Dosing error gave 12000 IU daily vitamin D to infant, but no indication of any problem
Dosing Error With Over-the-Counter Vitamin D Supplement: A Risk for Vitamin D Toxicity in Infants.
Clin Pediatr (Phila). 2012 Apr 5.
Rajakumar K, Reis EC, Holick MF.
Instead of 400 IU an infant was given 12,000 IU of vitamin D daily for 20 days
Due to parents giving 1 mil liter as they were used to instead of 1 drop, from the new product
Authors were extremely concerned about infant toxicity
However, no problems at all:
Small excerpt from the paper
^The infant was clinically stable with no symptoms and was feeding and acting well.
The infant had no history of irritability, constipation, or abnormal movements. Examination revealed a calm, alert, well-appearing infant (weight 5.6 kg; 3rd-15th World Health Organization percentile) with no focal findings except slightly increased patellar deep tendon reflexes; no clonus was present. Serum calcium (10.5 mg/dL, reference range 8.8-10.8 mg/dL), phosphorus (6.4 mg/dL, reference range 4.5-6.5 mg/dL), electrolyte panel, creatinine, and blood urea nitrogen were normal.^
20 days at 12,000 IU per day = 240,000 IU
Blood level was 400 ng/ml, which dropped down naturally to 50ng in 4 months
There continues to be is so much fear from vitamin D toxicity – even with decades of experience around the world with very young humans and other mammals with very high levels of vitamin D
📄 Download the PDF from VitaminDWiki
See also VitaminDWiki
High-dose Vitamin D safe for children (10,000 IU daily, 600,000 IU bolus) – meta-analysis April 2022
Infants in Finland who got 2000 IU vitamin D daily grew to normal height – March 2011
Rare infant vitamin D toxicity – due to errors which resulted in more that 240,000 IU – Jan 2014
600,000 IU of vitamin D2 given to infants every 4 months for decades in East Germany
Lambs get 10X more vitamin D3 in their milk formula than humans = 2,000 IU per pint of milk
Overview Toxicity of vitamin D which has the following graph for adults
Many weeks for a really large DAILY dose of vitamin D to become toxic for adults

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