If consumed in large amount you runs into things, you drives into things and can cause severe conditions, if you're trying to lose fat it can cause to burn less fat by burning substance called acetate instead of burning fats, Beer can contribute to weight gain by interfering with blood sugar levels. Your body stores sugar in your liver as glycogen; when blood sugar drops between meals, your liver converts glycogen into glucose, releasing it into the blood. Alcohol interferes with this process. Blood sugar drops, the liver does not convert glycogen, your brain thinks you are hungry and you scarf down a fatty burger, fries and whatever else catches your eye when you don’t really need the food.