfur salt contains a high concentration of sulfur, which can lead to serious health problems.
* No nutritional benefit: Horses don't require sulfur in the amounts found in sulfur salt. Their diet should already provide sufficient amounts through hay, grain, and pasture.
* Gastrointestinal problems: Sulfur salt can irritate the horse's digestive system, leading to diarrhea, colic, and other issues.
If you're concerned about your horse's sulfur intake, consult with a veterinarian. They can help you determine if your horse needs additional sulfur supplementation and recommend a safe and appropriate source.
Remember, it's always best to err on the side of caution when it comes to your horse's health.