Does alcohol and tobacco use increase the risk of diabetes?
Answers from M. Regina Castro, M.D.
Yes, alcohol and tobacco use increases the risk of type 2 diabetes.
Although studies show that drinking moderate amounts of alcohol may actually lower the risk of diabetes, the opposite is true for people who drink greater amounts of alcohol.
Moderate alcohol use is one drink a day for women of all ages and men older than age 65, and up to two drinks a day for men age 65 and younger.
Too much alcohol can cause chronic inflammation of the pancreas (pancreatitis), which can impair its ability to secrete insulin and ultimately lead to diabetes.
Tobacco use can increase blood sugar levels and lead to insulin resistance. The more you smoke, the greater your risk of diabetes.
Heavy smokers — those who smoke more than 20 cigarettes a day — almost double their risk of developing diabetes, when compared with nonsmokers.
M. Regina Castro, M.D.
July 30, 2014
- Pancreatitis. National Digestive Diseases Information Clearinghouse. http://digestive.niddk.nih.gov/ddiseases/pubs/pancreatitis/. Accessed April 25, 2014.
- Mukamal K. Overview of the risks and benefits of alcohol consumption. http://www.uptodate.com/home. Accessed April 25, 2014.
- Shi L, et al. Physical activity, smoking, and alcohol consumption in association with incidence of type 2 diabetes among middle-aged and elderly Chinese men. Plos One. 2013;8:e77919.
- Cena H, et al. Prevalence rate of metabolic syndrome in a group of light and heavy smokers. Diabetology & Metabolic Syndrome. 2013;5:e1.
- Heianza Y, et al. Role of alcohol drinking pattern in type 2 diabetes in Japanese men: The Toranomon Hospital Health Management Center Study 11. American Journal of Clinical Nutrition. 2013;97:561.
- Zhang L, et al. Association between passive and active smoking and incident type 2 diabetes in women. Diabetes Care. 2011;34:892.
- Dietary Guidelines for Americans, 2010. U.S. Department of Health and Human Services. http://www.cnpp.usda.gov/DGAs2010-PolicyDocument.htm. Accessed May 6, 2014.