How to make your own flour.
Food Additives a list of what may be some of the worst, recently highlighted has been sodium nitrate (E251) which can cause a heightened cancer risk and in children may cause dizziness, headaches, difficult breathing. It is found in many soft drinks and preserved meats. A full list of additives and their effects can be foumd at http://nac.allergyforum.com/additives/index.html
A long list of common food colourings used in the UK with where they come from, what they do, side effects if any, recomendations for use and if they are banned in other countries (and a suprising number of them are). Click Here
Names used on packaging for Cows Milk
Milk Alergy - there is an excelent discription of it on the Calary Allergy Network website.