Regular beer is just fine but it's just so damn to down 12 to 15 a night on a consistent basis (especially the thicker stuff like Guiness), or maybe I am just not tough enough any more.
Major misconception about Guinness. It's actually only about 125 calories per 12oz - roughly halfway in between a light beer (Bud Light, Bud Select, Miller Lite, etc.... all around 90-110 cals) and a full bodied lager or ale (usually 140-180 cals). It may *look* thick and heavy, but it's actually very light and goes down easy, while tasting full. That's why many consider Guinness the "perfect beer".