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Overview Kidney and vitamin D


See also VitaminDWiki

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See also web

  • This Vitamin STOPS Proteinuria Fast & REPAIR KIDNEY! (Vitamin D) 9-minute video Jan 2024
  • Vitamin D/VDR in acute kidney injury: a potential therapeutic target - Nov 2020 -doi: 10.2174/0929867327666201118155625
  • Clinical Trials kidney and Vitamin D INTERVENTION 206 trials as of Feb 2024
  • Clinical Trials (kidney OR dialysis) AND "vitamin d" 674 studies Feb 2024
    • "There is not enough evidence showing that one type of active vitamin D is better than another, but there is much difference between their costs." More studies needed
  • Editorial over the Many Faces of Vitamin D in Chronic Kidney Disease: from Mineral to Immune-Inflammatory Modulator - Nov 2017
    "Taken together, the findings of Zhao et al. confirm the immune-inflammatory modulating capacity of vit D and expand the molecular basis to further explore its therapeutic potential in CKD"
     Download the PDF from VitaminDWiki__
  • Preserved circannual rhythm of vitamin D in kidney transplant patients. Sept 2012
    Incredibly Kidney transplant patients are advised to avoid sun exposure because of their high risk of skin cancer.
  • Arrhythmias in chronic kidney disease 2011
    "The arrhythmia burden of the patient with CKD is high, with the single greatest contributor to mortality in end stage renal disease (ESRD) being sudden cardiac death (SCD)"
  • Magnesium – its role in CKD. Nefrologia, May 2013, full text online
    Magnesium for treatment of hyperphosphataemia in patients with chronic kidney disease
  • Dialysis Takes a Toll Dec 2013 New York Times
    Huge health problems with dialysis. No mention of vitamin D
    References a RCT of Dialysis. More of the group which which was randomly assigned to delayed dialysis (7 months) survived
  • Vitamin D supplementation and mortality risk in chronic kidney disease: a meta-analysis of 20 observational studies. PDF at bottom of this page
    Compares different types of vitamin D - no analysis of Magnesium, etc.
  • Treatment Failure of Active Vitamin D Therapy in Chronic Kidney Disease: Predictive Factors Sept 2015
    ". . . up to 50% of patients may experience treatment failure eventually because of development of hypercalcemia or resistant SHPT, characterized by an elevated intact PTH (iPTH) level despite treatment"
    "We propose a definition of vitamin D treatment failure as iPTH >600 pg/ml after 6 months of intravenous active vitamin D treatment and corrected total calcium serum levels >10.2 mg/dl,. .
  • Patient Voices: Kidney Disease New York Times Jan 2018
    Affecting nearly 30 million in the United States
    " chronic kidney disease can be caused by diabetes, chronic hypertension, a genetic factor or a rare disease"
  • Vitamin D treatment and mortality in chronic kidney disease: a systematic review and meta-analysis. 2013 PDF at bottom of this page
    14 studies, 195,000 patients, Risk of death reduced 49% if had gotten ANY AMOUNT of ANY KIND of vitamin supplementation
    Imagine how many fewer deaths if had gotten the right amount of the right kind of vitamin D, along with Magnesium

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Kidney is one of only 2 ways that vitamin D is activated in the body

A guess (based on NO data) 50% of vitamin D is activated by the kidneys

VitaminDWiki - Vitamin D Deficiency Vicious circles

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Low vitamin D ==> Diabetes ==> Kidney failure
Kidney failure ==> Low Vitamin D and poor regulation of Magnesium
Activated vitamin D decreases with worsening of CKD
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Incidence of Chronic Kidney Disease - US

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Perhaps 120% increase incidence in a decade
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Dark skinned people (with less vitamin D) have 3X more incidence of CKD
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http://vitamindwiki.com/tiki-index.php?page_id=5644
Click on chart for more information


Causes of CKD

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Only 15% kidney function remains by stage 5

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CKD signs and symptoms

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Factoids from The Body by Bill Bryson, 2019

  • It remains something of a mystery even now as to why we have two kidneys.
  • The kidneys process about 190 quarts of water and 3.3 pounds of salt. daily
  • Between the ages of forty and seventy, kidney filtration capacity drops by about 50 percent.

