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Coffee may reduce diabetes by 25%, study says



To the already reported benefits of coffee, namely on some neurological (infant hyperactivity, Alzheimer’s and Parkinson’s diseases), metabolic disorders (diabetes mellitus, gallstones, liver cirrhosis), and gonadal and liver function properties [11] we will have to add a new property, its capability to considerably lower the incidence of type 2 diabetes, or at least that's what it has been announced in a report published by the Institute for Scientific Information on Coffee (ISIC).

Reports published on the subject suggest that every additional cup of coffee up to 6-8 cups /day (regular or decaffeinated) is associated with a 5-10% lower risk of developing type 2 diabetes [10]. 

Rich in antioxidants and nutrients, coffee has generally been associated with a healthy profile in consumers [11], but pay attention, depending on the quantities consumed, coffee consumption can affect the intake of some minerals (K, Mg, Mn, Cr), niacin and antioxidant substances [12], something to be considered if we are hooked to it. Image: See credits under ref. [14] below.


Family: Rubiaceae

Genus: Coffea

Common name: Coffee


CURIOSITY: Brazil is still the biggest producer of coffee in the world, producing one-third of the world's coffee though 80% of that is Coffea arabica [6].

The study of reference presented some figures which are quite remarkable, three to four cups of coffee per day is associated with an approximately 25 percent lower risk of developing type 2 diabetes [10]. And this study is not the only one in the subject, others have already provided evidence for the overall beneficial effects of coffee consumption in relation to type-2 diabetes [11].



recent analysis of existing studies on coffee and the risks associated to the intake of coffee performed by the Department of Gastroenterology of the Fudan University in Shanghai, shows that out of 59 studies found in different medical databases, the overall outcome was that an increase in consumption of one cup of coffee per day was associated with a 3% reduced risk of cancers. 

Disclaimer: The information presented in this website is not intended to prescribe or give in any way or form medical advice, recommend or diagnose. Please read the disclaimer at the bottom of this page for more info.


[1] Coffee consumption and risk of cancers: a meta-analysis of cohort studies. Department of Gastroenterology, Huadong Hospital, Fudan University, Shanghai 200040, PR China.
[2] Coffee and tea intake and risk of breast cancer. Bhoo Pathy N, Peeters P, van Gils C, Beulens JW, van der Graaf Y, Bueno-de-Mesquita B, Bulgiba A, Uiterwaal CS. Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Stratenum 6.131, PO Box 85500, 3508 GA Utrecht, The Netherlands.
[3] Caffeine consumption and the risk of breast cancer in a large prospective cohort of women. Ishitani K, Lin J, Manson JE, Buring JE, Zhang SM. Division of Preventive Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02215, USA.
[4] Coffee, tea, caffeine and risk of breast cancer: a 22-year follow-up. Ganmaa D, Willett WC, Li TY, Feskanich D, van Dam RM, Lopez-Garcia E, Hunter DJ, Holmes MD. Department of Nutrition, Harvard School of Public Health, Boston, MA 02115, USA.
[5] Green tea and the prevention of breast cancer: a case-control study in Southeast China. Zhang M, Holman CD, Huang JP, Xie X. The School of Population Health, The University of Western Australia, 35 Stirling Highway, Crawley, Perth, WA 6009, Australia.
[6] Consumption of antioxidant-rich beverages and risk for breast cancer in French women. Hirvonen T, Mennen LI, de Bree A, Castetbon K, Galan P, Bertrais S, Arnault N, Hercberg S. UMR Institut Nationale de la Santé et de la Recherche Médicale Unit 557/INRA Unit 1125, L'Institut Scientifique et Technique de la Nutrition et de l' Alimentation/Conservatoire National des Arts et Métiers, Paris, France
[7] Studies on coumarins and coumarin-related compounds to determine their therapeutic role in the treatment of cancer. Lacy A, O'Kennedy R. Applied Biochemistry Group, School of Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland.
[8] Inhibitory effect of caffeine on pacemaker activity in the oviduct is mediated by CAMP-regulated conductances. R. E. Dixon, S. J. Hwang, F.C. Britton, K. M. Sanders and S. M. Ward. British Journal of Pharmacology. 2011; DOI: 10.1111/j.1476-5381.2011.01266.x Yu X, Bao Z, Zou J, Dong J.
[9] Plant names Porcher Michel H. et al. 1995 - 2020, Sorting Coffea Names. Multilingual Multiscript Plant Name Database - A Work in Progress. Institute for Land & Food Resources. The University of Melbourne. < http://gmr.landfood.unimelb.edu.au/Plantnames/Sorting/Coffea.html > (2006).
[10] Institute for Scientific Information on Coffee (ISIC)
[11] Association of Moderate Coffee Intake with Self-Reported Diabetes among Urban Brazilians Liliane M. M. Machado,1 Teresa H. M. da Costa,1,* Eduardo F. da Silva,2 and José G. Dórea1
[12] Is coffee a functional food? Dórea JG, da Costa TH. Department of Nutrition, Faculdade de Ciências da Saúde, Universidade de Brasília, Brazil.
[13] Wikipedia article on Robusta coffee under the Creative Commons Attribution-ShareAlike License.
[7] Pixabay image under Public Domain License CC0 1.0 Universal (CC0 1.0).