While even small amounts increase the risk, drinking above recommended limits causes the majority of cancer cases linked to alcohol. Even former drinkers are still at risk of cancer, including of the oesophagus, breast, mouth and bowel.
Guidelines state that men should drink no more than three to four units a day while women should not go over two to three units a day.
But research, published in the latest issue of the British Medical Journal (BMJ), found cancer risks at even lower levels.
Experts analysed data from eight European countries and worked out what proportion of men and women were drinking above the recommended guidelines.
Source: The Irish Examiner, 08/04/2011