This is a multi-center, randomized, double-blind, placebo-controlled study in approximately 104 subjects (52 per group) to evaluate the effectiveness of an herb and mineral combination product on fasting serum glucose levels in subjects with impaired fasting glucose. The study consists of 5 visits: a Screening visit, followed by a Baseline visit (at which eligible subjects will be randomized to product to consume throughout the 12-week supplementation period), followed by Supplementation period visits at 3, 6 and 12 weeks after baseline.