Yes, I do have a problem with my vit d levels, have not had them tested lately but usually it's about 39 - 50 but only at 50 when I take loads of it daily for weeks. My daughter had those 50.000 mg doses from her dr, wonder if she has any...maybe i could get a couple from her to give me a good boost. Thanks so much, so appreciate everyone's input, it really helps lots!!! =) I'm so frustrated going around a merry go round with this stuff.