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Better than Daily

33 items in BETTER THAN DAILY category

Non-daily (Bolus) is better:

  1. Better compliance for everyone
    • Fewer opportunities to forget.
    • If happen to forget, just take the dose many days later
    • Fewer times to have to take a pill - for those who dislike doing so
  2. Non-daily gets more vitamin D to the cells for the ~20% who have a poor Vitamin D Receptor

VitaminDWiki – Weekly, Monthly Vitamin D are typically better than daily - many studies

VitaminDWiki - Take vitamin D3 daily, weekly, or bi-weekly - many studies

The Vitamin D Receptor is activated by high concentration gradient and 13+ other things

+Image

33 Better than Daily studies

Examples of non-daily vitamin D studies (does not include loading dose)

One pill every two weeks gives you all the vitamin D most adults need
50,000 IU of vitamin D every two weeks – Jordan conclusion - RCT July 2017
22 diseases proven to be prevented/treated by biweekly Vitamin D
10 additional diseases with weekly Vitamin D

Some people mistakenly believe that the body cannot store vitamin D, so must be taken daily

  All humans and animals can store Vitamin D, which was necessary to survive rainy seasons, winters, etc.
Example of mistaken belief: Do You Take Your Vitamin D Daily? Grassrootshealth June 2019

Loading Dose in VitaminDWiki

  • Overview Loading of vitamin D - which is sometimes just a single dose
  • Loading dose for Vitamin D category listing has 211 items along with related searches
    • Loading doses typically restore Vitamin D levels in 1 to 30 days
      • Loading doses should be followed by maintenance doses - which can be daily or bolus

Omega-3 is better absorbed weekly than daily (rats fo far)

Omega-3 weekly is more bio-available than daily (rat study) – July 2015

Note: I tried taking Omega-3 weekly instead of daily -Aug 2024
I took 4 days worth of Omega-3 emulsion at a single sitting, once a week
Got an Omega-3 test at the end of 5 weeks__
My Omega-3 index was essentially unchanged from my previous daily dosing. Index = 8

15+ VitaminDWiki pages with BETTER THAN DAILY in title

This list is automatically updated

Items found: 15

Intervention - non-daily AND Diabetes

Intervention - non-daily AND Pain

275 studies used Non-daily intervention

Diabetes 22;  Better than daily 18;  Pregnancy 17;  Loading dose 16;  Pain - chronic 13;  Breathing 12;  How much Vitamin D 11;  Obesity 10;  Infant-Child 10;  Injection 9;  Gut 8;  Depression 8;  Cardiovascular 7;  Falls and Fractures 7;  Women 7;  Multiple Sclerosis 6;  Virus 6;  Sports 6;  Trauma and surgery 6;  Youth 5;  Seniors 5;  Hypertension 5;  HIV 5;  Sleep 4;  Liver 4;  Skin - Dark 4;  Kidney 4;  Immunity 4;  Cognitive 4;  How;  when to take Vit. D 4 as of Oct 2022

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Summary of Associations

Associated category Associations
Pain - chronic
16
Intervention
246
Obesity
11
Better than daily
22
Falls and Fractures
9
Pregnancy
17
Depression
13
Liver
4
Middle East
4
Youth
6
Women
11
Skin - Dark
5
How much Vitamin D
11
Top news
23
Cardiovascular
8
Diabetes
23
Sports and Vitamin D
6
Multiple Sclerosis
10
Virus
9
Sleep
4
Kidney
6
Seniors
5
Breathing
13
Injection
12
Immunity
7
Antibiotics, probiotics
4
Infant-Child
17
Hypertension
5
Cancer - Breast
4
Cancer - after diagnosis
4
Loading dose for Vitamin D
18
Cognitive
5
Gut
8
How, when to take Vit. D
4
Trauma and surgery
6
High-Dose
6
HIV
5
Osteoarthritis
4

