6, 8 or 10 glasses: how much water do we really need every day?

Verified on 11/17/2023 by PasseportSanté
6, 8 ou 10 verres : de quelle quantité d'eau avons-nous vraiment besoin chaque jour ?

Drinking is essential, of course! But how much do we really need every day?

« Water is life

Do we really need a reminder of the benefits of hydration? No. Most of the body is made up of water, which is at the heart of everything we do.

In other words, we put fuel back into our bodies so that they are always balanced in terms of water. Water is excreted through urine and perspiration in particular, which is why we need to drink sufficient quantities.

Everyone knows it, but too many people still neglect it today! In fact, it’s a good idea not to wait until you’re thirsty to hydrate!

How much should we drink?

Numerous studies have tackled the question of how much water a man needs every day. In 2007, the Mayo Clinic in Rochester (Minnesota, USA) took its turn in assessing our daily requirements. Firstly, they point out that many factors vary this figure:

  • Increased physical activity;
  • Hot and humid weather;
  • Dry air and life at altitude, therefore less humid;
  • Having an illness.

It’s often said that we need to drink 1L of water a day. According to American experts, this is far too little. They recommend an average daily water intake of 2.7L.

However, you don’t need to drink almost 3L of liquid every 24 hours. In fact, a significant proportion of the body’s water intake comes fromfood. This represents around 20% of our water intake. A perfectly hydrated person drinks an average of 2.2L of water per day.

One glass of water corresponds to an average of 25 cL of water, so that’s equivalent to drinking 9 glasses a day. So remember to drink 2 or 3 glasses with each meal and keep well hydrated during the day, and you’ll easily reach the 2.2L that may seem important at first!

How do I know if I’m drinking enough?

In reality, very few people actually calculate their water consumption on a regular basis. Difficult to put in place, or judged too unhelpful, paying attention to how much we drink is often too restrictive.

However, there are a few quick and simple checks you can make to find out if you’re drinking enough. First… if you’re not thirsty! The body is fantastic: it tells you everything you need! If you don’t feel thirsty, you’re not in urgent need of water.

Beware, however, of aging. As we age, we feel less thirsty, and it’s advisable to stay hydrated even if you don’t feel the need.

You can also monitor the color of your urine. If it’s colorless or slightly yellow, your fluid intake is satisfactory!