D.B.
I think it is awesome that you have gotten a grip on your eating disorder and that you are making positive steps! Congratulations! Your enthusiasm and positive outlook are just great!
But you are right to be concerned about this regimen. Did you know that pills (vitamins, anything else) are absorbed just 20%, 30% at best? That's from the Physician's Desk Reference - I can send you the link if you are interested. The photos show xrays of undigested pills working their way through the system. Also, for about 3 years there have been articles in every major newspaper about drugs in the water supply - those are from undigested pills passing out of the body and into the septic tank or sewage system and eventually into the water supply. Any septic pumping company or sewage treatment company will tell you what they find.
You are wasting your money. Put one of those pills in a dish of white vinegar and see what's left after 20 minutes - that's what's not digested by your stomach. If it's still solid, it's not absorbed. So, 75% of what you spend is literally going down the toilet.
Now, if you absorbed 25%, exactly what does that mean? Maybe you absorbed 100% of the wax coating that lets the pill pop out of the mold, or maybe the fillers that hold it together. Maybe you didn't even get 25% of the actual nutrient.
Also, that many pills are VERY hard on anyone's stomach. They tend to sit at the base of the stomach and clump together. And someone who has had an eating disorder already has some problems in that area from what's been going on in your past.
Even if you did, there is NO authority that can tell you that individual vitamins or minerals work in isolation. That's not how nature intended our nutrition - everything works together and every element needs all of its "partners" to function effectively. So you need a completely comprehensive supplement with 70+ ingredients in the proper balance, and one that is highly bioavailable (absorbed within 20 minutes at the cellular level).
I am sure your chiropractor means well but I would question her training or logic - this makes no sense to me.
The AMA recommended 10 years ago that people (everyone!) take a comprehensive supplement, and that liquid is the best. Studies show that pre-mixed liquids degrade over time, so the most effective is powder that is mixed in liquid (usually water) at the time of consumption.
If you want info on these recommendations or on the Council for Responsible Nutrition, let me know. I'd be happy to help you more.
There IS a great deal that you can do but I really feel you are on a difficult path. Happy to help with more info.