Arguably, MSG itself isn't unhealthy (in limited doses), but it enhances taste so much, that it's often used to cover up for poor quality or even expired produc

Arguably, MSG itself isn't unhealthy (in limited doses), but it enhances taste so much, that it's often used to cover up for poor quality or even expired products. For example, lower quality hot dogs without MSG and other additives are basically inedible, for the same reason junk food is tasty as well.