You've got one holiday party after another, so chances are, you're probably kicking back a few brewskies. I'm all for celebrating, but liquid calories can make you gain pounds fast. If beer is your go-to beverage, you may want to skip out on these brands, since they contain the most calories per 12-ounce bottle. Sierra Nevada Bigfoot: 330 calories Samuel Adams Boston Lager: 180 calories Guinness Read more