additives are often listed without specificity, as “spices” or “flavorings,” making it impossible for consumers to determine what, exactly, they are eating.
There are numerous additives that must be listed explicitly on packaging because they can cause health problems. These include sulfites, for example, which are used to prevent discoloration. The FDA estimates that sulfites cause allergic reactions in one percent of the general population, and five percent of people who suffer from asthma.
Read the whole article: http://sedonapies.com/2013/06/why-we-dont-use-additives/