Here in college, I am near large amounts of alcohol in every direction. Each night I hear those stumble in who've had a little too much, or get the pleasure of seeing someone's roommate completely plastered, laying in bed, face covered in marker and flour. Usually I just sigh and go on about my way, as there isn't much I could say that would stop such occurrences, It's just a way of life around here, books and booze.
These figures may not seem like much, but you have to remember that alcohol goes on top of everything else. You have wine with dinner, and usually a fancy dinner at that. Fancy dinners contain foods covered in fancy sauces, which are usually very delicious due to the high saturated fat content (our bodies love the taste of fat. Just think about peanut butter, isn't it great how smooth and delicious it tastes? That's the fat!) Another 300 calories on top of an already unhealthy meal will only throw you from the frying pan into the fire. Watch those calories!
And here's one more little fact that you should take into account when drinking alcohol. IT STIMULATES YOUR APPETITE! That's right, when you drink alcohol, you're very likely to eat much more than you would have initially. That's another reason most restaurants love to sell you alcohol with dinner. Have you ever heard of the munchies? You associate with pot right? Well it can just as easily be applied to alcohol. Believe me I see plenty of the "drunk munchies" around here every single weekend.
Bottom Line: So there you have it. Not only can alcohol be dangerous, but even in small amounts it is VERY calorie significant. I'm not saying you can't enjoy alcohol (responsibly), but just make sure you know what you're consuming. It's not water, and can really throw a diet into the garbage if not taken into account.
Know your limits, count your calories, and as always, good luck! (and stay safe, my fellow college students.)