This document discusses nonalcoholic fatty liver disease (NAFLD), which includes a range from simple fatty liver (steatosis) to nonalcoholic steatohepatitis (NASH). It notes that 85% of people with a body mass index (BMI) of 30 or higher have NAFLD, and around 5% of people without other risk factors also have NAFLD. It provides recommendations to manage NAFLD, including lifestyle changes like diet, exercise and weight loss, as well as potentially supplementing with omega-3 fatty acids.