It is certainly overwhelming, but it's something one can get the hang of. It's a lot to take in, and sometimes it helps to take notes, keep everything managable that way. Low carbing made a huge difference for me. As for the vit D deficiency, well... Salmon and other fatty fishes won't mess with your bloodsugar, and are chock full of D. So knock yourself out! (The doc'll probably put you on a colecalciferol supplement, but you can get a head start with the fishies. If you like fish, that is... ). Good luck!