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To maintain a healthy fluid balance, most adults need around 2000-2500mls of fluid per day (higher for men than women). This means 8-10 (250mls) cups each day. You might use this amount as a guide while learning to listen and respond to your body’s cues, keeping in mind that a range of factors influence our thirst.
In order to maintain homeostasis, the adult human body needs a fluid intake of 2-3 litres (25- 30ml / kg per day), allowing it to keep a balance of the nutrients, oxygen and water, which are necessary to preserve a stable healthy internal environment.
Daily fluid intake. Most people should aim to drink enough during the day so their pee is a clear pale yellow colour. The Eatwell Guide recommends that people should aim to drink 6 to 8 cups or glasses of fluid a day. Water, lower-fat milk and sugar-free drinks, including tea and coffee, all count. You may need to drink more fluids if you're:
Adequacy of fluid intake for replacing meaningful water losses (dehydration) can be assessed simply, inexpensively, and with reasonable fidelity among healthy, active, low-risk individuals.
Monitoring your fluid intake. If you have been asked to measure your fluid intake, the following chart can be used to help record this. Example. Personal Notes.
In the UK drinks provide 70-80% of our water needs; the remaining 20-30% comes from food e.g. soup, stews, some fruits such as melon and vegetables such as celery. The table shows the recommended amount of water that should be taken as drinks per day. Recommended adequate intakes of water from drinks.
Women typically need to drink about 1.6 litres of fluid every day and men need about 2 litres. This is in addition to the fluid we get from our food. You might need more if you have a temperature or have lost fluid through vomiting or diarrhoea, or if you are very active.
