Life Fatty liver disease affects millions of unaware Americans. Here’s what you need to know. June 2, 2022June 2, 2022Dr. Michael Daignault, USA TODAYComments Off on Fatty liver disease affects millions of unaware Americans. Here’s what you need to know. Non-alcoholic fatty liver disease (NAFLD) affects between 80 and 100 million Americans. Here's what you need to know.