We have a son who has an eating disorder, so we have to take ALL of his food with us!!!!!(in our suitcases LOL).
The only obvious ones not to take are the of course meat,fish etc, we have never had any trouble ,we also found it helped to get a GP's letter stating that you need a specialist diet, just incase, but its never been a problem and we have flown all over the world.
If you are concerned contact the embassy they will confirm for you an exact list of what you can and cant take, it has been relaxed abit more now the foot and mouth scare is over.
Jules