Continuous Glucose Monitoring for Glucose and Weight Management in Prediabetes and Non-severe Type 2 Diabetes: A Prospective Community-based (Workplace) Cohort Study

Inclusion Criteria: * Subjects over the age of 19 * Patients with type 2 diabetes * Fasting blood glucose ≥ 126 mg/dL or * HbA1c ≥ 6.5% or * Type 2 diabetes by clinical history and treated with antidiabetic medications or lifestyle Modifications * Patients with prediabetes * Fasting blood glucose 100-125 mg/dL * HbA1c 5.7-6.4% * Willing to participate in the study Exclusion Criteria: * Subjects less than 19 years old * Patients with type 1 diabetes * Pregnant at the time of screening or planning to become pregnant during the study * Severe chronic diseases such as cancer, stroke, proliferative retinopathy, myocardial infarction, chronic renal disease, or amputation of a diabetic foot * Diagnosed with or treated for myocardial infarction, stroke, end-stage renal disease, liver failure, or chronic lung disease within the past year * Severe liver disease (e.g., cancer, liver cirrhosis, hepatitis B, hepatitis C) * Diseases of the biliary tract, thyroid disorders, autoimmune disorders, or acute infections * Planning to be admitted to a hospital within 2 months * Unable to participate in the mobile intervention study as determined by the investigator