[password11]

> the vast majority of whom agreed to supplementation with either 5000 or 10,000 IUs/day. A few agreed to larger amounts, ranging from 20,000 to 50,000 IUs/day.

This study is mostly about << 20,000 IU/day.

Also, abstract doesn't say precisely how "long-term" they were supplemented for -- was it weeks or years?

Medium term (~1w) loading doses are probably fine given that U.S. president was treated with this for COVID. But we're talking about 20,000 IU/day, every day, for months and years, which is why the study's vagueness about "long-term" matters here.