Results

16 pages in both categories: Intervention - non daily + Pain - chronic

Page Hits Categories Major change
Fibromyalgia pain, fatigue, etc. reduced by 50,000 IU of Vitamin D for 12 weeks – Sept 2023 2334 Pain - chronic, Intervention, Intervention - non daily 04 Oct, 2023
Less morphine recall if preceded by twice a week Vitamin D (400 IU per kg in rats, human weights 80 kg) – Aug 2023 327 Pain - chronic, Intervention, Intervention - non daily 15 Aug, 2023
Pain not reduced by 60,000 IU monthly vitamin D (need 50,000 IU weekly) – RCT Aug 2023 374 Pain - chronic, Intervention, Intervention - non daily 22 Jul, 2023
Raynaud's pain decreased with 600,000 IU monthly vitamin D – RCT May 2012 62513 Pain - chronic, Intervention, Intervention - non daily 17 Jul, 2023
Pain reduced by Vitamin D (60K weekly, then monthly) plus daily Calcium in 3 months – May 2021 2562 Pain - chronic, Vitamin D and Calcium, Intervention, Intervention - non daily 16 Jul, 2021
Fibromyalgia treated with Vitamin D (50,000 IU weekly for 3 months) – 2016, 2017, 2018, 2019 9330 Pain - chronic, Intervention, Top news, Intervention - non daily, Quality of Life 19 Oct, 2019
Growing pains reduced 60 percent by monthly Vitamin D – March 2014 12288 Pain - chronic, Intervention, Infant-Child, Intervention - non daily 19 May, 2019
100,000 IU of vitamin D monthly decreases use of NASIDs by 13 percent if low vitamin D – RCT May 2018 4213 Pain - chronic, Intervention, Intervention - non daily 25 Dec, 2018
Rheumatoid Arthritis pain reduced by monthly 100,000 IU of Vitamin D – Oct 2018 3474 Pain - chronic, Rheumatoid Arthritis, Intervention, Intervention - non daily 05 Oct, 2018
Fibromyalgia pain substantially reduced by weekly Vitamin D (50,000 IU) – June 2018 6956 Pain - chronic, Intervention, Top news, Intervention - non daily 23 Jun, 2018
Knee osteoarthritis treated with vitamin D, weekly 50,000 IU – May 2015 10094 Pain - chronic, Intervention, Osteoarthritis, Intervention - non daily 20 Jul, 2017
Angina dramatically reduced by injections of vitamin D twice a month (300,000 IU) – Jan 2015 8975 Cardiovascular, Pain - chronic, Intervention, Intervention - non daily, Injection 05 Apr, 2017
Knee osteoarthritis pain reduced by 60,000 IU monthly vitamin D following loading dose – RCT Nov 2013 6756 Pain - chronic, Intervention, Osteoarthritis, Intervention - non daily 24 Dec, 2016
Pain of Diabetic Neuropathy reduced with weekly 50,000 IU vitamin D– CT Feb 2015 12042 Diabetes, Pain - chronic, Intervention, Intervention - non daily 22 Oct, 2015
Fibromyalgia pain with trazodone reduced by 50 percent with weekly 50,000 IU of vitamin D – RCT Nov 2014 18827 Pain - chronic, Intervention, Intervention - non daily 22 Nov, 2014
7 improvements in lives of veterans with chronic pain with 50,000 IU vitamin D weekly – June 2012 18387 Pain - chronic, Intervention, Top news, Sleep, Intervention - non daily 20 Aug, 2014

