What were the CaD Trial participants asked to do?
A computer randomly assigned half of the participants to be in the active CaD supplement group and half to be in the inactive placebo group. All CaD participants were asked to take one study tablet twice a day with meals (total of two tablets each day). The women could choose whether they wanted to take their assigned study tablets in a chewable or swallow-able form, and they could switch between these two forms of study tablets during the trial. Participants answered questions every 6 months about their health and any problems they had taking the study tablets to make sure that the study tablets were safe and easy for them to take. Other than these tasks, CaD Trial participants were asked to continue their other WHI activities as before.
