Junk foods are an in-your-face part of culture. Ads for junk food are in stores, on billboards and on television. Even movie theaters feature ads for junk food before the main feature begins. With unhealthy foods so easily accessible, it can be tempting to eat whatever is readily available. Eating large amounts of junk food can cause you to gain an unhealthy amount of weight and increase your risk of chronic health problems. On the other hand, quitting junk food can improve your health.