Over the past 50 years, there has been a dramatic increase in the prevalence of interrelated metabolic disease states, including obesity, insulin resistance, and type 2 diabetes mellitus. In modern Western nations, the population-based prevalence of insulin resistance is approaching 20%, and type 2 diabetes is now the most common endocrine disorder in adults. No longer a disease reserved for the aging population, type 2 diabetes is also on the rise...