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Diabetic? Go easy on the coffee!
[mis à jour le 30 June 2009 à 18h07]
Will black coffee soon be a thing of the past for diabetics? Well, we haven’t reached that point just yet, but the results of an American study show clearly that caffeine increases glycaemia levels. The only question mark, and it’s a big one, is that the study only involved 10 patients.
These were in fact keen coffee drinkers who suffered from type 2 diabetes. All followed a diet appropriate to their condition and exercised regularly. On the first day of the experiment, the American team administered capsules containing the equivalent of 4 cups of coffee. Then, the next day, the participants were given a placebo.
At the end of this short study, the author reports an average increase of 8% in glycaemia levels on the first day. For the time being no explanation has been offered. Only one possibility has been suggested, based on the fact that caffeine increases the production of adrenaline, a hormone associated with increased glycaemia levels.
It is therefore essential that this study be extended to larger groups. Meanwhile, coffee and tea are allowed, but in moderation… For those who prefer to err on the side of caution, there is always red tea: the famous rooibos. Grown in South Africa, red tea does not contain theine and is rich in vitamin C.
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