So, I started adding 25mg of zinc picolinate to my supplement regimen, and after about a week I woke up with a distinctive "zincy" taste in my mouth yesterday. I've done zinc challenges before with aqueous zinc, and when it starts to taste unbearably bitter, that supposedly means you have enough in your system. I'm wondering if I'm there and should lay off the supplement for a while.
On a side note, it did make a difference in menstrual cramping (Yay! Thank you Travis for the idea). I haven't had a lot of cramping lately, but I only felt 1 twinge, instead of the slight backache and discomfort I generally get.
According to my mother (who isn't infallible, but was a medical journal proofreader for 19 1/2 years and recently became a nurse), you'll always know that you've had enough zinc when you start to have a metallic taste in your mouth. I've often described it as "tasting as though you've just bitten a fork".
Thanks for the reminder, btw. Travis' post about zinc was right before I went on vacation and I'd meant to look into it more when I came back.
Once upon a time, I was eating pumpkin seeds daily for zinc, and I would just sit and eat them and they were SO GOOD. I couldn't get enough. One day I woke up and ate some and they tasted bitter. I think it was my body's way of telling me it had had enough.