[aigel]

My question would be how did my ancestors in northern latitudes get to be 80+ years old if this was such a big deal? I guarantee they had vit D deficiencies just as I do, even in summer, being outdoors (albeit mostly covered) a lot.

That said, I recently started with 5k IU and will keep it up until the next blood test to see if it lifts me in the normal range. It is supposed to help with the immune system, which we definitely want to have optimized currently.

G