Alcohol and weight loss may seem like enemies, but for reasons different than you may think!
Most people assume that alcohol is bad because of the "carbs" or sugars in it, but lets look at what it really is. Carbohydrates, proteins, and fats are all macronutrients that contain calories (or energy). Carbohydrates and protein contain 4 calories per gram, while fat contains 9 calories per gram. Alcohol actually contains 7 calories per gram and has no nutritional value.
The fact that alcohol has almost twice the amount of calories of other nutrients is alarming, but the effect it has on the body is what really slows the process of fat-burning. See, when alcohol is consumed, it is absorbed and used immediately. This means the body does not use carbohydrates or fat for energy. This effect can last for hours after drinking has stopped.
Another problem with drinking alcohol while on a weight-loss program is that it tends to lower inhibitions and cause cravings for other "not-so-healthy" food. Even if you only drink on weekends, it can be enough to stall your weight loss progress for the week.
So, can you still lose weight and drink? Answer: it is possible. However, if you are doing everything you can (eating right and exercise) and still not losing, then maybe your daily glass of wine is to blame. Your best bet is to save it for special occasions and limit your drinks until you reach your goal.