I am still not clear what EC Additive means, and if they are all the same ones (when put in cat food)? Because I'm reading on the PAH's dry food packets that it contains EC Additives but it says in brackets that they are Vitamin E and Vitamin C)
The E- stands for EC (European Community) and these numbers have been tested for safety and been passed for use in the EC. Numbers without an E in front are allowed in the UK but may have not been passed for use in all EC countries.
To regulate these additives, and inform consumers, each additive is assigned a unique number. Initially these were the "E numbers" used in Europe for all approved additives. This numbering scheme has now been adopted and extended to internationally identify all additives, regardless of whether they are approved for use.
E numbers are all prefixed by "E", but countries outside Europe use only the number, whether the additive is approved in Europe or not. For example, acetic acid is written as E260 on products sold in Europe, but is simply known as additive 260 in some countries. Additive 103, alkanet, is not approved for use in Europe so does not have an E number, although it is approved for use in Australia and New Zealand.
http://www.foodreactions.org/allergy/additives/ It is compulsory to list antioxidants, colorants and preservatives using respectively the words "with antioxidant", "Colorant" or "colored with", "preservative" or "preserved with" followed by the specific name of the additive provided in the list of approved additives or, under certain conditions followed by "EC additives". It is also compulsory to label the presence of vitamins E, A and D and copper and their levels. Labeling of other trace elements and vitamins including their levels may be done, provided the levels can be determined by valid scientific methods of analysis. Labeling of other additives from the approved list such as aromatic and appetizing substances, emulsifiers, stabilizers, thickeners and gelling agents, acidity regulators is optional.
In case Copper, Selenium, vitamin A & D are added, the manufacturer/dealer has to be registered and the registration number has to be mentioned on the label.
All "technical proteins", such as yeasts need to be listed.
http://useu.usmission.gov/agri/petfood.html