GNMT (Glycine N-Methyltransferase) is an important enzyme involved in methionine metabolism and liver detoxification. It helps regulate homocysteine levels by converting excess methionine into sarcosine, preventing harmful methionine accumulation and supporting liver health. Dysfunction of GNMT is associated with liver conditions such as fatty liver disease and liver cancer. Ongoing research highlights GNMT’s protective role against liver toxicity and its potential as a marker for assessing liver health.