I was keeping my D level right at 100 ng/ml, which is what Scripp's Clinic still lists as the maximum "normal" level on their patient test results page. But my PCP recommended getting it down to 70 or so. That's what I do by taking about 8000 iu / day. 70 is about what they observe in life guards. Like I say, I'm a special case because of my MS, and I do get it measured regularly. That Indonesia paper counted everybody with >30 ng/ml as normal. I'm sure 50 would be great for most people.

I never understood why anyone would give AZ for a virus, especially with HCQ: That's one of the listed dangerous combinations since both elongate the QT interval.