My prayers are with you and your son. As far as having two diets, that really shouldn't be that big of an issue. Even my wife and I don't eat the same. She is not as into balance and strict accountability as I am. So there are many times I am making something for her that I may or may not be able to eat. Or, I don't eat as much or mix it up with something else or skip the rice and just eat the meat and vegetables, etc.