What it is, is watered down massed produced commercialized p:i:s:s. Bud Light is one of the worst watered down beers ever. Plus, it contains carcinogen, corn syrup and other artificial ingredients, stabilizers and preservatives. You call that natural brewed beer? The United States is so concerned about mass commercialization, mass production and mass consumption.
That's why I like drinking German and Belgium beers because they have purity laws that make their beers all natural. Screw these mass produced American beers. If you're so concerned about your calorie count then don't drink at all.