Hi Erin:  Great question.  I'm glad you've been treated for the eating disorder; now that you are getting more nutrients and vitamins through food, that should help your bones a lot. Good for you in tackling this problem you must be very strong.

Keep up the exercise with calcium and vitamin D3.  When you calculate your vitamin intake try to add your dietary totals first, then add supplements to that if you need to.  If you were getting say 500 mg of calcium a day via food then you would add to that in supplements (calcium) till you reach the daily recommendation which I think is at 1,200 mgs now, but check that out to be sure, and do the same calculations on D3 by adding your dietary totals first and then adding supplements to add up to 1,000 IU's a day.

I've never taken Reclast, so I have no personal experience with it.  What does your Dr say about this treatment?  I would ask since you are very young and probably premeno unless your menstrual cycles stopped due to the eating disorder.  If you have stopped menstruating, it will probably return once your body is back on a regular input of food.

Here's an article on Reclast that may explain *who* can take it.  Usually it's prescribed to post-menopausal women, but I have heard of exceptions to this rule.  If you haven't had children and plan on having a family, I would ask your Dr if there is any long term effects from Reclast that would affect a baby.

Here's another article from Dr. Gonter on Reclast.

I hope your t-scores get better, and you find out what type of treatment would be good for someone so young.  Take Care and I wish you all the luck...