Is the hot cup of coffee early in the morning part of your daily routine?
One study shows why you should change this habit.
Every German citizen consumes an average of 166 liters per year, according to the German Coffee Association. This makes coffee the absolute favorite drink in this country. The drink is said to have many healthy effects - but there are also contraindications. For example, people with cardiac arrhythmias should pay close attention to physical symptoms after drinking coffee and,
if there are complaints, reduce the amount or do without coffee altogether
, as the German Heart Foundation informs.
The following applies to healthy adults: up to five cups of coffee spread over the day have no negative health effects.
According to Techniker Krankenkasse (TK), the maximum recommended daily dose of coffee is 400 milligrams (this corresponds to around four cups of 200 milliliters of filter coffee or four simple espresso).
As a single dose, amounts of up to 200 milliliters do not pose a health risk.
TK cites an opinion by the European Food Safety Authority (EFSA) from 2015. But not only the amount plays a role:
the time of consumption also influences how healthy coffee really is.
Survey on nutrition
+
The afternoon coffee is a welcome break in everyday work for many.
© Gustafsson / Imago
Coffee before breakfast increases blood sugar levels immensely
For example, a British team of researchers from the University of Bath has investigated how the timing of coffee consumption affects blood sugar levels. For their study, the researchers from the Center for Nutrition, Exercise & Metabolism examined 29 adults using oral glucose tolerance tests. On the one hand, the quality of sleep, but also the influence of coffee consumption on the body was analyzed. The result of the study: the quality of sleep has no influence on blood sugar levels, but coffee does. The values increased in those test persons who had drunk coffee on an empty stomach around an hour after waking up (approx. 300 milligrams of caffeine as black coffee).
The black coffee drunk before breakfast had raised blood sugar by around 50 percent.
The researchers' conclusion: "Morning coffee (...) can impair glucose tolerance and insulin sensitivity in healthy adults".
The study, which was published in the British Journal of Nutrition, states: "Individual peak plasma glucose and insulin concentrations were not affected by sleep quality, but were higher after coffee consumption".
An increased blood sugar level significantly promotes the development of insulin resistance and thus diabetes.
In order to keep the blood sugar level constant, the researchers recommend
drinking coffee only with or after breakfast.
However, due to the low number of participants, the study results would have to be substantiated by further studies, it is said.
(jg)
More sources: https://www.herzstiftung.de/ihre-herzgesundheit/;
https://www.tk.de/techniker/magazin/ernaehrung/
Don't want to miss any health news?
Here you can subscribe to the Merkur health newsletter
Read more
: Burned
your
tongue?
This trick instantly relieves the pain
Slim and fit quickly: six healthy sugar alternatives
Slim and fit quickly: six healthy sugar alternatives
List of rubric lists: © Gustafsson via www.imago-images.de
