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Vitamin D restoration then monthly was the most popular dosing by trials – Nov 2018

Therapeutic and maintenance regimens of vitamin D3 supplementation in healthy adults: A systematic review.

Cell Mol Biol (Noisy-le-grand). 2018 Nov 30;64(14):8-14, PMID: 30511630
Hassan AB1, Hozayen RF2, Alotaibi RA2, Tayem YI3.
1 Dept of Internal Medicine, College of Medicine and Medical Sciences, Arabian Gulf University, Bahrain.
2 Internal Medicine Department, Salmanyia Medical Complex, Bahrain.
3 Dept of Pharmacology and Therapeutics, College Of Medicine and Medical Sciences, Arabian Gulf University, Bahrain.
A wide variety of regimens were reviewed


Vitamin D loading dose (stoss therapy) proven to improve health
Overview Loading of vitamin D contains the following

Loading dose: 200 studies at VitaminDWiki

Vitamin D loading dose (stoss therapy) proven to improve health overview
If a person is or is suspected to be, very vitamin D deficient a loading dose should be given

  • Loading = restore = quick replacement by 1 or more doses
  • Loading doses range in total size from 100,000 IU to 1,000,000 IU of Vitamin D3
    • = 2.5 to 25 milligrams
  • The size of the loading dose is a function of body weight - see below
    • Unfortunately, some doctors persist in using Vitamin D2 instead of D3
  • Loading may be done as quickly as a single day (Stoss), to as slowly as 3 months.
    • It appears that spreading the loading dose over 4+ days is slightly better if speed is not essential
  • Loading is typically oral, but can be Injection (I.M,) and Topical
  • Loading dose is ~3X faster if done topically or swished inside of the mouth
    • Skips the slow process of stomach and intestine, and might even skip liver and Kidney as well
  • The loading dose persists in the body for 1 - 3 months
    • The loading dose should be followed up with on-going maintenance dosing
    • Unfortunately, many doctors fail to follow-up with the maintenance dosing.
  • About 1 in 300 people have some form of a mild allergic reaction to vitamin D supplements, including loading doses
    • it appears prudent to test with a small amount of vitamin D before giving a loading dose
    • The causes of a mild allergic reaction appear to be: (in order of occurrence)
    • 1) lack of magnesium - which can be easily added
    • 2) allergy to capsule contents - oil, additives (powder does not appear to cause any reaction)
    • 3) allergy to the tiny amount of D3 itself (allergy to wool) ( alternate: D3 made from plants )
    • 4) allergy of the gut to Vitamin D - alternative = topical

 Download the PDF from Research Gate via VitaminDWiki

Studies carried out assessing the effect of different doses of cholecalciferol (vitamin D3) on correcting serum 25-hydroxyvitamin D deficiency in healthy adults are limited and review studies are lacking. Moreover, the maintenance dose and its duration offered by these few studies are inconsistent. We performed a systematic review of randomized clinical controlled trials (RCTs) that assessed the effect of different doses of vitamin D3 on serum 25(OH)D in healthy adults. PubMed database was searched from 2010 to 2018 using the following search terms:

  • "vitamin D deficiency",
  • "Cholecalciferol",
  • "vitamin D3 dose",
  • "vitamin D supplement",
  • "vitamin D therapy".

RCTs and original articles that evaluated different doses of vitamin D3 were identified. A total of sixteen (out of 3016) acceptable studies fulfilling our inclusion criteria were included in the current systematic review. Our results revealed that supplementation with vitamin D3 had a significant positive effect in raising serum 25(OH) D concentrations.
Our findings indicated that the best regimen of vitamin D3 supplement consisted of an initial large bolus dose either IM injection of 600.000 IU monthly or oral dose of 200.000 IU monthly or 50.000 IU weekly for 8 weeks, followed by a maintenance dose of 50.000 IU monthly or bimonthly.
A large bolus therapeutic dose of vitamin D3, frequently or infrequently for 8 weeks, followed by long-term oral maintenance dose of 50.000 IU monthly or bimonthly optimize and maintain vitamin D serum levels year round.

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Attached files

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13884 Theraputic wide variety.jpg admin 06 Jun, 2020 84.51 Kb 7506
13883 Therapeutic and maintenance regimens - Research Gate.pdf admin 06 Jun, 2020 583.86 Kb 588