Coffee and caffeine intake and incidence of type 2 diabetes mellitus: a meta-analysis of prospective studies.

Increased consumption of coffee and caffeine may decrease type 2 diabetes mellitus development risk in both men and women.

The aim of this research work was to evaluate the intake of coffee and caffeine in relation to type 2 diabetes mellitus risk. Researchers conducted a thorough meta-analysis on data obtained from several published literatures on the subject.

Researchers found a low incidence of type 2 diabetes mellitus among regular consumers of caffeinated and de-caffeinated coffee and caffeine-containing beverages. The type 2 diabetes mellitus protective actions of coffee and caffeine were observed to stronger in women, non-smokers, and individuals with body mass index (BMI) of less than 25. Additional intake of extra 2 cups of caffeinated coffee, decaffeinated coffee or 200mg of caffeine per day was found to reduce type 2 diabetes mellitus risk by 11-14% in this study. The results of this study provide evidence that lesser risk of type 2 diabetes mellitus is associated with high consumption of coffee and caffeine.

Note: This study seems highly suspect since other studies have found that caffeine increases diabetes risk. 

Research Summary Information

  • 2014
  • Jiang X, Zhang D, Jiang W.
  • Department of Epidemiology and Health Statistics, Medical College, Qingdao University, No. 38 Dongzhou Road, Qingdao, 266021, Shandong, People's Republic of China.
  • No, Free full text of study was not found.
  • No source of funding disclosure found
  • No potential conflicts disclosure found
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