Mark Gurarie is a writer covering health topics, technology, music, books, and culture. He also teaches health science and research writing at George Washington University's School of Medical and ...

Liver enzymes are proteins in your liver that speed up chemical reactions. If your liver is damaged, blood tests will show abnormally high levels of these enzymes circulating in your bloodstream.

Doctors can diagnose fatty liver disease, now called metabolic dysfunction-associated steatotic liver disease (MASLD), using blood tests that measure serum liver enzyme levels. Elevated enzyme levels ...