sqad.. I am not a doctor. But if the Doc has said she has low calcium levels, then surely to take a supplement may help? Like if you have low iron levels. Calcium (am I correct in this?), cannot be stored by the body so you have to take it regularly in the form of food or supplements. I have to take calcium on prescription as I have U colitis which can affect your bones and bone density. Similarly, if your immune system is deficient, Echinacea may give it a boost. I would always try these herbal remedies before wading in with the heavy duty drugs from the doctor, but if there is an underlying disease then it is the doctor's job to diagnose that. I was just trying to be helpful, as is the job of us AB-ers, on here.