One of the simplest ways to keep your weight in check is by not drinking too much. Studies show that alcohol intake can be a risk factor for obesity, especially when you regularly have a lot of it. Why? For most of us, alcohol is just a source of excess calories. Experts know that when we drink, we don’t usually compensate by eating less. Plus, even a few drinks can lower your inhibition—prompting you to eat more than you otherwise would if you were sober, research suggests.