But a cup of holiday punch tallies in at 234 calories, while a serving of 5-ounce champagne is 120 calories. A 12-ounce beer is about 150 calories, although a light beer has a more manageable 100 calories. A 5-ounce glass of red or white wine also runs about 120 calories.{relatedarticles} Of course, mixed drinks bring an added danger to your diet when mixed with high-calorie, high-sugar juices and sodas. Sip on these helpful hints for making sure these holiday beverages don't lead to a bulging belly that shakes like a bowl full of jelly. Opt for skim milk in your hot chocolate and fat-free whipped cream. When enjoying a mixed drink, request diet mixers. Alternate between alcoholic beverages and water. Drink in moderation. When working out your calorie count for the day, be sure to incorporate the drinks into your figures.