That's one of those things concerns me... sure you can figure out how much calcium you eat... but how much do you absorb??? One can never really tell. This occured to me after reading that taking dietary supplements may not be as effective as people may think... that your body is used to processing and absorbing the nutrients from food and not pills and that calcium is particularly sensative to this. So taking the supplements with a meals helps this... supposedly... I had a moment of severe calcium paranoia :shock: but then I just decided to do my best and not freak out about it. alas. Cuz let's face it, if you fall you don't want to break a bone, and if you break a bone you want it to heal!