Glug, glug, glug – how much water DO you need to drink per day?

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According to research posted in Science, eight glasses of water a day is too much. As someone who needs water with a little flavour, this is good news! No one is quite sure where that figure (eight glasses) came from, although I’m assuming someone divided two litres by a 250ml glass size and came up with eight glasses!

The conclusion seems to be that how much water you need depends on the kind of person you are. Someone who has a desk job and doesn’t move around as much will have a smaller ‘water turnover’ than a professional athlete and therefore, they need less water. Water turnover is the total movement of water throughout the body, including what is taken in and what is lost. Depending on age, climate, gender and living conditions this will vary.

So, there is one size fits all when it comes to drinking water – it all depends on the kind of person you are. Given the benefits of water, I don’t think there’s anything wrong with aiming to drink eight glasses per day. As always, the key is to listen to your body and ensure that you remain hydrated.


Do You Need to Drink Eight Glasses of Water a Day? It’s Complicated

Variation in human water turnover associated with environmental and lifestyle factors

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