'E' numbers just refer to a list of chemicals, whether natural or man-made. People who say 'E' numbers are bad do not understand what they are talking about. For instance, an apple (even an organic one!) contains various chemicals and many of those are catalogued and thus have an 'E' number. Some chemicals are good for you, some bad. Similarly, some 'E' numbers are good, some bad. Some of them, in fact, you must have or you will die!