This is the exact information I'm looking for, thank you.
At the moment I am feeding a complete balanced Raw Diet.
But
I wanted to know from someone who fed Only Frames about the results.
My opinion is calcium overdose through natural sources is not possible, as someone rightly mentioned above, excess calcium is expelled in the stools.
My post is really because, in the initial days of the "Raw Feeding" movement there were a lot of pages on the internet which advocated feeding Raw Meaty Bones exclusively. They said that was enough.