Guiness is only 120 calories. It's better than most, and fills you up good. Guiness fills you up good because it looks like mud in a glass and makes you not wanna eat after Ha, so they say. I've been drinking Guiness for a couple of years, and let me tell ya, your body adjust to it. I can still do 5-6 Guiness, mix in with shots, and still go out for pizza afterward. And my jeans... Fuck, that explains it! I suppose the only way to remediate this effect is to make sure you go home with somebody special everytime you go out. Horizontal gymnastics burn calories like you wouldn't believe.