Hi, Annie. Thanks. I know it's a cancer risk, and I need to balance that risk against the risk of not trying a potentially helpful treatment (those risks are very real to me, too!). But that makes sense about trying a different kind or higher dose of vitamin D. Maybe I could accomplish the same thing more safely.

I once read that here in the upper latitudes (I live around 43 degrees north), the sun doesn't get high enough in the sky in the winter to do much good. I don't know for sure if this is true, but it makes sense, because when the sun is lower in the sky, the UV light has to go through more atmosphere before it hits you (because it's coming in slanty). Maybe a lot of the UV is filtered out. I suppose it's why you're most likely to burn in the middle of the day in the summer than in the evening. So I don't have much confidence in the winter sun.

I'm going to look into a different vitamin D supplement, and talk to my neuro about light treatments.

Abby