246 pages in both categories: Intervention - non daily + Intervention

Page Hits Categories Major change
Breast Cancer cure rate by chemotherapy increased 2.3 X by Vitamin D (50,000 IU weekly) - RCT April 2025 Cancer - Breast, Intervention, Intervention - non daily 15 Apr, 2025
CIS (MS) reduced 36% by two capsules of 50,000 IU of Vitamin D taken biweekly – RCT March 2025 Multiple Sclerosis, Intervention, Intervention - non daily, High-Dose 10 Mar, 2025
Rickets: Vitamin D safe and effective - ten doses of 60,000 IU or 1 injection of 600,000 IU – Feb 2025 7 Rickets, Intervention, Intervention - non daily, Injection 31 Jan, 2025
Smoking depression, etc. reduced by Vitamin D (bi-weekly, 50,000 IU) - RCT Dec 2021 1 Breathing, Depression, Cancer - Lung, Intervention, Intervention - non daily 19 Jan, 2025
Type 1 Diabetic inflammation reduced by 50 ng of Vitamin D - Dec 2024 8 Diabetes, Intervention, Intervention - non daily 21 Dec, 2024
Depression cost-effectively reduced by 50,000 IU of Vitamin D monthly (Iranian teens) – July 2023 9 Depression, Cost savings with Vitamin D, Middle East, Youth, Intervention, Intervention - non daily 28 Nov, 2024
Sleep disorders nicely treated by Vitamin D (50,000 IU twice a month) – RCT May 2017 1 Intervention, Sleep, Intervention - non daily 16 Oct, 2024
Children had a better response to Vitamin D given every 2 weeks than daily – RCT Aug 2024 2 Intervention, Infant-Child, Intervention - non daily, Better than daily 15 Aug, 2024
Viral infections reduced 40% by monthly 100,000 IU Vitamin D – RCT review Aug 2024 2 Immunity, Intervention, Virus, Intervention - non daily, High-Dose 13 Aug, 2024
Long-COVID fatigue, anxiety, and cognition treated by 60,000 IU of vitamin D weekly – RCT July 2024 1 Intervention, Virus, Intervention - non daily 29 Jul, 2024
50,000 IU of Vitamin D monthly is safe for 1 year, levels still rising – June 2024 Intervention, Intervention - non daily 13 Jun, 2024
Single 600,000 IU dose of nanoemulsion Vitamin D is safe and effective to fight COVID, even if delay until enter ICU – RCT May 2024 1098 Loading dose for Vitamin D, Intervention, Top news, Virus, Intervention - non daily 01 Jun, 2024
Children with ADHD again helped by 50,000 IU weekly Vitamin D – RCT June 2024 8 Intervention, Intervention - non daily, ADHD 18 May, 2024
COVID deaths cut in half by a single dose of 600,000 IU of Vitamin D - RCT Jan 2024 326 Intervention, Virus, Intervention - non daily 31 Jan, 2024
PMS reduced by 50,000 IU every two weeks - RCT Jan 2024 268 Intervention, Women, Intervention - non daily 15 Jan, 2024
Vitamin D loading dose of 30,000 IU twice a week is safe and effective – RCT July 2023 298 Loading dose for Vitamin D, Intervention, Top news, Intervention - non daily 22 Dec, 2023
Monthly vitamin D dosing better for children than daily (again) - Oct 2023 670 Intervention, Infant-Child, Intervention - non daily, Better than daily 15 Nov, 2023
COPD fought by Vitamin D - many studies 16340 Breathing, Intervention, Intervention - non daily 23 Oct, 2023
Fibromyalgia pain, fatigue, etc. reduced by 50,000 IU of Vitamin D for 12 weeks – Sept 2023 2334 Pain - chronic, Intervention, Intervention - non daily 04 Oct, 2023
Acute respiratory tract infections not reduced by Vitamin D if already have a good level – Jan 2021 378 Seniors, Breathing, Intervention, Intervention - non daily 30 Sep, 2023
Muscles improved in women with 50,000 IU vitamin D weekly (8 weeks) plus daily Magnesium – RCT Sept 2020 824 Vitamin D and Magnesium, Intervention, Falls and Fractures, Women, Intervention - non daily 16 Sep, 2023
Venous ulcers healed 4X faster with weekly 50,000 IU vitamin D – RCT Oct 2012 1069 Intervention, Top news, Intervention - non daily 08 Sep, 2023
Senior cognition improved in 4 ways by Vitamin D (50,000 IU weekly for 8 weeks) – Sept 2023 384 Intervention, Cognitive, Intervention - non daily 06 Sep, 2023
Chronic Periodontitis reduced by Vitamin D (60,000 IU weekly for 8 weeks) – RCT July 2023 361 Dental, Intervention, Intervention - non daily 01 Sep, 2023
Bone fractures of children not reduced if given little vitamin D, no Calcium etc. – RCT May 2023 783 Bone - Health, Intervention, Infant-Child, Falls and Fractures, Intervention - non daily 27 Aug, 2023
Less morphine recall if preceded by twice a week Vitamin D (400 IU per kg in rats, human weights 80 kg) – Aug 2023 327 Pain - chronic, Intervention, Intervention - non daily 15 Aug, 2023
Breast Cancer survival: 44% with just 10,000 IU of vitamin D per week, 33% with placebo – RCT Dec 2023 367 Cancer - Breast, Cancer - after diagnosis, Intervention, Intervention - non daily 13 Aug, 2023
Vitamin D response independent of dosing interval – meta-analysis July 2023 692 Meta-analysis of Vitamin D, Intervention, Intervention - non daily, Better than daily 03 Aug, 2023
Pain not reduced by 60,000 IU monthly vitamin D (need 50,000 IU weekly) – RCT Aug 2023 374 Pain - chronic, Intervention, Intervention - non daily 22 Jul, 2023
Raynaud's pain decreased with 600,000 IU monthly vitamin D – RCT May 2012 62513 Pain - chronic, Intervention, Intervention - non daily 17 Jul, 2023
Gestational Diabetes reduced with 50,000 IU of vitamin D every 3 weeks and daily Calcium – RCT June 2014 172254 Pregnancy, Diabetes, Intervention, Top news, Intervention - non daily 17 Jul, 2023
Proof that Vitamin D Works Overviews, Intervention, Intervention - non daily 16 Jul, 2023
Cardiovascular events – need more than monthly 60,000 IU vitamin D to prevent other than infarction – June 2023 1285 Cardiovascular, Intervention, Intervention - non daily 13 Jul, 2023
50,000 IU of Vitamin D every 2 weeks reduced gestational diabetes – RCT Feb 2015 3197 Pregnancy, Intervention, Intervention - non daily 12 Jul, 2023
Multiple Sclerosis treated equally by UVB and weekly 50,000 IU of Vitamin D – RCT July 2023 1143 UV and Vitamin D, Multiple Sclerosis, Intervention, Intervention - non daily 18 Jun, 2023
Tuberculosis not prevented by a tiny amount of vitamin D (equiv to 1,400 IU daily) – RCT May 2023 374 Tuberculosis, Intervention, Intervention - non daily 22 May, 2023
TB not treated by vitamin D given for only 2 months – RCT Sept 2017 500 Tuberculosis, Intervention, Intervention - non daily 22 May, 2023
Mild Obstructive Sleep Apnea decreased by 50,000 IU weekly vitamin D – June 2021 618 Intervention, Sleep, Intervention - non daily 20 May, 2023
Chronic tonsillitis virtually eliminated in children by Vitamin D (50,000 IU weekly) – RCT May 2023 1561 Breathing, Intervention, Infant-Child, Intervention - non daily 20 May, 2023
Response to infant 2,000 IU Vitamin D daily was in 194 ng, monthly dosing was 20% less – RCT May 2023 760 Intervention, Infant-Child, Intervention - non daily 17 May, 2023
Breast Cancer trial using 50,000 IU Vitamin D weekly cancelled (no funding) 739 Cancer - Breast, Cancer - after diagnosis, Intervention, Intervention - non daily 18 Apr, 2023
