Efficacy and Safety of Mate Extracts on Decrement of Body and Abdominal Fat in Obese Subjects

Inclusion Criteria: * Volunteers aged 19 to 65 years * 25 kg/m2 ≤ BMI ≥35 kg/m2 * Ability to give informed consent Exclusion Criteria: * Significant variation in weight (more 10%) in the past 3 month * Cardiovascular disease, neurologic or psychiatric disease, renal, pulmonary and hepatic abnormalities * History of disease that could interfere with the test products or impede their absorption, such as gastrointestinal disease (Crohn's disease) or gastrointestinal surgery (a caesum or enterocele surgery are included) * Laboratory test, medical or psychological conditions deemed by the investigators to interfere with successful participation in the sutdy * Allergic or hypersensitive to any of the ingredients in the test products * Pregnancy or breast feeding * Used antipsychosis drugs therapy within past 2 months * History of alcohol or substance abuse (21 units/week over) * Participation in any other clinical trials within past 3 months