What is the water given by the coffee shop? will the diuretic effect and effect of drinking black coffee dehydrate?
According to folk legend, coffee is a diuretic. So coffee will make you dehydrated, and even Guangzhou Aboriginal Code worker No. 5 has often advised that drinking coffee promotes human excretion, boosts metabolism and is easy to be dehydrated, so remember to drink plenty of water when drinking coffee.
Whenever mentioned, the feeling of being wronged arises spontaneously. First was stupefied for a moment, and then thought: coffee is brewed with water, it is also water!

The theory of coffee dehydration comes from an article entitled "tolerance and cross tolerance under the diuretic effects of caffeine, theobromine and theophylline". This article is almost 100 years old, but its conclusions based on science in the 1920s are still believed.

Dehydration is caused by the inability to replenish water immediately after consuming a large amount of water. the symptoms of dehydration are thirst, headache, dizziness, weakness, even coma, shock and so on.
According to a study in the Journal of Sports Science and Medicine (Journal of Science and Medicine in Sport), an average of 300mg of caffeine a day leads to 15 per cent of body fluid loss.

If a coffee with an ideal extraction rate (18%) is brewed with 15 grams of powder at 1:15, the caffeine content is 32.4mg, and the extract of such coffee is about 200ml. If the water loss rate is 15% of 300mg of caffeine, it will still make us replenish about 1.5L of water.

It is often heard that people should drink 8 glasses of water a day. In fact, this varies from person to person. The National Institute of Science, Engineering and Medicine (National Academies of Sciences, Engineering, and Medicine) recommends that women eat 2.7L of water a day, while men eat 3.7L a day. The article also points out that the food we eat every day can meet 20% of our daily water intake.

Water as a tasteless liquid, compared with coffee, of course, coffee is more attractive, smells fragrant, and tastes sweet and sour.
Coffee as a kind of liquid, of course, can also be used as a way to replenish water, although it is beneficial to urine, there is no denying that coffee is brewed with water, it is also water!

If you want to replenish water, of course, it is faster to drink water directly. After all, caffeine is what makes us want to run water.
However, if the partner in front of the screen dislikes that the water is tasteless, it is feasible to use coffee to replenish the water, that is, you need to make a discount when calculating your water intake. After all, life is boring, isn't it good to add a little flavor to life?
In addition, contemporary workers are sleepy in spring, tired in summer, tired in autumn and hibernating. Wouldn't it be good to have a cup of coffee to wake up?

However, if we think about whether the amount of water we drink in a day is really enough to drink 2 litres of water, even if we drink 2 litres of coffee a day, it is impossible to have 2 litres of coffee. I blamed coffee for losing more water when I didn't get enough water. Isn't it a bit too early to define it?
OK, having said so much, the next time Guangzhou Aboriginal Code worker No. 5 says to remember to drink more water, he will surely pour two more cups of coffee with confidence!
Photo Source: Internet
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