Millions in west do not know they have aggressive fatty liver disease, study says

More than 15 million people in the US, UK, Germany, and France have a serious but often undiagnosed form of fatty liver disease—non-alcoholic steatohepatitis (MASLD), now called MASH—in which their liver contains more than 5% fat. However, only about 2.5 million of them have been diagnosed so far, leaving millions unaware and at risk of complications like cirrhosis, heart disease, and cancer. Researchers found that nearly three-quarters of people living with this condition remain undiagnosed, despite its severity and serious health impacts. Experts call for increased diagnostic rates to improve treatment effectiveness and reduce costs over the next two decades.