In the US the lab ranges show 30 at "normal".... 85% of 30 is 25.

I think it would be helpful for you to get the number result, from your doctor's office, so you can know for sure where you are.

When Vit D is low-- calcium/magnesium balance gets out of whack.

The new research shows that normal range should be 50-80ng/ml.

Most of the lab ranges reported for B12 and Vit D have not been adjusted to reflect the new data.

Also, the rise in skin cancer that is so disturbing today, is slowly being examined and is thought to be a lack of Vit D at the root of it all. Vit D seems to be a scavenger for cancer cells. Having good levels, seems to prevent other cancers too, in the studies coming out.