Effects of a 12-Week Solid Beverage Intervention on Suboptimal Health Status

This is a randomized, double-blind, placebo-controlled clinical trial targeting Chinese overweight/obese subjects aged 18-60 years with mild metabolic abnormalities. A total of 70 study participants are planned to be enrolled (the sample size requirement will be satisfied if the final valid dataset includes no fewer than 60 participants). The study aims to explore the effects of 12-week product intervention on glucose and lipid metabolism, body composition, and indicators related to metabolic syndrome. This study adopts a double-blind design. All study participants will be randomly assigned into two groups. One group will receive the investigational product, a solid beverage containing postbiotics BPL1, \*Aronia melanocarpa\* fruit extract, apple polyphenols, D-allulose, inulin, lutein and other ingredients. The other group will receive the placebo control, a solid beverage identical to the investigational product in appearance, taste and packaging but without the above active ingredients.