I also like baking soda, which is fine and edible. I've been eating baking soda off and on since childhood. However, lately, I have been having fantasies about pouring baby or body powder on something and both inhaling it and eating it. Yes, I know that the talc in baby or body powder can cause lung damage, and that is why I've not done it. However, I cannot deny the cravings. I know the condition is called pica. However, the only time I know of women developing pica is during pregnancy. I don't think I'm pregnant. My husband and I have been using protection. This has been going on for a couple of weeks now, which would correspond to my wedding; however, as I said, protection was even used on my wedding night. Does anyone know what nutrient I could be missing that would make me want to eat powder? Of course, having these dd's mean that I take all kinds of supplements plus try to eat right, so if I'm missing something, my body just must not be processing something right.