The author of Beer, Health and Nutrition stressed that people should not see a month of self-denial as a ticket to over-indulgence throughout the rest of the year.
"The key is a little and often. You are seriously mistaken if you think that having a month without drinking will protect you from the effects of excessive drinking for the rest of the year.
"The best advice is to drink moderately throughout the year," he said.
However, it is not just how much you drink, but also what you drink. Professor Bamforth said that beer, and real ale in particular, offers many nutritional benefits.
"The great thing about beer is that it is low in alcohol and brewed from natural raw materials so it's a good source of important nutrients such as antioxidants, B vitamins and dietary silicon that promotes strong bones. Indeed beer used to be known as liquid bread".
The Campaign for Real Ale (Camra) welcomed the evidence. Camra chairman Colin Valentine said: "The health benefits of moderate drinking may explain why you meet so many people enjoying a healthy retirement who still like going for a pint of real ale in their local.
"The evidence also shows that sociability has significant benefits to health and well-being. You are far better off sharing a beer with friends in a pub than sitting at home drinking by yourself."
- The Independent