You may need more fluid intake than average if:
- you exercise vigerously (losses in sweat and breathing)
- you live in a dry climate (evaporation)
- you eat a high protein / low carb diet (foods naturally low in water and need extra water for metabolism)
- the weather is hot (sweating)
- you drink alcohol (extra water needed for metabolism)
- Drinking water instead of sugared drinks reduces your kcals by about 200 per glass.
- The volume of the water may make you feel fuller and thus you may eat less.
- Many people mistake the way they feel when they are thirsty and think they are hungry...feeding the thirst cue adds unneccessary kcals.
- Drinking lots of water requires lots of walks to the loo. When it comes to exercise...every step counts.
Water Calculation Source: Whitney & Rolfe's "Understanding Nutrition"