welcome! 700 calories seems quite low. first we need to calculate your BMR, after you watch thse vids.. here you go have fun!
ALL LINKS, ID WATCH THEM IN ORDER MAKE SURE TO WATCH ALL THE VIDS IN THE 1ST!
those 2 links are the basis of what you need right now, come back with goals, proposed diet with macros (pro, carbs,fat) of all foods, meals, day along with calories. then post up your BMR and your CURRENT diet and that is what we need for a proper critiqe. GL
http://forums.steroid.com/showthread.php?t=323516 ** WATCH ALL DVD VIDEOS FIRST!
http://forums.steroid.com/showthread.php?t=384395 BMR CALCULATIONS
let me know if you need exercise related info i have good stuff on that as well