An average-size individual uses approximately 2 litres (8 cups) of water per day. Knowing that water is essential for all our vital processes, it goes without saying that our daily intake must compensate our loss.
However, hydration is not only about drinking water. All the liquids we ingest—such as juice, milk and soups—contribute to our daily intake of water. Also, some foods, such as fruits and vegetables, are a significant source of water and can represent up to 20 per cent of our daily intake.
Water needs vary from one person to another, depending on each person's size and weight, physical activity and exposure to climate. Breasfeeding and some chronic diseases can also impact water needs.
Ensure good hydration by keeping a bottle of water with you throughout the day. Most importantly, don't wait until you are thirsty for a drink of water: thirst is the first symptom of dehydration!