Drinking too much soda can be unhealthy; thatâs something people have known for decades. But I donât think most people understand just how bad one of those sugar-packed drinks can be. So letâs walk through what happens to your body before, during and after you down a typical bottle of pop. Before you take a drink, consider what itâs replacing. Many studies found that you donât eat or drink as much healthy food if you drink lots of soda. Soda drinkers are more likely to be deficient in vitamins, minerals and dietary fiber. One bad choice often leads to more.