A large glass of wine a day increases the risk of liver and bowel cancer by a fifth, experts have warned.
What's more, the same goes for a pint of beer or a couple of spirits such as vodka or gin.
Dr Rachel Thompson, science programme manager for World Cancer Research Fund (WCRF), warned that just two units of alcohol a day increases the risk of bowel cancer by 18 percent and the risk of liver cancer by 20 percent.
The warning appears to conflict with other studies which suggest moderate alcohol intake can help combat heart disease, reports the Telegraph.
"If you are drinking a pint of lager or a large glass of wine every day then this might not seem like a lot, but the science shows you are increasing your risk of bowel cancer by 18 per cent and your risk of liver cancer by 20 per cent," she said.
She added: "When you consider how many cases of these types of cancer are diagnosed in the UK every year, it is clear that drinking even relatively small amounts of alcohol can make a significant difference.
"Yet despite strong evidence, most people still do not know that alcohol increases risk of cancer."