Methods and compositions comprising peroxisomal and/or mitochondrial beta oxidation stimulating agents to reverse or resolve, slow the progression of, treat or prevent the development of fatty liver and conditions stemming from fatty liver, such as NASH, liver inflammation, cirrhosis and liver failure. An active agent that by itself is associated with an increased risk of fatty liver development and conditions stemming from fatty liver, such as NASH, liver inflammation, cirrhosis and liver failure, may be administered in combination with peroxisomal and/or mitochondrial beta oxidation stimulating agents. A combination regimen involving such agents, as simultaneous or concomitant therapy, or as a fixed dosage form, is also provided.