How Much Water Should We Drink?

How Much Water Should We Drink?

In a moderate climate, an inactive adult can lose as much as 2.5 litres of water every day just through breathing, sweating and defecation. Increased physical activity, such as rigorous exercise, and hot and humid weather means that even more water will leave the body.

It is important to compensate the body's loss of fluids to assure adequate hydration. This can be achieved through drinking adequate amounts of water, as well consuming water contained in different foods and beverages.

Water requirement varies between individuals; this is further determined by weight, health and according to climate and levels of physical activity.  

The European Food Safety Authority (EFSA) recommends a daily water intake of 1. 6 litres for women or 2.0 litres for men, who reside in a moderate climate and partake in normal physical activity.

Read EFSA’s scientific opinion on adequate intake for water for more information

Even a slight loss of water can have a significant impact on the body. If we do not hydrate ourselves sufficiently, there is a risk of dehydration.

Signs of mild dehydration can include:

  • dry mouth
  • fatigue
  • thirst
  • decreased urine volume
  • reduction of physical and mental performance
  • headache
  • dizziness

 When the sensation of thirst becomes noticeable, our body is already mildly dehydrated. It is important to keep in mind that even a slight loss of water can impair both physical and cognitive performances.

 

National Health Recommendations for Drinking Water

Belgium:
Conseil Supérieur de la Santé
Plan National Nutrition Santé/National Voedings-en Gezondheid- Plan
Belgium.pdf

Bulgaria:
Bulgaria.pdf

Croatia:
Hrvatski zavod za javno zdravstvo
Croatia.pdf

Czech Republic:
Czech Republic.pdf

Denmark:
Denmark.pdf

France:
Agence française de sécurité sanitaire des aliments (AFSSA)
France.pdf

Germany:
Deutsche Gesellschaft für Ernährung e.V.
Ministerium für Ernährung und Ländlichen Raum Baden-Württemberg
Germany.pdf

Hungary:
Hungary.pdf

Ireland:
Ireland.pdf

Italy:
Istituto Nazionale di Ricerca per gli Alimenti e la Nutrizione
Italy.pdf

Luxembourg:
Ministère de la Santé
Luxembourg.pdf

Netherlands:
Voedingscentrum
Netherlands.pdf

Romania:
Romania.pdf

Slovak Republic:
Slovak Republic.pdf

Spain:
Agencia Española de Seguridad Alimentaria y Nutrición
Spain.pdf

Sweden:
Livsmedelsverket
Sweden.pdf

United Kingdom:
British nutrition foundation
Food standards agency
Public Health
UK.pdf

United States:
2015-2020 Dietary Guidelines for Americans

 A water intake which balances losses and thereby assures adequate hydration of body tissues is essential for health and life 

by PEAK Sourcing