Associations with Kidney: Calcitriol 16 Intervention 13 Meta-analysis 13 Diabetes 12 Cardiovascular 12 Skin - Dark 8 Top news 7 Intervention - non daily 6 Genetics 6 Virus 5 Infant-Child 5 Magnesium 5 etc.

and    4 each of Calcidiol High-Dose Vitamin D3 instead of D2 Deficiency How much Vitamin D Vitamin K Tests Vitamin D Receptor Inflammation Vit D Binding Protein Hypertension as of Feb 2024

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Summary of Associations

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Results

13 pages in both categories: Kidney + Intervention

Page Hits Categories Major change
Fracture 4X less likely following kidney transplant if high-dose Vitamin D (100,000 every 2 weeks) – RCT Jan 2023 Kidney, Intervention, Intervention - non daily, High-Dose 25 Jan, 2023
Hyperparathyroidism resulting from CKD eliminated by 8,000 IU of vitamin D daily for 12 weeks– RCT 2018 Kidney, Intervention 13 Dec, 2022
Bone biomarkers increased equally by daily, weekly, or monthly Vitamin D (CKD in children in this case) – Nov 2022 Bone - Health, Kidney, Intervention, Intervention - non daily 02 Nov, 2022
Vitamin D treatment of Chronic Kidney Disease: monthly better than daily – RCT May 2022 Skin - Dark, Kidney, Intervention, Zinc, Intervention - non daily, Calcidiol, Better than daily 10 Jun, 2022
1,000 IU of vitamin D provides little benefit (Kidney transplant in this case) – April 2021 Kidney, Intervention 22 Apr, 2021
Kidney patients who happened to be getting high-dose Calcitriol were 9X less likely to die of COVID-19 - April 6, 2021 Kidney, Intervention, Calcitriol , Virus, High-Dose 13 Apr, 2021
Chronic Kidney Disease (stage 3) slowed by 30 ng of Vitamin D and Calcitriol – Dec 2019 Kidney, Intervention, Calcitriol 06 Dec, 2019
Diabetic nephropathy (Kidney) treated by 50,000 IU of vitamin D weekly – RCT Jan 2019 Kidney, Diabetes, Intervention, Intervention - non daily 17 Nov, 2018
Hemodialysis patients (CKD) helped by weekly 50,000 IU of vitamin D – Jan 2017 Kidney, Intervention, Intervention - non daily 27 Jul, 2017
7100 IU (50000 weekly) restored vitamin D levels for those with Chronic Kidney Disease – July 2012 Kidney, Intervention, Top news, Intervention - non daily 21 Sep, 2016
Kidney disease helped by active or high dose Vitamin D - Feb 2014 Kidney, Intervention, Calcitriol , High-Dose 28 Apr, 2016
Peritoneal Dialysis nicely treated by active vitamin D – July 2013 Kidney, Intervention 04 Feb, 2015
Chronic Kidney Disease reduced with 3600 IU vitamin D (50000 twice a month)– RCT Aug 2012 Kidney, Tests for Vitamin D, Intervention 11 Jun, 2014

