2 liters of water - how many glasses? Is it worth to reproach yourself for a low standard

Modern nutritionists recommend to adhere to the basic rule of nutrition and a healthy lifestyle - to drink a day 2 liters of water. This is how many glasses you need to drink, are you surprised? Where did this rule come from and should it be respected in all severity, corrupting itself for every unfinished glass?

2 liters of water - how many glasses?

First, answer the main question: 2 liters of water - this is 8 glasses. In the calculation is a normal faceted glass filled to the brim. In dietology, this rate of water consumption is called - "the rule of 8 glasses", but no one knows for sure the root cause of its appearance.

Where did the "rule of 8 glasses" come from?

Once the question "2 liters of water - this is how many glasses?" Interested an eminent neurologist from the US named Heinz Valtin. He was interested in this rule, and he decided to conduct a series of studies confirming the "rule of 8 glasses."

He came to the conclusion that such a recommendation appeared as a result of a scientific misunderstanding. Even during the Second World War, the US government department responsible for food standards recommended the use of water for the assimilation of kilocalories. The calculation was made as follows: the daily rate of kilocalories is about 1900 kcal, for each kcal should account for at least 1 ml of water, in total we get almost 2 liters every day.

But then a lot of factors were not taken into account, which ultimately should make adjustments to the rate of water consumption.

To each - its own norm

It turns out that the norm can be strictly individual and depend on the following points:

• Climatic conditions - in too hot weather the body gets rid of more liquid in the form of sweat.
• Nutritional regimen and consumed beverages - half the daily moisture rate can be obtained from food, whereas tea or coffee has a diuretic effect and contributes to dehydration.
• Lifestyle - in sports or heavy physical activity, the body loses more moisture. It is also known that the body of a nursing mother a day loses 1.5 times more water and calories than the body of an ordinary person.

The rule of glasses today begins to melt day by day, for it is quite clear that a fragile girl from an office needs less water than an athlete or a longshoreman. Can it be possible to master at least one glass of baby?

How to understand that water is not enough?

In 2004, the same department recognized its long-standing mistake and published new data - a person is recommended daily to drink much more than 2 liters of water. This is how many glasses you need to drink, you ask? It does not really matter!

Not a single unfinished glass has any influence whatsoever, it is necessary to drink as much water as you want. There are studies that prove that a healthy person without unnecessary effort uses the right amount of liquid for himself, along with food and drinks. Therefore, you do not need to know how much water there is in the glass. It is recommended only to remember to replenish moisture reserves in hot weather and under heavy loads to prevent dehydration. And it's best to just drink when you want.