The evidence clearly shows that there is no need to drink more water than your body tells you that you need. Thirst is an extremely well balanced and effective signalling system that we should listen to. Eating fresh fruit and vegetables that are rich in water is a good way to hydrate as part of your meals, and drinking tap water or, if you fancy splashing out, glass-bottled spring water will be absolutely enough. The only exceptions are those who may have a reduced thirst response such as the elderly. If you are fit and healthy, trust your thirst.