4 pages in both categories: Kidney + Vitamin D3 instead of D2

5 pages in both categories: Kidney + Infant-Child

8 pages in both categories: Kidney + Skin - Dark

4 pages in both categories: Kidney + Deficiency of Vitamin D

16 pages in both categories: Kidney + Cardiovascular

Page Hits Categories Major change
Top 10 health problems worse since COVID-19 - Aug 2025 Cardiovascular, Kidney, Diabetes, Autoimmune, Depression, Sleep 25 Aug, 2025
Vitamin D, minerals (Mg, Ca, K, Phosphate, Na, Fe, Zn, Cl, Se) and health – 15 studies 2024 Cardiovascular, Kidney, Diabetes, Obesity, Vitamin D and Magnesium, Kidney Stones, Gut, Metabolic Syndrome, Hypertension, Sleep, Vitamin D and Iron, Zinc, Parathyroid, AI 05 Feb, 2025
How vitamin D benefits normal organs and Long-COVID organs – Jan 2025 Cardiovascular, Liver, Kidney, Gut, Cognitive, Virus 12 Dec, 2024
DNA analysis of genes (Polygenic risk) shows increased risk of 9 health problems (all 9 fought by Vitamin D) – Feb 2024 Cardiovascular, Kidney, Diabetes, Cancer - Breast, Genetics , Cholesterol 07 Jul, 2024
Vitamin D helps organ transplant - many studies Cardiovascular, Liver, Kidney, Trauma and surgery 30 Nov, 2023
Inflammation of blood vessels (vasculitis): low Vitamin D and 22 X more likely to have kidney problems – March 2022 Cardiovascular, Kidney, Autoimmune 13 Mar, 2022
26 health factors increase the risk of COVID-19 – all are proxies for low vitamin D Skin - Dark, Deficiency of Vitamin D, Cardiovascular, Kidney, Diabetes, Obesity, Cancer, Cystic Fibrosis, High Risk, Top news, Hypertension, Virus 03 Nov, 2021
Vitamin D deficiency associated with increased risk of many health problems in 58,000,000 Americans - Nov 2020 Cardiovascular, Kidney, Diabetes, Hypertension, Stroke 24 Nov, 2020
Psoriasis is associated with kidney disease, heart problems, diabetes, etc – Nov 2015 Cardiovascular, Kidney, Diabetes, Metabolic Syndrome 30 Nov, 2015
Vitamin D, the autonomic nervous system, and cardiovascular risk - Editorial April 2015 Cardiovascular, Kidney 10 May, 2015
Inflammatory diseases: review of vitamin D, with many tables – May 2014 Breathing, Cardiovascular, Kidney, Multiple Sclerosis, Gut, Top news, Inflammation 30 Sep, 2014
Vitamin D decreases incidence of disease How much Vitamin D, Cardiovascular, Kidney, Diabetes, Multiple Sclerosis, Rickets, Health, About D - introduction, Cancer 29 Nov, 2013
Protective cardiovascular and renal actions of vitamin D and sex hormones – June 2013 Cardiovascular, Kidney 14 Nov, 2013
Table of outcomes for seniors vs vitamin D level Seniors, Cardiovascular, Kidney, Diabetes, Mortality and D, Depression 04 Sep, 2011
Editorial on Vitamin D deficiency– Current Drug topics – Jan 2011 Cardiovascular, Kidney 13 Dec, 2010
Therapeutic window for vitamin D and chronic kidney disease How much Vitamin D, Cardiovascular, Kidney 25 Apr, 2010

17 pages in both categories: Kidney + Diabetes

Page Hits Categories Major change
Top 10 health problems worse since COVID-19 - Aug 2025 Cardiovascular, Kidney, Diabetes, Autoimmune, Depression, Sleep 25 Aug, 2025
Metformin appears to activate the Vitamin D Receptor (more D to kidney cells, etc,) - March 2025 Kidney, Diabetes, Vitamin D Receptor, Virus, AI 07 Mar, 2025
Vitamin D, minerals (Mg, Ca, K, Phosphate, Na, Fe, Zn, Cl, Se) and health – 15 studies 2024 Cardiovascular, Kidney, Diabetes, Obesity, Vitamin D and Magnesium, Kidney Stones, Gut, Metabolic Syndrome, Hypertension, Sleep, Vitamin D and Iron, Zinc, Parathyroid, AI 05 Feb, 2025
DNA analysis of genes (Polygenic risk) shows increased risk of 9 health problems (all 9 fought by Vitamin D) – Feb 2024 Cardiovascular, Kidney, Diabetes, Cancer - Breast, Genetics , Cholesterol 07 Jul, 2024
Magnesium Depletion Score predicts increased risk of various health problems Kidney, Diabetes, Osteoporosis, Vitamin D and Magnesium, Kidney Stones, Hypertension, Sleep 05 Jun, 2024
Diabetics 5X more-likely to get CKD if have very low Vitamin D – June 2022 Kidney, Diabetes 30 Jun, 2022
26 health factors increase the risk of COVID-19 – all are proxies for low vitamin D Skin - Dark, Deficiency of Vitamin D, Cardiovascular, Kidney, Diabetes, Obesity, Cancer, Cystic Fibrosis, High Risk, Top news, Hypertension, Virus 03 Nov, 2021
Vitamin D deficiency associated with increased risk of many health problems in 58,000,000 Americans - Nov 2020 Cardiovascular, Kidney, Diabetes, Hypertension, Stroke 24 Nov, 2020
Fructose reduces blood levels of active vitamin D Deficiency of Vitamin D, Kidney, Diabetes, Genetics 13 Jun, 2020
Diabetic kidney problems in children last longer if low vitamin D – May 2019 Kidney, Diabetes 11 Jun, 2019
Vitamin D helps Diabetic Nephropathy kidneys – meta-analysis April 2019 Kidney, Diabetes, Meta-analysis of Vitamin D 23 Apr, 2019
Diabetic nephropathy (Kidney) treated by 50,000 IU of vitamin D weekly – RCT Jan 2019 Kidney, Diabetes, Intervention, Intervention - non daily 17 Nov, 2018
Diabetic nephropathy (Kidney problem) 1.8 X more likely if poor Vitamin D Receptor – meta-analysis July 2017 Kidney, Diabetes, Meta-analysis of Vitamin D, Vitamin D Receptor 14 Jul, 2017
Psoriasis is associated with kidney disease, heart problems, diabetes, etc – Nov 2015 Cardiovascular, Kidney, Diabetes, Metabolic Syndrome 30 Nov, 2015
Diabetic Nephropathy – active vitamin D helps – Dec 2014 Kidney, Diabetes 22 Oct, 2015
Vitamin D decreases incidence of disease How much Vitamin D, Cardiovascular, Kidney, Diabetes, Multiple Sclerosis, Rickets, Health, About D - introduction, Cancer 29 Nov, 2013
Table of outcomes for seniors vs vitamin D level Seniors, Cardiovascular, Kidney, Diabetes, Mortality and D, Depression 04 Sep, 2011

