I had my Vitamin D tested in august from my primary care dr. This was the first time mine was tested( to my knowledge.) I didn't know that Vit D was an issue with cf - mine was 49. I don't take any supplements. I do spend a lot of time outdoors, running, biking, gardening (and swimming in the summer.) I eat a lot of cheese <img src="i/expressions/face-icon-small-wink.gif" border="0">. lucie32 yrs old/female/ dx'd at 2 <br>