The Effect of Intervention With Probiotic K56 on Body Fat Reduction in Obese Subjects

Inclusion Criteria: * Obesity : BMI\>=30kg/m2,or percent body fat(PBF) \>=25% for male, \>=30% for female. （Note: If PBF was eligible, it was recommended that 26 ≤ BMI ≤ 40） * Age: 40 - 65 years old adults * Who has the conditions to preserve the test samples at low temperature throughout the whole process Exclusion Criteria: * Patients with severe chronic diseases（heart, liver, kidney, hematopoietic system, tumor and other serious diseases, mental illness and organ surgery history, etc.) and complications; * Patients with severe allergy and immunodeficiency; * Patients with a clear history of gastrointestinal diseases (ulcer, irritable bowel syndrome, etc.); * History of intervention with fat-reducing drugs or health products in the past 2 months * Take weight control measures (diet, exercise, etc.) within the past month * Participation in other clinical trials within the past 3 months * who have used antibiotics in the past 2weeks ; * Those who cannot guarantee to maintain their current lifestyle during the trial period * Those who fail to consume the tested samples as required, or fail to follow up on time, resulting in failure to determine the efficacy