There is absolutely nothing wrong with flavour enhancers. As for the other things, you are varying degrees of correct (for example, it is easy to eat too much s

There is absolutely nothing wrong with flavour enhancers. As for the other things, you are varying degrees of correct (for example, it is easy to eat too much salt but not if what you eat in a day is made by you otherwise). The sugar is obviously not ideal if you're going for low carb, but thankfully you can check this by reading the ingredients list and nutritional info. There are no mysterious things going on here.