Drinking eight glasses of water a day is too much, say scientists

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A new study has suggested we don’t need to drink as much water as we thought (Credit: Getty)

How much water should you drink each day?

It’s a question that goes back and forth with study after study claiming to land on the magic amount of water consumption for the average person.

Typically, we’ve been told to consume around six to eight mugs a day. That’s what the NHS says, after all.

If an average mug is 350ml, the top end of that scale works out to 2.8 litres a day.

But now scientists say that may be too much.

Research from the University of Aberdeen published in Science this week shows the recommended intake of (around) two litres of water a day seldom matches our actual needs and in many situations is too high.

Given around half of our daily intake of water comes from food, scientists estimate we only really need around 1.5 to 1.8 litres per day.

Previous research in this area depended on surveys applied to small samples of people, but scientists have now collaborated across the world to measure water turnover using a stable isotope technique.

They surveyed 5,604 people aged between eight days and 96 years old, from 23 different countries.

Research involved people drinking a glass of water in which some of the hydrogen molecules were replaced by a stable isotope of the element called deuterium, which is found naturally in the human body and is completely harmless.

Active people, obviously, will require a higher water intake (Credits: Getty Images/Maskot)

The rate of elimination of the extra deuterium reveals how quickly water in the body is turning over.

Those living in hot and humid environments and at high altitudes as well as athletes, pregnant and breastfeeding women need more water as the …read more

Source:: Metro News

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