Half as many problems if take Vitamin D (300,000 IU) before thyroidectomy – RCT Jan 2021 1241 Trauma and surgery, Loading dose for Vitamin D, Thyroid and parathyroid, Intervention, Intervention - non daily 24 Feb, 2023
Fracture 4X less likely following kidney transplant if high-dose Vitamin D (100,000 every 2 weeks) – RCT Jan 2023 363 Kidney, Intervention, Intervention - non daily, High-Dose 25 Jan, 2023
Lupus: 60,000 IU Vitamin D monthly got to only 34 ng, not enough to help – RCT Jan 2023 631 Lupus, Intervention, Intervention - non daily 04 Jan, 2023
Anxiety and Depression decreased in senior prediabetics with weekly 25,000 IU of Vitamin D – RCT Sept 2022 396 Depression, Intervention, Intervention - non daily 22 Dec, 2022
Depression decreased by Vitamin D (12th study in VitaminDWiki) – RCT Nov 2022 2391 Depression, Intervention, Intervention - non daily 12 Nov, 2022
Diabetes prevented by 50,000 IU vitamin D monthly (Iran) – Jan 2022 2489 Diabetes, Cost savings with Vitamin D, Middle East, Intervention, Intervention - non daily 03 Nov, 2022
Bone biomarkers increased equally by daily, weekly, or monthly Vitamin D (CKD in children in this case) – Nov 2022 616 Bone - Health, Kidney, Intervention, Intervention - non daily 02 Nov, 2022
Immune systems of overweight black women improved by monthly 60,000 IU Vitamin D – RCT Oct 2022 824 Skin - Dark, Immunity, Intervention, Women, Intervention - non daily 14 Oct, 2022
Diabetic inflammation synergistically decreased by Vitamin D and exercise – RCT June 2022 2031 Sports and Vitamin D, Diabetes, Intervention, Intervention - non daily 09 Oct, 2022
Vitamin D does not help when most are not deficient (cataract surgery in this case) – RCT Sept 2022 335 Vision, Intervention, Intervention - non daily 30 Sep, 2022
Vitamin D treatment of Chronic Kidney Disease: monthly better than daily – RCT May 2022 2139 Skin - Dark, Kidney, Intervention, Zinc, Intervention - non daily, Calcidiol, Better than daily 10 Jun, 2022
Several rheumatic diseases treated by high-dose vitamin D, but made worse if Calcium was added – April 2022 2001 Rheumatoid Arthritis, Vitamin D and Calcium, Intervention, Osteoarthritis, Intervention - non daily, High-Dose 28 Mar, 2022
Influenza vaccine antibodies not change with Vitamin D – 21 ng or 44 ng – RCT Feb 2019 2390 Intervention, Virus, Intervention - non daily 22 Mar, 2022
Monthly vitamin D helped hearts with low vitamin D a bit (need it more frequently) – RCT March 2022 1746 Cardiovascular, Intervention, Intervention - non daily 11 Mar, 2022
100,000 IU of Vitamin D3 monthly for 4 months to diabetics (D2 bombed) – RCT Dec 2019 2016 Diabetes, Vitamin D3 instead of D2, Intervention, Intervention - non daily 13 Feb, 2022
HIV treatment augmented by high-dose vitamin D, daily or weekly – Dec 2021 1267 Intervention, HIV, Intervention - non daily, High-Dose 30 Jan, 2022
Monthly 120,000 IU of Vitamin D while breastfeeding was good – RCT Jan 2022 1779 Intervention, Infant-Child, Intervention - non daily 11 Jan, 2022
Sleep not helped when half got to 35 ng of Vitamin D (may need 60 ng) – RCT Dec 2021 1657 Intervention, Sleep, Intervention - non daily 10 Dec, 2021
Most Diabetics getting 40,000 IU of vitamin D weekly did not get to 30 ng (needed gut-friendly form) - RCT June 2020 2955 Diabetes, Intervention, Intervention - non daily 30 Nov, 2021
Vitamin D restored in teens by doses totalling 300,000 IU – Nov 2014 2939 Loading dose for Vitamin D, Youth, Intervention, Intervention - non daily 29 Oct, 2021
Vitamin D levels in teens restored with 150,000 IU monthly for 3 months (mean 33 ng) – Oct 2021 1043 Youth, Intervention, Intervention - non daily 29 Oct, 2021
Non-Alcoholic Fatty Liver Disease (NAFLD) treated by Vitamin D (20,000 IU weekly after loading dose) – RCT June 2016 7827 Liver, Intervention, Intervention - non daily 05 Oct, 2021
TB not prevented by a small amount of Vitamin D (2,000 IU daily average, Mongolia) – RCT July 2020 636 Tuberculosis, Intervention, Intervention - non daily 26 Sep, 2021
COVID-19 defeated 3x faster by 420,000 IU Vitamin D nanoemulsion – RCT Nov 12, 2020 5971 Loading dose for Vitamin D, Intervention, Virus, Intervention - non daily 21 Sep, 2021
UTI associated with low Vitamin D as well as treated - many studies 148686 Intervention, Inflammation, Intervention - non daily 07 Sep, 2021
Diabetes helped somewhat by weekly 50,000 IU of vitamin D (5 ways to improve) – RCT Aug 2021 1860 Diabetes, Intervention, Intervention - non daily 19 Aug, 2021
Weekly Vitamin D plus daily Magnesium is great (reduced depression in obese women in this case) – July 2021 2771 Depression, Vitamin D and Magnesium, Intervention, Intervention - non daily 13 Aug, 2021
Falls not decreased by 60,000 IU Vitamin D monthly (not a news item) – RCT Aug 2021 1277 Intervention, Falls and Fractures, Intervention - non daily 02 Aug, 2021
COVID-19 mortality reduced 4X (chart looks like 2X) by large, infrequent doses of Vitamin D in France – July 2021 1500 Loading dose for Vitamin D, Intervention, Virus, Intervention - non daily 01 Aug, 2021
Colorectal Cancer treatment aided by omega-3 plus weekly Vitamin D – RCT Sept 2019 2732 Cancer - Colon, Cancer - after diagnosis, Intervention, Vitamin D and Omega-3, Intervention - non daily 25 Jul, 2021
Pain reduced by Vitamin D (60K weekly, then monthly) plus daily Calcium in 3 months – May 2021 2562 Pain - chronic, Vitamin D and Calcium, Intervention, Intervention - non daily 16 Jul, 2021
44 percent of successful RCTs in VitaminDWiki used non-daily dosing - Nov 2020 2667 Loading dose for Vitamin D, Intervention, Intervention - non daily, Better than daily 11 Jul, 2021
Yet another study confirms Depression is treated by weekly Vitamin D (50,000 IU)– RCT Dec 2019 3643 Depression, Intervention, Intervention - non daily, Better than daily 09 Jul, 2021
Cognitive function of adult women improved in 3 months of 50,000 IU weekly Vitamin D – Jan 2019 2525 Intervention, Cognitive, Intervention - non daily 09 Jul, 2021
Asthma and COPD in a few seniors greatly decreased by monthly 100,000 IU Vitamin D – RCT Feb 2021 4314 Seniors, Breathing, Intervention, Intervention - non daily 28 Jun, 2021
Every schizophrenia measure was improved when vitamin D levels were normalized – June 2021 4272 Intervention, Cognitive, Intervention - non daily 17 Jun, 2021
Immune systems helped by 50,000 IU of vitamin D (weekly for 3 months) – May 2021 3225 Immunity, Intervention, Intervention - non daily 03 Jun, 2021
Peripheral diabetic neuropathy helped by weekly 50,000 IU vitamin D – Jan 2019 3326 Diabetes, Intervention, Intervention - non daily 25 May, 2021
54 genes significantly affected by Vitamin D (50,000 IU weekly for 12 weeks) – May 2021 2575 Intervention, Intervention - non daily 12 May, 2021

