Used in biomedical research to quantify trimethylamine oxide (TMAO) levels in rat biological samples such as plasma, serum, or urine. This kit supports studies investigating the role of TMAO in cardiovascular diseases, kidney dysfunction, and metabolic disorders. It enables researchers to assess gut microbiota-dependent metabolism and its impact on host health in preclinical models. The assay is commonly applied in toxicology, nutrition, and pharmacology studies where TMAO serves as a biomarker for disease risk and progression.