Here is some sensiible advice from the BBC on the beer belly. What I like about it is it does not say quit but cutback and get exercise. I have battled weight since childhood, long before my first beer so I appreciate the non-judgemental tone.
One thing I have done this year is upped my activity with a return to soccer/football as well as swimming and exercise bike. I am still heavy and may never get the other form of a six-pack on the gut but when I get the blood test back and it says the good cholesterol is high and blood sugar reasonable, I do not worry so much.
Beer is just a food which the body is built to digest - allowing for medical discussions like this one the effect on metabolism as opposed those morality-laced science-thin forms of analysis of beer as a toxic poison. Not even a lesser Satan, beer is just a food to be consumed in moderation.