Accidental overdose of 2 million IU of vitamin D3 caused zero symptoms

Two nursing home residents accidentally got 2 MILLION IU of D3 in one go. That's 3-9 years of vitamin D3 in a single dose. Staff just... watched to see if they'd blow up. Result? Mild calcium bump for \~2 weeks, ZERO serious symptoms or hospital trips.

Source: https://x.com/HarmlessYardDog/status/2030732550910447881?s=20 Study link: https://pubmed.ncbi.nlm.nih.gov/25269374/