STUDY DESIGN: This is a multi-center placebo-controlled, randomized (1:1), double masked trail to assess the effects of cinnamon (cinnamomum burmannii) on glucose homeostasis over a 12- week period. FPG, HbA1c, and other measures of glucose metabolism will be collected at baseline, after 6 weeks, and at the end of the 12-week study period. Participants will be prompted to report Adverse Events (AE) at the study visits or anytime during the study period.