A large new global study published in the Lancet has confirmed previous research which has shown that there is no safe level of alcohol consumption.

Link to the study: https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(18)31310-2/fulltext

Article about the study: https://www.bbc.co.uk/news/health-45283401

Here’s another study:

Moderate alcohol consumption (1-2 glasses day) has been linked to an approximate 30-50% increased risk in breast cancer: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3832299/