Beer doesn't make people fat, nor does food. Overconsumption, poor diet and lack of exercise are what contribute to obesity. Men tend to carry excess weight in their abdominal area, so men who drink a lot, eat poorly and don't exercise often have a "beer gut. "
Beer has 64 to 180 calories per serving. If you drink too much, you will gain weight. A beer belly is caused by too many calories and too little exercise.
You'll gain weight by taking in more calories than your body uses, whether they come from beer or alfalfa sprouts. Bodies store excess calories as fat -- around the belly, the thighs, the buns -- wherever your body has its fat cells. Extra beer is not stored in the beer belly.
Beer is usually consumed in mass, so sure it can make you fat. Just like any other calorie-laden consumable. Drink in moderation, don't eat a ton of fast food, and exercise a couple/few times per week and you'll be just fine. Beer does have some nutritional value!
Scientists have recently discovered that a 'beer belly' isn't associated with consumption of beer. However, some beers can be extremely calorific and alcohol does provoke hunger.
Beer is a very high-calorie beverage. It is also very high in carbohydrates. As such, if it is drunk to excess, it can result in weight gain, just as eating or drinking anything else that is unhealthy can. Moreover, people tend to eat while drinking, and the food that they eat is often also unhealthy.