Clinical Research Directory

Inclusion Criteria: * Adults aged 30-65 years, both male and female. * Participants meeting any of the following criteria for prediabetes: 1. Fasting blood glucose 100-125 mg/dL 2. HbA1c 5.7-6.4% 3. Previous clinical records indicating 2-hour OGTT glucose levels of 140-199 mg/dL * Body mass index (BMI) between 24-35 kg/m², with waist circumference recorded (men ≥90 cm; women ≥80 cm). * Stable lifestyle (including diet, physical activity, and sleep habits) during the past three months. * No use of blood glucose-regulating supplements prior to or during the study. * Willingness to comply with study procedures and complete all required assessments. * Provision of written informed consent. Exclusion Criteria: * Diagnosis of type 2 diabetes mellitus (HbA1c ≥6.5% or physician diagnosis). * Current use of antidiabetic medications (e.g., metformin, DPP-4 inhibitors, SGLT2 inhibitors, GLP-1 receptor agonists, or insulin). * Use of medications that may affect blood glucose levels, such as corticosteroids, antipsychotic drugs, or unstable thyroid medications. * Presence of severe hepatic, renal, cardiovascular diseases, active cancer, or gastrointestinal malabsorption disorders. * Pregnant or breastfeeding women, or those planning to become pregnant. * Body weight change exceeding ±5% within the past three months, or currently following a weight-loss program or special diet. * History of alcohol abuse or substance misuse. * Individuals engaged in night shift or rotating shift work. * Known allergy to any component of the study product. * Participation in another clinical trial within the past 1 month, or antibiotic use within the past 8 weeks (if gut microbiota analysis is involved). * Individuals who are students currently taught by Associate Professor You-Cheng Shen or Dr. Jing-Bin Lin, or laboratory staff, assistants, or employees with a supervisory or subordinate relationship with the investigators.