Weight loss, control of diabetes, and control of cholesterol can decrease the amount of fat in your liver and is the best thing to treat diffuse fatty infiltration of the liver. Would still recommend medical review of the condition as there will be degrees of severity that can progress from causing minimal issues all the way through to cirrhosis of the liver. With common dietary habits today and the prevalence of fast food, a finding of fatty liver can be quite common unfortunately. Lets hope reversal of the condition is simple!