Arsenic methylation is a process by which inorganic arsenic compounds are metabolized and converted into various organic forms in living organisms. This process plays a crucial role in the detoxification and elimination of arsenic from the body. Research in this area focuses on understanding the mechanisms and pathways involved in arsenic methylation, as well as exploring its implications for human health and environmental contamination. Studies have shown that differences in arsenic methylation efficiency can impact individual susceptibility to arsenic toxicity and related health outcomes. Additionally, this research area also investigates the potential use of arsenic methylation as a biomarker for assessing arsenic exposure and susceptibility.