Why is Sulfur Important for Horses?
The connective tissues of all mammals are rich in the mineral sulfur. The skin, hair, ligaments, tendons, cartilage, and hooves of horses are composed of connective tissue. Collagen is the protein of connective tissue, and is the most abundant protein in the mammalian body. Sulfur, an important component of collagen, is required for both joint health and, in horses, healthy hooves. One dietary source of sulfur is methionine. Methionine is an essential amino acid that the body can convert to another “sulfur-containing” amino acid called cysteine.
Once converted, cysteine provides the sulfur “welds,” or crosslinks, necessary for healthy collagen and, thus, a strong connective tissue infrastructure. The lack of sulfur, or methionine, in a horse’s diet is known to lead to structural weakness in the:
- Ligaments
- Tendons
- Bones
- Joints
- Hooves
However, too much sulfur in a horse’s diet can lead to over-supplementation, weaken joint strength, and affect hoof quality.
How does Over-Supplementation Occur?
Many hoof supplements contain sulfur in the form of the amino acid methionine. The added methionine balances the relative deficiency of methionine in the typical equine pasture and hay diet. Most equine joint supplements contain MSM, or methylsulfonylmethane, which contains around 34% sulfur. Sulfur over-supplementation can result from feeding a hoof supplement with methionine along with a joint supplement containing MSM. Excess sulfur in the diet has been shown to impair the proper absorption of copper. Copper, along with vitamin C, is necessary for collagen formation and the development of healthy connective tissue for strong hooves and joints.
How can Over-Supplementation be Avoided?
There are other negative effects of over-supplementation, and it is generally not a good idea to give more than one vitamin/mineral supplement to a horse. If the horse has joint problems in addition to hoof problems, joint supplements without additional sulfur can be given in addition to the hoof supplement. Avoiding supplements that duplicate nutrients is key to reducing the risk of over-supplementation. Providing a single balanced supplement, backed by research and years of proven effectiveness, is recommended and can lead to a healthier, happier horse.
Farrier’s Formula® DS Plus Joint
Farrier’s Formula® DS Plus Joint is formulated to provide nutrients to help build strong connective tissue, improve hoof and coat quality, and give support for the joints without creating the over-supplementation and added expense that occurs when feeding a hoof supplement and joint supplement separately.