Another way to look at this:
A standard drink is about 150 calories. A Big Mac is about 563 calories. (see USDA)
If you drink 3 bottles of wine (5 servings per bottle) per week = 2,250 calories
If you drink two six packs per week = 1,800 calories
Grand total: 4,050 calories or 7 Big Macs
So on average, after eating your usual amount of food and snacks per day, you are also eating an extra Big Mac every day. If you drink mostly in the evenings after supper, it is like having a Big Mac every night before going to sleep.