[sgtnoodle]

I have an inflammatory condition, and one of the things my rheumatologist checks is my inactive vs. active vitamin d levels (apparently there are two chemical forms that your body converts between). My poor understanding is that folk with inflammatory issues often have disproportionately high levels of the active form, and too much of it causes damage to the body. Most blood labs only measure the inactive form, though, and so taking vitamin D supplements based on levels from the wrong blood test could be risky.