D-Methionine is widely used in animal feed as a nutritional supplement, particularly for poultry and swine, to ensure proper growth and development by providing essential sulfur-containing amino acids. It helps improve feed efficiency, supports muscle development, and enhances overall animal health. In the pharmaceutical industry, it is utilized in the production of medications aimed at treating liver disorders and detoxifying harmful substances. Additionally, D-Methionine is employed in cosmetic formulations for its antioxidant properties, helping to protect the skin from oxidative stress and aging. It also finds application in agriculture as a component of fertilizers to promote plant growth and improve crop yield.