Methionine is an important sulfur-containing amino acid that plays a key role in the production of the antioxidant glutathione. In horses, maintaining adequate methionine levels is crucial, as a deficiency can lead to stress symptoms such as delayed recovery after physical exertion and increased susceptibility to illness.

Beyond its impact on overall health, methionine also contributes significantly to the maintenance of healthy joints, connective tissues, cartilage, and hooves. For horses with weak or brittle hooves, methionine supplementation can help improve hoof strength and structure.

Once absorbed in the body, methionine is converted into the amino acid cysteine - another sulfur-containing compound essential for preserving protein structure. Cysteine is particularly important in the formation of glucosamine, collagen, and keratin - proteins found in joints, connective tissue, and hooves. For this reason, methionine plays a vital role in supporting the health and well-being of horses.