7 pages in both categories: Kidney + Top news

6 pages in both categories: Kidney + Hypertension

7 pages in both categories: Kidney + Virus

6 pages in both categories: Kidney + Intervention - non daily

4 pages in both categories: Kidney + Trauma and surgery

16 pages in both categories: Kidney + Calcitriol

Page Hits Categories Major change
Omega 3 increases vitamin D in the blood – many studies Kidney, Top news, Vitamin D and Omega-3, Calcitriol 06 Jul, 2022
Calcitriol (active Vitamin D) prevents and treats COVID (with Chronic Kidney Disease in this case) June 2022 Kidney, Calcitriol , Virus 05 Jul, 2022
Chronic Kidney Disease study not aware of appropriate forms of vitamin D – March 2014 Kidney, Calcitriol 10 Jun, 2022
Overview Kidney and vitamin D Kidney, Overviews, Calcitriol , Associations 01 Jan, 2022
Fully-activated Vitamin D (Calcitriol) is produced inside and outside of the kidneys – July 2020 Kidney, Calcitriol 14 Sep, 2021
Kidney patients who happened to be getting high-dose Calcitriol were 9X less likely to die of COVID-19 - April 6, 2021 Kidney, Intervention, Calcitriol , Virus, High-Dose 13 Apr, 2021
Chronic Kidney Disease (stage 3) slowed by 30 ng of Vitamin D and Calcitriol – Dec 2019 Kidney, Intervention, Calcitriol 06 Dec, 2019
Vitamin D3 becomes Calcidiol which becomes Calcitriol Kidney, Forms of Vitamin D, Calcitriol , Calcidiol 25 Jan, 2017
Vitamin D3 vs serum D3 (Calcitriol, HyD) – Jan 2012 Kidney, Hypertension, Calcitriol 05 Dec, 2016
Vitamin D for kidney disease – use native or active form – Jan 2016 Kidney, Calcitriol 20 Oct, 2016
Kidney failure – still debating what form of vitamin D to use – April 2016 Kidney, Vitamin D and Omega-3, Calcitriol 28 Apr, 2016
Calcitriol (active Vitamin D) recommended after kidney transplant – March 2014 Kidney, Calcitriol 28 Apr, 2016
Kidney disease helped by active or high dose Vitamin D - Feb 2014 Kidney, Intervention, Calcitriol , High-Dose 28 Apr, 2016
Magnesium reduced calcitriol (active vitamin D) artery calcification in CKD by 50 percent – Oct 2015 Kidney, Calcitriol 22 Oct, 2015
Time-release form of active vitamin D granted a patent for chronic kidney disease – July 2014 Kidney, Calcitriol 26 Jul, 2015
Not as much active vitamin D if poor kidney function and low vitamin D – March 2015 Kidney, Calcitriol 26 Jul, 2015

