Treatment of Fatty Liver Disease

Initial Management Approach

The American Association for the Study of Liver Diseases recommends intensive lifestyle modification with weight loss as the first-line treatment for fatty liver disease with elevated transaminases, targeting at least 7-10% body weight reduction through combined dietary intervention and regular aerobic exercise 1, 2
Weight loss of 7-10% of total body weight is recommended to achieve improvement in steatosis, inflammation, hepatocyte ballooning, and fibrosis 1
Weight loss of 3-5% improves steatosis alone, but greater reduction is needed for histologic improvement of inflammation 2

The American Heart Association recommends limiting total fat calories to 25-30% of total intake, with saturated fat <7% 4, 5, 6
Restricting dietary cholesterol to <200 mg/day and eliminating trans fats is recommended 4, 5
Decreasing simple sugar intake and increasing dietary omega-3 fatty acids is recommended for elevated triglycerides 4, 5, 6

The American College of Sports Medicine recommends prescribing regular aerobic exercise progressing in intensity as fitness improves, with or without resistance training 1
Even resistance training alone improves hepatic steatosis and insulin sensitivity 2

The American Association for the Study of Liver Diseases recommends vitamin E 800 IU/day (RRR α-tocopherol) for patients with biopsy-proven NASH without diabetes, as it improves liver histology 1, 3
Pioglitazone benefits select patients with biopsy-proven NASH but requires careful patient selection 3

The American Diabetes Association recommends monitoring AST and ALT annually after diagnosis 4, 5, 6, 7
Persistently elevated or worsening transaminases warrant gastroenterology referral 4, 5, 6
Calculating FIB-4 index is recommended to assess for advanced fibrosis and guide referral decisions 8, 9
Patients with high FIB-4 scores, persistently elevated transaminases, or metabolic risk factors should be considered for liver biopsy 2, 3