Without a side by side study we cannot know. All the studies done so far, except one, have been no good because they are not studying cal-mag supplements alone, and the one study that was valid actully showed higher cal-mag intake in moms that went on to conceive boys. I think it is something everyone needs to decide for themselves. I got 4 boys with tons of dairy and 2 of them I was taking cal-mag supps so I droped it and got my girl without dairy or cal-mag supps, but you need to do waht you feel comfy with.

