The calcium to take is calcium citrate, not calcium carbonate according to Dr. Holick. (Calcium citrate will prevent kidney stones
- cal calbonate can cause them). Ask your doctor to read Dr. Michael Holick's NEJM article or go to www.vitamindhealth.org and watch the video presentation (external link on website), "ECTS Presentation". You should watch this also. It will take about 3-4 minutes to load and 35 min to watch.