11 pages in both categories: Intervention - non daily + Obesity

Page Hits Categories Major change
Obese women had larger response to oral v.s. injected Vitamin D – Jan 2024 4 Obesity, Intervention - non daily, Injection 03 Sep, 2024
Response by obese to weekly 50,000 IU of Vitamin D – May 2018 3021 How much Vitamin D, Obesity, Intervention, Intervention - non daily 12 Feb, 2020
20,000 IU of Vitamin D weekly gave many benefits – RCT Aug 2019 3073 Obesity, Intervention, Intervention - non daily, Better than daily 17 Jan, 2020
Obese lost more weight on diet if added 50,000 IU of vitamin D weekly – many RCTs 11334 Obesity, Intervention, Top news, Women, Intervention - non daily 25 Dec, 2019
Obese lost 3X more weight with Vitamin D - July 2018 2693 Obesity, Intervention, Intervention - non daily 09 Sep, 2019
Obese responded to weekly vitamin D better than non-obese – RCT March 2018 5444 Obesity, Intervention, Top news, Intervention - non daily 22 Aug, 2019
Severely Obese not helped much by 50,000 IU of vitamin D weekly for 8 weeks – RCT June 2019 1255 Obesity, Intervention, Intervention - non daily 21 Aug, 2019
Waist size reduced 3 cm by Vitamin D in those with Metabolic Syndrome – Jan 2017 6973 Diabetes, Obesity, Loading dose for Vitamin D, Metabolic Syndrome, Intervention, Intervention - non daily 18 Aug, 2019
Daily, monthly Vitamin D had similar great benefits, more than 6 months needed – RCT Dec 2018 6036 Obesity, Intervention, Top news, Intervention - non daily 09 Feb, 2019
5,000 IU daily or 50,000 IU Vitamin D weekly repleted many dark skinned adolescents – RCT Dec 2015 6369 Skin - Dark, Obesity, Youth, Intervention, Vit D Binding Protein, Intervention - non daily 06 Aug, 2016
50,000 IU vitamin D 1-3 times per week helped obese patients in rehab. – May 2013 8504 Obesity, Intervention, Intervention - non daily 01 Aug, 2013

