A common medical problem that can be seen in overweight people is nonalcoholic fatty liver disease. With the steady rise in obesity in this country, doctors are seeing more and more of this problem. The typical patient with NAFLD is middle aged, obese, and commonly 20% above their ideal weight. Abnormal liver function tests done during routine blood testing is typically how patients discover they have this problem. The common sense approach to dealing with NAFLD is weight reduction. Studies have shown that losing 10% of body weight can result in improvement of liver function tests.