Vitamin D administration leads to a shift of the intestinal bacterial composition in Crohn's disease patients, but not in healthy controls
Journal of Digestive Diseases Volume 19, Issue 4, published: 23 March 2018
https://doi.org/10.1111/1751-2980.12591
Holger Schäffler  Daniel PR Herlemann  Paul Klinitzke  Peggy Berlin Bernd Kreikemeyer  Robert Jaster  Georg Lamprecht
- From PDF Cholecalciferol 20.000 IU daily from day 1 until day 3, then every second day for 4 weeks. In this study, we aimed for a target vitamin D level between 100 and 150 nmol/l. Serum 25-OH vitamin D levels were measured weekly (before administration = week 0). In both groups, 380.000 IU 25-OH vitamin D were administered per patient over the course of the study
- Crohn's Disease relapse rate of 3 in 8 with 1,000 IU vs 0 in 12 with 10,000 IU of Vitamin D – RCT Feb 2017
Overview Gut and vitamin D has the following summary
- Gut problems result in reduced absorption of Vitamin D, Magnesium, etc.
- Celiac disease has a strong genetic component.
- Most, but not all, people with celiac disease have a gene variant.
- An adequate level vitamin D seems to decrease the probability of getting celiac disease.
- Celiac disease causes poor absorption of nutrients such as vitamin D.
- Bringing the blood level of vitamin D back to normal in patients with celiac disease decreases symptoms.
- The prevalence of celiac disease, not just its diagnosis, has increased 4X in the past 30 years, similar to the increase in Vitamin D deficiency.
 
- Review in Nov 2013 found that Vitamin D helped
 Many intervention clinical trials with vitamin D for Gut problems (101 trials listed as of Sept 2019)
- All items in category gut and vitamin D 217 items 
 Gut category listing contains the following 217 items in GUT category - see also Overview Gut and vitamin D, - Ulcerative Colitis and Vitamin D - many studies 12+
- "celiac disease" OR CD 1830 items July 2019
- IBS or IBD or IRRITABLE BOWEL in title of 40 VitaminDWiki pages as of Jan 2025
- Gut-Friendly forms of vitamin D
- such as: bio-emulsion, topical, spray, sublingual, inhaled, injection .
 
 47 items along with related searches. Overview Gut and vitamin D contains gut-friendly information Gut-friendly, Sublingual, injection, topical, UV, sunshineGetting Vitamin D into your blood and cells has the following chart 
 Getting Vitamin D into your blood and cells 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 the bloodstream
 Fat-soluble Vitamins go thru the slow lymph system
 you can make your own sublingual by dissolving Vitamin D in water or use nano form
 Oil: 1 drop typically contains 400 IU, 1,000 IU, or 4,000 IU, typically not taste good
 Topical – goes directly into the bloodstream. Put oil on your skin, Use Aloe vera cream with Vitamin D, or make your own
 Vaginal – goes directly into the bloodstream. Prescription-only?
 Bio-Tech might be useful – it is also water-soluble
 Vitamin D sprayed inside cheeks (buccal spray) - several studies
 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 gutBio Form Speed Duration 10 Injection ($$$) 
 or Calcidiol or CalcitriolD - Slow 
 C -FastLong 10 Sun/UVB Slow Long 10 Topical 
 (skin patch/cream, vagina)Slow 
 Fast nanoNormal 9 Nanoemulsion -mucosal 
 perhaps activates VDRFast Normal 9? Inhaled (future) Fast Normal 8 Bio-D-Mulsion Forte Normal Normal 6 Water soluble (Bio-Tech) Normal Normal 4 Sublingual/spray 
 (some goes into gut)Fast Normal 3 Coconut oil based Slow Normal 2 Food (salmon etc.) Slow Normal 2 Olive oil based (majority) Slow Normal 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 VitaminDWikiOBJECTIVE 
 Dysbiosis is a common feature in the pathogenesis of inflammatory bowel diseases (IBD). Environmental factors, such as vitamin D deficiency, seem to play a role in the intestinal inflammation of IBD. The aim of this study was to investigate whether vitamin D administration has an impact on the bacterial composition in Crohn's disease (CD) compared to healthy controls (HC).METHODS 
 A prospective, longitudinal, controlled interventional analysis was conducted in seven patients with CD in clinical remission and 10 HC to investigate the effect of orally administrated vitamin D on the intestinal bacterial composition using 16S ribosomal RNA gene amplicon sequencing. Clinical parameters were assessed.RESULTS 
 In contrast to HC, microbial communities of CD patients changed significantly during early vitamin D administration. However, a further increase in vitamin D level was associated with a reversal of this effect and additionally with a decrease in the bacterial richness in the CD microbiome. Specific species with a high abundancy were found during vitamin D administration in CD, but not in HC; the abundancy of Alistipes, Barnesiella, unclassified Porphyromonadaceae (both Actinobacteria), Roseburia, Anaerotruncus, Subdoligranulum and an unclassified Ruminococaceae (all Firmicutes) increased significantly after 1‐week vitamin D administration in CD.CONCLUSIONS 
 Vitamin D has a specific influence on the bacterial communities in CD, but not in HC. Administration of vitamin D may have a positive effect in CD by modulating the intestinal bacterial composition and also by increasing the abundance of potential beneficial bacterial strains.Gut bacteria of Crohn's disease patients improved by Vitamin D – March 2018Printer Friendly Follow this page for updates15314 visitors, last modified 25 Feb, 2021, This page is in the following categories (# of items in each category)