22 pages in both categories: Intervention - non daily + Better than daily

Page Hits Categories Major change
Children had a better response to Vitamin D given every 2 weeks than daily – RCT Aug 2024 2 Intervention, Infant-Child, Intervention - non daily, Better than daily 15 Aug, 2024
Monthly vitamin D dosing better for children than daily (again) - Oct 2023 670 Intervention, Infant-Child, Intervention - non daily, Better than daily 15 Nov, 2023
Vitamin D response independent of dosing interval – meta-analysis July 2023 692 Meta-analysis of Vitamin D, Intervention, Intervention - non daily, Better than daily 03 Aug, 2023
Take vitamin D3 daily, weekly, or bi-weekly 53986 How much Vitamin D, Intervention - non daily, Better than daily 16 Jul, 2023
Depression is especially reduced by large intermittent doses of vitamin D – meta-analysis – April 2023 1684 Depression, Intervention - non daily, Better than daily 01 Feb, 2023
Can get 50,000 IU Vitamin D anywhere on the globe 4516 Loading dose for Vitamin D, Top news, Optimum, Consensus, Increased use of D, Intervention - non daily, Better than daily, High-Dose 21 Dec, 2022
Vitamin D treatment of Chronic Kidney Disease: monthly better than daily – RCT May 2022 2139 Skin - Dark, Kidney, Intervention, Zinc, Intervention - non daily, Calcidiol, Better than daily 10 Jun, 2022
44 percent of successful RCTs in VitaminDWiki used non-daily dosing - Nov 2020 2667 Loading dose for Vitamin D, Intervention, Intervention - non daily, Better than daily 11 Jul, 2021
Yet another study confirms Depression is treated by weekly Vitamin D (50,000 IU)– RCT Dec 2019 3643 Depression, Intervention, Intervention - non daily, Better than daily 09 Jul, 2021
50,000 IU of Vitamin D once every 2 weeks achieved 40 ng in 3 months – RCT March 2021 3654 Intervention, Optimum, Intervention - non daily, Better than daily 24 Apr, 2021
Diabetic inflammation reduced by Vitamin D (30,000 IU weekly) – RCT July 2020 2751 Diabetes, Intervention, Inflammation, Intervention - non daily, Better than daily 09 Jul, 2020
IBS diarrhea treated by weekly 50,000 IU of Vitamin D – RCT March 2020 2744 Gut, Intervention - non daily, Better than daily 25 Mar, 2020
20,000 IU of Vitamin D weekly gave many benefits – RCT Aug 2019 3073 Obesity, Intervention, Intervention - non daily, Better than daily 17 Jan, 2020
Weekly Vitamin D to mother after birth much better than daily - RCT Aug 2018 4435 Pregnancy, Intervention - non daily, Better than daily 11 Mar, 2019
Vitamin D dosing - weekly may be better than daily – video Aug 2018 10028 Books, videos on Vitamin D, Intervention - non daily, Better than daily 02 Sep, 2018
Monthly 100,000 IU of vitamin D is safe (and may be better than daily) – RCT Aug 2018 15405 Intervention, Intervention - non daily, Better than daily 14 Aug, 2018
Vitamin D given weekly better than daily (Nursing home, 5,600 IU weekly) – Aug 2018 5068 Intervention, Intervention - non daily, Better than daily 07 Aug, 2018
Vitamin D every 25 days may be BETTER than daily – RCT May 2018 11788 Intervention, Top news, Intervention - non daily, Better than daily 24 May, 2018
Monthly vitamin D dosing had higher response than 3 per month – RCT Jan 2018 4201 Intervention, Predict Vitamin D, Intervention - non daily, Better than daily 28 Jan, 2018
Monthly vitamin D dosing is better than daily dosing for children and elderly (more likely to be taken) – June 2017 20221 Intervention - non daily, Better than daily 25 Aug, 2017
Optimal vitamin D supplementation strategies (D3 - weekly or monthly) – Feb 2017 4533 How, when to take Vit. D, Intervention, Intervention - non daily, Better than daily 02 Mar, 2017
Vitamin D – monthly dosing was better than daily with Calcium – RCT Dec 2015 9385 How, when to take Vit. D, Intervention, Intervention - non daily, Better than daily 17 Sep, 2016

