N-Acetyl-D-Methionine is primarily used in the pharmaceutical and nutritional industries. It serves as a precursor in the synthesis of various drugs and supplements, particularly those aimed at supporting liver function and detoxification processes. Its acetylated form enhances bioavailability, making it more effective in therapeutic applications. Additionally, it is utilized in research settings to study metabolic pathways and amino acid metabolism. In the food industry, it can be incorporated into dietary products to provide essential sulfur-containing amino acids, which are crucial for protein synthesis and overall health. Its role in antioxidant activity also makes it valuable in formulations designed to combat oxidative stress.