This study is a multi-center, four arms, randomized, double-blind controlled trial. 200 Eligible participants of 25 to 45 years old with overweight will be randomized in four equal size groups to receive one of the four products of probiotics with and without prebiotics and consume one bottle once in a day for 3 months. All participants will visit the study site for 3 times, once a month, all relevant clinical data will be captured, and recorded in to CTMS (Clinical Trial Management System). Data will be analyzed and reported after the completion of the study.
The goal of this interventional study is to evaluate the efficacy of probiotics with prebiotics on overweight.~200 eligible participants with overweight will be enrolled and randomized to consume four study products for 3 months.~Reseachers will compare the four groups to evaluate whether there is significant improvement on overweight for participants in the study product of probiotics with prebiotics.