A randomized, double-blind, placebo-controlled study was conducted on 120 subjects with age between 20 and 65 years, nondiabetic (fasting blood glucose \<126 mg/dL and 2-hour blood glucose \<200 mg/dL), and overweight (25 kg/m2 ≤ body mass index (BMI) \< 30 kg/m2). Over a 12 week test period, the probiotic group consumed 2 g of powder twice a day containing L. curvatus HY7601 and L. plantarum KY1032, while the placebo group consumed the same product without probiotics for 12 weeks.
