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5,000 or 10,000 IU Vitamin D for 7 years both safe and effective (4700 patients, 8 months to plateau) – Jan 2019

Daily oral dosing of vitamin D3 using 5000 TO 50,000 international units a day in long-term hospitalized patients: Insights from a seven year experience.

J Steroid Biochem Mol Biol. 2019 Jan 3. doi: 10.1016/j.jsbmb.2018.12.010.
McCullough PJ1, Lehrer DS2, Amend J3.

  • 1 Dept of Psychiatry, Wright State U.School of Medicine, Dayton, OH, 45435,. Summit Behavioral Healthcare, Cincinnati, OH, 45237, pmccullough1 at cinci.rr.com.
  • 2 Dept of Psychiatry, Wright State U School of Medicine, Dayton, OH, 45435; Summit Behavioral Healthcare, Cincinnati, OH, 45237,
  • 3 Summit Behavioral Healthcare, Cincinnati, OH, 45237
VitaminDWiki

Most of the Vitamin D was 5,000 or 10,000 IU of D3
They also used 50,000 IU doses of D2


See also VitaminDWiki

 Download the PDF fromSci-Hub via VitaminDWiki
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Vitamin D3 is a secosteroid hormone produced in the skin in amounts estimated up to 25,000 international units (IUs) a day by the action of UVB radiation on 7-dehydrocholesterol. Vitamin D deficiency is common due to both lack of adequate sun exposure to the skin, and because vitamin D is present in very few food sources. Deficiency is strongly linked to increased risk for a multitude of diseases, several of which have historically been shown to improve dramatically with either adequate UVB exposure to the skin, or to oral or topical supplementation with vitamin D.
These diseases include asthma, psoriasis, rheumatoid arthritis, rickets and tuberculosis.
All patients in our hospital have been routinely screened on admission for vitamin D deficiency since July 2011, and offered supplementation to either correct or prevent deficiency.
During this time, we have admitted over 4700 patients, the vast majority of whom agreed to supplementation with either 5000 or 10,000 IUs/day.
Due to disease concerns, a few agreed to larger amounts, ranging from 20,000 to 50,000 IUs/day.

There have been no cases of vitamin D3 induced hypercalcemia or any adverse events attributable to vitamin D3 supplementation in any patient.
Three patients with psoriasis showed marked clinical improvement in their skin using 20,000 to 50,000 IUs/day.

Analysis of 777 recently tested patients (new and long-term) not on D3 revealed 28.7% with 25-hydroxyvitaminD3 (25OHD3) blood levels < 20 ng/ml, 64.1% < 30 ng/ml, a mean 25OHD3 level of 27.1 ng/ml, with a range from 4.9 to 74.8 ng/ml.
Analysis of 418 inpatients on D3 long enough to develop 25OHD3 blood levels > 74.4 ng/ml showed a mean 25OHD3 level of 118.9 ng/ml, with a range from 74.4 to 384.8 ng/ml.
The average serum calcium level in these 2 groups was 9.5 (no D3) vs 9.6 (D3), with ranges of 8.4 to 10.7 (no D3) vs 8.6 to 10.7 mg/dl (D3), after excluding patients with other causes of hypercalcemia.
The average intact parathyroid hormone levels were 24.2 pg/ml (D3) vs. 30.2 pg/ml (no D3).

In summary, long-term supplementation with vitamin D3 in doses ranging from 5000 to 50,000 IUs/day appears to be safe.

Attached files

ID Name Comment Uploaded Size Downloads
11167 10000 IU.jpg admin 07 Jan, 2019 13:03 50.21 Kb 281
11166 5000 IU.jpg admin 07 Jan, 2019 13:02 40.83 Kb 152
11165 5000 and10000 IU-compressed.pdf PDF 2019 admin 07 Jan, 2019 13:02 353.86 Kb 44
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