9 pages in both categories: Intervention - non daily + Falls and Fractures

Page Hits Categories Major change
Muscles improved in women with 50,000 IU vitamin D weekly (8 weeks) plus daily Magnesium – RCT Sept 2020 824 Vitamin D and Magnesium, Intervention, Falls and Fractures, Women, Intervention - non daily 16 Sep, 2023
Bone fractures of children not reduced if given little vitamin D, no Calcium etc. – RCT May 2023 783 Bone - Health, Intervention, Infant-Child, Falls and Fractures, Intervention - non daily 27 Aug, 2023
Falls not decreased by 60,000 IU Vitamin D monthly (not a news item) – RCT Aug 2021 1277 Intervention, Falls and Fractures, Intervention - non daily 02 Aug, 2021
Less bone loss if take 100,000 IU vitamin D monthly – RCT Nov 2017 3982 Bone - Health, Intervention, Falls and Fractures, Intervention - non daily 07 Jul, 2019
Grip strength following wrist fracture increased by 50,000 IU Vitamin D monthly – May 2019 2719 Intervention, Falls and Fractures, Intervention - non daily 09 May, 2019
Probably Fractures of the Tibia can be healed with 100,000 IU of vitamin D weekly – RCT 2023 3498 Intervention, Falls and Fractures, Intervention - non daily 23 Oct, 2017
Perhaps fewer bone non-unions with 100,000 IU weekly of vitamin D – RCT 2018 2269 Intervention, Falls and Fractures, Intervention - non daily 23 Oct, 2017
Falls cut in half by 100,000 IU vitamin D monthly - RCT 2016 8704 Intervention, Falls and Fractures, Intervention - non daily 17 Sep, 2016
2X fewer Senior falls in group getting 100,000 IU vitamin D monthly via Meals-on-Wheels – RCT Aug 2015 11610 Intervention, Falls and Fractures, Fortification with Vitamin D, Intervention - non daily 18 Aug, 2015

17 pages in both categories: Intervention - non daily + Pregnancy

Page Hits Categories Major change
Gestational Diabetes reduced with 50,000 IU of vitamin D every 3 weeks and daily Calcium – RCT June 2014 172254 Pregnancy, Diabetes, Intervention, Top news, Intervention - non daily 17 Jul, 2023
50,000 IU of Vitamin D every 2 weeks reduced gestational diabetes – RCT Feb 2015 3197 Pregnancy, Intervention, Intervention - non daily 12 Jul, 2023
300,000 IU of Vitamin D is not enough during pregnancy – RCT May 2018 3855 Pregnancy, Intervention, Intervention - non daily 25 Jun, 2019
Weekly Vitamin D to mother after birth much better than daily - RCT Aug 2018 4435 Pregnancy, Intervention - non daily, Better than daily 11 Mar, 2019
Pregnancies helped a lot by Vitamin D (injection then 50,000 IU monthly) – RCT May 2018 3955 Pregnancy, Loading dose for Vitamin D, Intervention, Intervention - non daily, Injection 28 May, 2018
35,000 IU vitamin D weekly during 3rd quarter pregnancy – RCT March 2013 11447 Pregnancy, Intervention, Intervention - non daily 16 Feb, 2018
Monthly 120,000 IU Vitamin D plus daily Calcium was great during pregnancies – RCT Sept 2017 3823 Pregnancy, Intervention, Intervention - non daily 23 Sep, 2017
Breast milk resulted in 20 ng of vitamin D for infant if mother had taken 5,000 IU daily – RCT Dec 2013 24458 Pregnancy, Intervention, Infant-Child, Intervention - non daily 12 Sep, 2017
Preeclampsia recurrence reduced 2 X by 50,000 IU of vitamin D every two weeks – RCT July 2017 4505 Pregnancy, Middle East, Intervention, Hypertension, Intervention - non daily 17 Jul, 2017
50,000 IU of vitamin D for 8 weeks of pregnancy raised most above 30 nanograms - RCT Jan 2017 4978 Pregnancy, Intervention, Intervention - non daily 28 Dec, 2016
Gestational Diabetes treated with 50,000 IU every two weeks – RCT Sept 2016 9204 Pregnancy, Diabetes, Intervention, Intervention - non daily 03 Sep, 2016
Pregnancy – adding 35,000 IU Vitamin D weekly was nice, but not enough – RCT April 2016 4621 Pregnancy, Intervention, Intervention - non daily 23 Jul, 2016
Insulin resistance during pregnancy improved with 50,000 IU of vitamin D every 2 weeks – RCT April 2013 5003 Pregnancy, Diabetes, Intervention, Intervention - non daily 23 May, 2016
Prenatal Vitamin D (35,000 weekly, 3rd trimester) resulted in 1 cm taller infants at age 1 year – RCT Aug 2013 3807 Pregnancy, Intervention, Intervention - non daily 30 Apr, 2016
Preeclampsia reduced by Vitamin D (50,000 IU bi-weekly) and Calcium – Oct 2015 3817 Pregnancy, Intervention, Hypertension, Intervention - non daily 15 Oct, 2015
No multiple sclerosis relapses during pregnancy if 50,000 IU of Vitamin D weekly – RCT April 2015 8802 Pregnancy, Multiple Sclerosis, Intervention, Intervention - non daily 21 Jun, 2015
Near the end of pregnancy 50,000 IU vitamin D weekly was great – RCT April 2013 10910 Pregnancy, Intervention, Top news, Intervention - non daily 08 Jun, 2015

