[cypher]

I would definitely take a look at wider variety of grains, things like buckwheat, canary seed, barley are a few to considef, other seeds too, I would imagine phosphates are quite high at the moment also some animal protein.
I do have links to some really informative sites but it will probably take me a while to find them as it's been some years since I did my initial reseach. I can have a hunt though.