It took me a while but I eventually noticed that about an hour after taking vitamin D, I experience a severe hot flash and then continue to experience them about every hour or so. If I don't take them, the hot flashes only appear every few days and are mild. However, I have a vitamin D insufficiency and start having other issues when I stop taking it. I've tried changing brands, ingredients, breaking up the dose over the course of the day, decreasing the dose, adding magnesium etc. to see if that would help. I have done other searches and it seems to happen to other postmenopausal women but no one can answer why or offer a solution. Does anyone else notice this or have a reasonable guess as to why?
What is even more curious is that I've seen people recommend vitamin D to decrease hot flahses!!
Thanks