4 pages in both categories: Kidney + How much Vitamin D

4 pages in both categories: Kidney + Depression

13 pages in both categories: Kidney + Meta-analysis of Vitamin D

Page Hits Categories Major change
Chronic Kidney not helped much by little vitamin D (none got to a 75 nmol level) – meta-analysis Sept 2023 Kidney, Meta-analysis of Vitamin D 25 Nov, 2023
Dialysis patients 23 percent more likely to live if had just 10 ng more Vitamin D – meta-analysis Feb 2018 Kidney, Meta-analysis of Vitamin D 29 Sep, 2021
Vitamin D helps Diabetic Nephropathy kidneys – meta-analysis April 2019 Kidney, Diabetes, Meta-analysis of Vitamin D 23 Apr, 2019
Dialysis patients who added Vitamin D were 41 percent less likely to get infection – Meta-analysis July 2018 Kidney, Meta-analysis of Vitamin D 31 Jul, 2018
Chronic Kidney Disease mortality is 60 percent less likely if good vitamin D – meta-analysis July 2017 Kidney, Mortality and D, Meta-analysis of Vitamin D 18 Jul, 2017
Diabetic nephropathy (Kidney problem) 1.8 X more likely if poor Vitamin D Receptor – meta-analysis July 2017 Kidney, Diabetes, Meta-analysis of Vitamin D, Vitamin D Receptor 14 Jul, 2017
Chronic Kidney disease not helped much by vitamin D provided you ignore dose size – meta-analysis Sept 2013 Kidney, Meta-analysis of Vitamin D 01 Feb, 2017
Kidney cancer 22 percent less likely if high vitamin D – meta-analysis Nov 2015 Kidney, Meta-analysis of Vitamin D, Cancer - Other 30 Mar, 2016
Standard and artificial vitamin D both help Chronic Kidney Disease – meta-analysis April 2013 Kidney, Meta-analysis of Vitamin D 24 Apr, 2013
Vitamin D reduced risk of death of Chronic Kidney Disease by 30 percent: Meta-analysis March 2013 Kidney, Meta-analysis of Vitamin D 11 Mar, 2013
Each 10 ng increase in vitamin D decreased kidney disease death by 14 percent – May 2011 Kidney, Meta-analysis of Vitamin D 04 Nov, 2011
Chronic Kidney Disease meta-analysis of vitamin D – Jan 2011 Kidney, Meta-analysis of Vitamin D 11 Aug, 2011
Meta-analysis finds vitamin D helps chronic kidney disease – Sept 2010 Kidney, Meta-analysis of Vitamin D 06 Oct, 2010

4 pages in both categories: Kidney + Vitamin D and Vitamin K

4 pages in both categories: Kidney + Tests for Vitamin D

7 pages in both categories: Kidney + Genetics

5 pages in both categories: Kidney + Vitamin D Receptor

4 pages in both categories: Kidney + High-Dose

7 pages in both categories: Kidney + Vitamin D and Magnesium

5 pages in both categories: Kidney + Inflammation

4 pages in both categories: Kidney + Vit D Binding Protein

4 pages in both categories: Kidney + Calcidiol

Overview Kidney and vitamin D        
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Attached files

ID Name Comment Uploaded Size Downloads
12709 CKD signs and symptoms.jpg admin 02 Oct, 2019 73.28 Kb 2897
12708 CKD percent function.jpg admin 02 Oct, 2019 34.03 Kb 2767
12707 Causes of CKD.jpg admin 02 Oct, 2019 18.49 Kb 2641
12706 Calcitriol vs CKD stages.jpg admin 02 Oct, 2019 38.09 Kb 2635
8832 Many Faces of Vitamin D in Chronic Kidney.pdf admin 28 Nov, 2017 312.51 Kb 1405
4869 CKD Race.jpg admin 12 Jan, 2015 47.27 Kb 10121
4868 CKD incidence.jpg admin 12 Jan, 2015 32.58 Kb 8763
3374 Dialysis, type of vitamin D, and mortality meta-analysis 2013.pdf admin 13 Dec, 2013 1.38 Mb 2562
3373 Reduced risk of death if any vitamin D.jpg admin 12 Dec, 2013 57.69 Kb 8563
3371 Meta-analysis Reduced risk of death of get any vitamin D therapy - 2013.pdf admin 12 Dec, 2013 200.93 Kb 2635
1456 Vicious circle kidney.jpg admin 17 Jul, 2012 5.14 Kb 9830