The investigators conduct a randomized, double-blind, placebo-controlled study to investigate the effects of Panax Ginseng C.A. Mey Extract on liver function in adults for 8 weeks.

Previous studies have indicated that Panax Ginseng C.A. Mey Extract may have the ability to improve liver function. Therefore, the investigators conduct a randomized, double-blind, placebo-controlled study to investigate the effects of the Panax Ginseng C.A. Mey Extract on liver function in adults; the safety of the compound are also evaluate. The Investigators examine AST, ALT, GGT, and other metabolic parameters at baseline, as well as after 4 and 8 weeks of intervention. Sixty adults were administered either 600 mg of Panax Ginseng C.A. Mey Extract or a placebo each day for 8 weeks;

Inclusion Criteria:

• ALT ranging from upper limit of reference to three times of upper limit

Exclusion Criteria:

• Abnormal liver or renal function (i.e., serum aminotransferase activity > 3 times of upper limit of reference range and serum creatinine concentrations > 1.2 mg/dL)
• Diabetes (diagnosed clinically or fasting glucose level > 126 mg/dL)
• History of viral hepatitis or cancer
• Uncontrolled hypertension
• History of serious cardiac disease such as angina or myocardial infarction
• History of gastrectomy
• History of medication for psychiatric disease
• Administration of oriental medicine including herbs within the past 4 weeks