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  • With Mayo Clinic endocrinologist

    Maria Collazo-Clavell, M.D.

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Question

Diabetes: Does alcohol and tobacco use increase my risk?

Does alcohol and tobacco use increase the risk of diabetes?

Answer

from Maria Collazo-Clavell, M.D.

Yes, alcohol and tobacco use increases the risk of type 2 diabetes.

While studies show that drinking moderate amounts of alcohol (one drink a day for women and two drinks a day for men) may actually lower the risk of diabetes, the opposite is true for people who drink greater amounts of alcohol. Heavy alcohol use can cause chronic inflammation of the pancreas (pancreatitis), which can impair its ability to secrete insulin and ultimately lead to diabetes.

Tobacco is equally harmful. Tobacco use can increase blood sugar levels and lead to insulin resistance.  And 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.

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References
  1. Pancreatitis. National Institute of Diabetes and Digestive and Kidney Diseases. http://digestive.niddk.nih.gov/ddiseases/pubs/pancreatitis/. Accessed March 18, 2009.
  2. Mukamal K. Overview of the risks and benefits of alcohol consumption. http://www.uptodate.com/home/index.html. Accessed March 18, 2009.
  3. Willi C, et al. Active smoking and the risk of type 2 diabetes: A systematic review and meta-analysis. Journal of the American Medical Association. 2007;298:1654.
  4. Chiolero A, et al. Consequences of smoking for body weight, body fat distribution, and insulin resistance. American Journal of Clinical Nutrition. 2008;87:801.
  5. Manson JE, et al: A prospective study of cigarette smoking and the incidence of diabetes mellitus among U.S. male physicians. American Journal of Medicine. 2000;109:538.

AN00548

July 11, 2009

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