[GiorgioG]

I took > 100,000IU for nearly 3 months (look up the Coimbra Protocol) with no ill effects. Avoid calcium like your life depends on it (even for months after stopping) and you'll likely be fine (I am not a doctor, this is not advice, just sharing my experience.)

[hellofunk]

I assume you’re saying to avoid calcium supplements, not to avoid calcium?

[GiorgioG]

No avoid all calcium if you’re taking high doses of D on a daily basis.