Fatty liver may cause no damage, but sometimes the excess fat leads to inflammation of the liver. This condition, called steatohepatitis, does cause liver damage. Since you are non alcoholic, the condition is called Nonalcoholic Steatohepatitis, or NASH. The liver does play an important role in the metabolism or breakdown of fats. Something goes wrong in this process of metabolism, but it is still not known what does cause fat to build-up in the liver. It is known that fat accumulates in the liver with a number of conditions. The most common is Obesity. Fatty liver is also associated with Diabetes mellitus, High blood triglycerides, and the Heavy use of Alcohol (not in your case). It may occur with certain illnesses such as Tuberculosis and Malnutrition, in excess vitamin A in the body, or the use of certain drugs such as valproic acid. So how is this fatty liver treated? There are no medical or surgical treatments for fatty liver, but there are some steps you can take that may help prevent or reverse some of the damage. In general, if you have fatty liver, and in particular NASH, you should: 1. Lose weight safely! That usually means losing no more than one or two pounds a week. 2. Lower your triglycerides through diet, medication or both. Hence low fatty food & whole grain food is better. 3. Avoid alcohol. 4. Control your diabetes, if you have it 5. Eat a balanced, healthy diet 6. Increase your physical activity 7. Get regular checkups from a doctor who specializes in liver care. 8. Multivitamins may not be useful for reducing the damage. However if your doctor has suggested them for other reasons you may continue them. As mentioned no specific medicines apart from the Lifestyle measures are proven good. Following the above measures bring back the size of the liver to normal in few months.