According to a review that aimed to summarize data from a range of previous studies to evaluate the strength of evidence that alcohol causes cancer, even one glass of wine a day raises the risk of cancer.
The research was posted in Mail Online.
The main finding was that existing evidence supports the link between alcohol consumption and cancer at seven sites, including the throat, gullet, liver, colon, rectum and female breast.
The links were said to be strongest for heavy drinking, but this study suggested that even low or moderate drinking may contribute to a significant proportion of cancer cases because of how common this level of drinking is. The study also suggests there's no evidence of a "safe" level of drinking with respect to cancer.
However, it's important to be aware that this review doesn't state how the author identified and assessed the research they've drawn upon. We don't know whether all relevant research has been considered and the conclusions must be considered largely the opinion of this single author.
Nevertheless, the main finding of the link between alcohol and these seven cancers is already well recognized.
Recently updated government recommendations state there's no safe level of alcohol consumption, and men and women are advised not to regularly drink more than 14 units a week. This review further supports this advice.
Source: The NHS in England