Drinking four to six mugs of tea a day is as good for keeping yourself hydrated as a litre of water, a study has found.
The finding disproves the idea that regular tea drinking can dehydrate the body because of its caffeine content. The research also found no negative health effects from drinking that amount of tea.
In the high quality UK clinical trial 21 volunteers drank either four 240ml mugs of tea over a 12-hour period – equivalent to just under one litre of tea in total – or a similar amount of plain, boiled water served warm. The tea included 20ml of semi-skimmed milk but no sugar.