Usually our body gets enough of most vitamins through foods,fruits and sunshine. So in a healthy state there is no need to take vitamins as meds. But sometimes like during menstruation period,pregnancy,infancy,etc there is a need for complementary vitamin. Fat-soluble vitamins like vit A and vit E remain longer in the body than water-soluble vit B or vit C. As group B vitamins are water-soluble, they usually will not be stored in the body for a long time. Anyway, for women Calcium-D tablets and multivitamin tablets seem to be adequate should there would be no ill-health.