1. Nathan DM, Davidson MB, DeFronzo RA, et al. Impaired fasting glucose and impaired glucose tolerance: implications for care. Diabetes Care. 2007;30(3):753-759.
2. Centers for Disease Control and Prevention. National Diabetes Statistics Report: Estimates of Diabetes and Its Burden in the United States, 2014. Atlanta, GA: U.S. Department of Health and Human Services; 2014.
3. Centers for Disease Control and Prevention. Awareness of prediabetes—United States, 2005-2010. MMWR Morb Mortal Weekly Rep. 2013:62(11): 209-212.
4. Centers for Disease Control and Prevention. Prediabetes facts. http://www.cdc.gov/diabetes/basics/prediabetes.html. Accessed 2014.
5. American Diabetes Association. Diagnosis and classification of diabetes mellitus. Diabetes Care. 2014;37(Suppl 1):S81-S90.
6. American Diabetes Association. Standards of medical care in diabetes—2014. Diabetes Care. 2014;37(Suppl 1):S14-S80.
7. Stull AJ. Lifestyle approaches and glucose intolerance [published online ahead of print October 14, 2014]. Am J Lifestyle Med. doi: 10.1177/1559827614554186.
8. Deng R. A review of the hypoglycemia effects of five commonly used herbal food supplements. Recent Pat Food Nutr Agric. 2012;4(1):50-60.
9. Graf BL, Raskin I, Cefalu WT, et al. Plant-derived therapeutics for the treatment of metabolic syndrome. Curr Opin Investig Drugs. 2010;11(10):1107-1115.