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All Studies   Meta Analysis   Recent:  

Normal 24-hour Urine Calcium Concentrations after Long-term Daily Oral Intake of Vitamin D in Doses Ranging from 5000 to 50,000 International Units in 14 Adult Hospitalized Psychiatric Patients

Repas et al., The Journal of Steroid Biochemistry and Molecular Biology, doi:10.1016/j.jsbmb.2023.106329
May 2023  
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Retrospective psychiatric patients in the USA finding that prolonged daily oral intake of vitamin D3 from 5,000 to 10,000 IU/day was safe. There was no evidence for hypercalcemia, renal failure, calcium crystal formation, nephrolithiasis. or undetectable parathyroid hormone concentrations (previously reported), and urine calcium concentrations were normal.
Repas et al., 12 May 2023, peer-reviewed, 6 authors.
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