Just bought my self a flapjack for my mid morning snack and just discovered all the E numbers. After some quick googling, here's a brief summary of what they're used for. What's shocking is the number that are banned in atleast one country and the side affects. Now I know why cheap carpy food makes me feel rough 
MW

MW

The seasoning I use pretty much on every steak I cook has Silicon Dioxide in, which apparently is not very good for you. I think I'll be giving it a miss from now on.