I love experiments like that smile emoticon They're on me,
   they're safe enough, and I *know* if they work because.. it's
   me. [even if it's placebo, I don't care. Placebo is powerful
   stuff too]. But I throw as much Science as I can at the question
   so that I feel confident if nothing else smile emoticon It led
   me to a new habit as well: occasional zinc and magnesium
   together. I got reasons I could ramble about but it's related to
   anxiety, immune system, creative-thinking combined with memory
   retention (one of my obsessions) and stuff like that. Oh, heart
   health too. We get calcium (and now VitD) shoved into us by
   media promotions but where's the relaxer? Calcium tenses,
   magnesium relaxes (well, "opens" or "releases"). You get your
   mag from the chloryphill in green veggies but I don't always eat
   as much greens as I want (even though I love salad). So if I
   feel my veg intake is low, I take some magnesium.