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Sublingual vitamin D gave similar response as oral for most, and better for some – RCT Sept 2019

Rate of change of circulating 25-hydroxyvitamin D following sublingual and capsular vitamin D preparations.

Eur J Clin Nutr. 2019 Sep 23. doi: 10.1038/s41430-019-0503-0
Williams CE1, Williams EA2, Corfe BM3,4.


Poor responses to oral are often due to poor genes or poor gut

Overview Gut and vitamin D contains gut-friendly information

Gut-friendly, Sublingual, injection, topical, UV, sunshine

Getting Vitamin D into your body has the following chart

Getting Vitamin D into your body also has the following

If poorly functioning gut

Bio-D-Mulsion Forte – especially made for those with poorly functioning guts, or perhaps lacking gallbladder
Sublingual – goes directly into bloodstream
Oil: 1 drop typically contains 400 IU, 1,000 IU, or 4,000 IU, typically not taste good
Topical – goes directly into bloodstream. Put oil on your skin, Use Aloe vera cream with Vitamin D, or make your own
Vaginal – goes directly into bloodstream. Prescription only?
Bio-Tech might be usefulit is also water soluble
Vitamin D sprayed inside cheeks 2X more response (poor gut) – RCT Oct 2015
    and, those people with malabsorption problems had a larger response to spray
Inject Vitamin D quarterly into muscle, into vein, or perhaps into body cavity if quickly needed
Nanoparticles could be used to increase vitamin D getting to the gut – Oct 2015
Poor guts need different forms of vitamin D has the following
Guesses of Vitamin D response if poor gut

Bio FormSpeedDuration
10Injection ($$$)
or Calcidiol or Calcitriol
D - Slow
C -Fast
10 Sun/UVBSlowLong
(skin patch/cream, vagina)
Fast nano
9Nanoemulsion -mucosal
perhaps activates VDR
9?Inhaled (future)FastNormal
8Bio-D-Mulsion ForteNormalNormal
6Water soluble (Bio-Tech)NormalNormal
(some goes into gut)
3Coconut oil basedSlowNormal
2Food (salmon etc.)SlowNormal
2Olive oil based (majority)SlowNormal

10= best bioavailable, 0 = worst, guesses have a range of +-2
Speed: Fast ~2-6 hours, Slow ~10-30 hours
Duration: Long ~3-6 months, Normal = ~2 months

 Download the PDF from Sci-Hub via VitaminDWiki

Sublingual had slightly faster response than oral


Sublingual response rate 1.6 X higher than oral

Topical is blocked by a gene in ~10% of population - VitaminDWiki

Vitamin D is critical for skeletal health, and is increasingly associated with other pathologies encompassing gastrointestinal, immunological and psychological effects. A significant proportion of the population exhibits suboptimal levels of vitamin D, particularly in Northern latitudes in winter. Supplementation is advocated, but few data are available on achievable or typical rates of change. There has been considerable interest in the potential use of sublingual sprays for delivery of nutrient supplements, but data on efficacy remain sparse.

A randomised, placebo-controlled, three-arm parallel design study was conducted in healthy volunteers (n = 75) to compare the rate of change of vitamin D status in response to vitamin D3 (3000 IU/day) supplementation in capsule and sublingual spray preparations over a 6-week period between January and April 2017. Blood 25(OH)D concentrations were measured after day 0, 3, 7, 14, 21 and 42 days of supplementation with 3000 IU per diem.

Baseline measurements show 25(OH)D deficiency (<30 nmol/l), insufficiency (31-46 nmol/l) and sufficiency (> 50 mmol/l) in 14.9, 44.6 and 40.5% of the participants, respectively. There was a significant elevation in blood concentrations of 25(OH)D in both of the treatment arms (capsule p = 0.003, spray p = 0.001) compared with control. The capsule and spray were equally efficacious. The rate of change ranged from 0.69 to 3.93 (capsule) and 0.64 to 3.34 (spray) nmol/L day with average change in blood 25(OH)D levels of 2 nmol/l/day. Rates followed a simple normal distribution in the study population (ks = 0.94 and 0.82 for capsule and spray, respectively). The data suggest that rates of change are higher in individuals with lower levels of 25(OH)D.

A sublingual vitamin D spray is an effective mode of delivery for supplementation in a healthy population. The data provide reference values and ranges for the rate of change of 25(OH)D for nutrikinetic analyses.

Created by admin. Last Modification: Friday October 18, 2019 15:11:01 GMT-0000 by admin. (Version 7)

Attached files

ID Name Comment Uploaded Size Downloads
12805 Rate of Change.jpg admin 17 Oct, 2019 00:50 34.00 Kb 166
12804 More with spray experienced faster rate of change.jpg admin 16 Oct, 2019 22:41 20.70 Kb 189
12803 Spray capsules ng.jpg admin 16 Oct, 2019 22:41 30.96 Kb 180
12802 sublingual sci-hub.pdf PDF 2019 admin 16 Oct, 2019 22:41 527.13 Kb 146
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