Drinking just one glass of water a day in place of beer or fizzy drinks slashes the risk of obesity by up to a fifth, researchers have found.
Those who replace unhealthy drinks with water once a day for four years also lose weight, according to a study of nearly 16,000 people.
The findings, presented at the European Congress on Obesity in Portugal, showed giving up one 330ml bottle of beer a day and drinking water instead cut the risk of obesity by 20 per cent.
