MSM is common in equine supplements, but it’s a synthetic compound made from sulfur and methane gas—often originating from industrial processes (petroleum byproducts).
MSM is popular in joint or anti-inflammatory marketed supplements. But the science for horses is weak.
Companies are able to market the product as “Natural” due to unregulated marketing terms and loose regulatory bodies.
Petroleum & methane
are earth elements thereby considered as “natural”.
MSM is 34% sulfur by weight.
Reconsider feeding your horse MSM.
