How many cigarettes in a bottle of wine?

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Drinking one 750 ml bottle of wine a week increases the risk of developing cancer over a lifetime by the equivalent of 10 cigarettes a week for women and five for men, a study says.

The UK researchers said this was a good way of communicating the health risks of moderate drinking.

But experts said that smoking carried much greater cancer risks than alcohol, for most drinkers.

And the only way to cut the risks from smoking was to quit completely.

Government guidelines on alcohol consumption advise men and women to drink no more than 14 units of alcohol a week – the equivalent of six pints of average strength beer or seven glasses of wine( or a bottle and a half of wine ).

The guidance also says there is no “safe” level of drinking when it comes to health risk.

This study says even moderate drinking can set people at risk of cancer, particularly breast cancer, which is the most common cancer in women in the UK.

What are the cancer harms of alcohol?

Writing in BMC Public Health, the researchers calculated that if 1,000 non-smoking men and 1,000 non-smoking women each drank one bottle of wine a week, around 10 extra men and 14 extra women could develop cancer during their lives.

In women, alcohol uptake was linked to an increased risk of breast and in men, it was linked to cancers of the gastrointestinal tract and liver.

For their calculations, the research team from the University of Southampton and Bangor University, used data on cancer risk from Cancer Research UK and data on the number of cancers in the population that could be linked to tobacco and alcohol.

Dr Minouk Schoemaker, scientist at The Institute of Cancer Research, London, who conducts research into the causes of breast cancer, said the study offered an “interesting insight” but the picture was not simple.

“The overall picture of cancer risk is enormously complex and nuanced, so it’s important to keep in mind that this new study is subject to a number of assumptions, ” she said.

“For example, it is difficult to disentangle the effects of alcohol and cigarette smoking entirely, and the study did not take into account the duration of smoking or day since stopping.”

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