Vitamin D: A magic bullet or a myth?
Clinical Nutrition, https://doi.org/10.1016/j.clnu.2019.12.028
P.L.M.ReijvenP.B.Soeters
Virtually all Vitamin D trials have been based on Vitamin D blood tests
There are at least 4 genes which can restrict the amount of vitamin D in the blood which can get to the tissues
Genetics category listing contains the following
see also
- Vitamin D Receptor has
530 items - Vitamin D Binding Protein = GC has
178 items - CYP27B1 has
63 items - CYP24A1 in title of 39+ items
- CYP2R1 25+ items
- Calcidiol has
48 items - Calcitriol has
62 items - Topical Vitamin D
- Nanoemulsion Vitamin D may be a substantially better form
- 1289 genes changed with higher doses of Vitamin D - RCT Dec 2019
- CYP3A4 (7 as of Dec 2022)
- Getting Vitamin D into your body
Vitamin D blood test misses a lot
- Vitamin D from coming from tissues (vs blood) was speculated to be 50% in 2014, and by 2017 was speculated to be 90%
- Note: Good blood test results (> 40 ng) does not mean that a good amount of Vitamin D actually gets to cells
- A Vitamin D test in cells rather than blood was feasible (2017 personal communication) Commercially available 2019
- However, test results would vary in each tissue due to multiple genes
- Good clues that Vitamin D is being restricted from getting to the cells
1) A vitamin D-related health problem runs in the family
especially if it is one of 51+ diseases related to Vitamin D Receptor
2) Slightly increasing Vitamin D shows benefits (even if conventional Vitamin D test shows an increase)
3) DNA and VDR tests - 100 to 200 dollars $100 to $250
4) PTH bottoms out ( shows that parathyroid cells are getting Vitamin d)
Genes are good, have enough Magnesium, etc.
5) Back Pain
probably want at least 2 clues before taking adding vitamin D, Omega-3, Magnesium, Resveratrol, etc- The founder of VitaminDWiki took action with clues #3&5
CYP27B1 category listing contains the following
The CYP27B1 gene activates Vitamin D in the Kidney, Skin, Lungs, Brain, Eyes Breasts etc.
Poor CYP27B1 is assocated with COVID, Miscarriage, Lupus, Alz, Parkinson, MSA, RicketsCYtochrome P450 family 27 subfamily B member 1 = 25-Hydroxyvitamin D3 1-alpha-hydroxylase
63 items in CYP27B1 category 343 articles in the Genetics 530 articles in Vitamin D Receptor 178 articles in Vitamin D Binding Protein - CYP27B1 and other genes are less activated in seniors
- CYP27B causes many health problems – March 2020
- Every Parkinson’s brain had a poor CYP27B1 gene
What can be done if have a poor CYP27B1
- Larger doses of Vitamin D
- More Bio-available: Gut-friendly form, Topical form, taken with fatty meal, taken with evening meal
- Additional sources: UV
- Increase Vitamin D metabolism: additional Magnesium, Omega-3
- All cytochrome P450 enzymes require Mg++ as a cofactor
- Increase the amount of Vitamin D in the blood that gets to cells: increase activation of VDR
Vitamin D blood test misses CYP27B1 and other genes
Cancers might alter CYP24A1 gene
Vitamin D Binding Protein has a list of health problems
Increased
RiskHealth Problem 11 X Preeclampsia 6.5X T1D in SA Blacks 6 X Food Allergy 5 X PTSD 4 X, 5X Kidney Cancer 4 X Poor Response to Oral Vitamin D 3 X Ear infection 2.8 X MS 2.5 X Severe Autism 2 X Colorectal Cancer 2 X Prostate Cancer -in those with dark skins 1.3 X Infertility
Vitamin D Receptor is associated in over 58 autoimmune studies
The risk of 44 diseases at least double with poor Vitamin D Receptor as of Oct 2019Download the PDF from VitaminDWiki
Summary
The interest in Vitamin D (Vit D) is increased after the finding of Vit D receptors in many different cells. This led to the hypothesis that Vit D may have more impact on human health than its role in bone health. Epidemiological studies found associations between low plasma levels of Vit D and the prevalence of many diseases. However, Large RCTs did not find convincing evidence for a positive effect of Vit D supplementation on cancer, cardiovascular disease, auto-immune disease and inflammatory diseases. In this review, the results are described of a literature search regarding the relationship between Vit D status and different diseases.Pubmed was used to find systematic reviews of observational studies describing the association between Vit D status, diseases (cancer, coronary heart diseases, auto-immune diseases, sepsis) and mortality. Subsequently, a search was performed for RCTs and the results of large RCTs are described. Studies with a positive intervention effect on primary or secondary outcome variables are summarized. No exclusion criteria were used.
The metabolism of Vit D is reviewed, its endogenous production and the intake from food, its activation and transport in the body. The article addresses the effects of diseases on the metabolism of Vit D with special focus on the role of Vit D Binding Protein and its effects on assessing Vit D status. Studies addressing the association between vitamin D status and cancer, cardiovascular diseases, auto-immune diseases, inflammation and severe illness are reviewed. A search for RCTs with positive effects of Vit D supplementation on different diseases yielded only a few studies. The vast majority of RCTs showed no significant positive effects. The presumed high prevalence of Vit D deficiency is questioned based on these results and on altered concentrations of Vit D binding protein, leading to low Vit D levels in plasma but not to low active Vit D levels during disease related inflammation In these conditions, plasma levels of Vit D are therefore not a valid reflection of Vit D status. Reversed causality is described as a possible factor interfering with the correct assessment of the Vit D status. It is concluded that further widespread fortification of foods and stimulation of supplement use should be reconsidered.
Vitamin D may be a magic bullet for the cells (not based on Vitamin D blood tests) – Jan 2020Printer Friendly Follow this page for updates5485 visitors, last modified 12 Jan, 2020, This page is in the following categories (# of items in each category)
- Vitamin D Binding Protein = GC has