13 pages in both categories: Intervention - non daily + Depression

Page Hits Categories Major change
Smoking depression, etc. reduced by Vitamin D (bi-weekly, 50,000 IU) - RCT Dec 2021 1 Breathing, Depression, Cancer - Lung, Intervention, Intervention - non daily 19 Jan, 2025
Depression cost-effectively reduced by 50,000 IU of Vitamin D monthly (Iranian teens) – July 2023 9 Depression, Cost savings with Vitamin D, Middle East, Youth, Intervention, Intervention - non daily 28 Nov, 2024
Depression is especially reduced by large intermittent doses of vitamin D – meta-analysis – April 2023 1684 Depression, Intervention - non daily, Better than daily 01 Feb, 2023
Anxiety and Depression decreased in senior prediabetics with weekly 25,000 IU of Vitamin D – RCT Sept 2022 396 Depression, Intervention, Intervention - non daily 22 Dec, 2022
Depression decreased by Vitamin D (12th study in VitaminDWiki) – RCT Nov 2022 2391 Depression, Intervention, Intervention - non daily 12 Nov, 2022
Weekly Vitamin D plus daily Magnesium is great (reduced depression in obese women in this case) – July 2021 2771 Depression, Vitamin D and Magnesium, Intervention, Intervention - non daily 13 Aug, 2021
Yet another study confirms Depression is treated by weekly Vitamin D (50,000 IU)– RCT Dec 2019 3643 Depression, Intervention, Intervention - non daily, Better than daily 09 Jul, 2021
Depression decreased after vitamin D (50,000 IU weekly to elderly in the case) – RCT Oct 2019 4532 Depression, Intervention, Intervention - non daily 17 Oct, 2019
Vitamin D treatment of diabetes (50,000 IU every 2 weeks) augmented by probiotic – RCT June 2018 6026 Diabetes, Depression, Intervention, Top news, Antibiotics, probiotics, Intervention - non daily 12 Jan, 2019
Vitamin D depression RCT canceled: too many were taking Vitamin D supplements, etc. Feb 2018 6081 Depression, Intervention, Intervention - non daily 28 Nov, 2017
Depression in adolescent girls reduced somewhat by 50,000 IU weekly for 9 weeks – July 2017 5530 Depression, Intervention, Intervention - non daily 01 Sep, 2017
50,000 IU Vitamin D weekly Improves Mood, Lowers Blood Pressure in Type 2 Diabetics – Oct 2013 6926 Diabetes, Depression, Intervention, Intervention - non daily 20 Jul, 2017
40,000 IU vitamin D weekly reduced depression in many obese subjects – RCT 2008 4406 Depression, Intervention, Intervention - non daily 09 Nov, 2013

4 pages in both categories: Intervention - non daily + Liver

4 pages in both categories: Intervention - non daily + Middle East

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

11 pages in both categories: Intervention - non daily + Women

Page Hits Categories Major change
PMS reduced by 50,000 IU every two weeks - RCT Jan 2024 268 Intervention, Women, Intervention - non daily 15 Jan, 2024
Muscles improved in women with 50,000 IU vitamin D weekly (8 weeks) plus daily Magnesium – RCT Sept 2020 824 Vitamin D and Magnesium, Intervention, Falls and Fractures, Women, Intervention - non daily 16 Sep, 2023
Immune systems of overweight black women improved by monthly 60,000 IU Vitamin D – RCT Oct 2022 824 Skin - Dark, Immunity, Intervention, Women, Intervention - non daily 14 Oct, 2022
Endometriosis treated by Vitamin D (50,000 IU bi-weekly) – RCT Jan 2021 2139 Intervention, Women, Intervention - non daily 30 Jan, 2021
Obese lost more weight on diet if added 50,000 IU of vitamin D weekly – many RCTs 11334 Obesity, Intervention, Top news, Women, Intervention - non daily 25 Dec, 2019
PMS again significantly reduced by 50,000 IU of vitamin D (This time, every two weeks) – RCT Oct 2019 3704 Intervention, Women, Intervention - non daily 19 Oct, 2019
Urgency Urinary Incontinence in senior black women decreased 40 percent by weekly 50,000 IU vitamin D – RCT Dec 2018 2934 Skin - Dark, Intervention, Women, Intervention - non daily 07 Jul, 2019
PMS in teens reduced 3X by 50,000 IU vitamin D weekly – Jan 2018 5146 Intervention, Women, Intervention - non daily 23 Mar, 2019
450,000 IU of vitamin D over 9 weeks given to 100,000 teenage Iranian girls helped their livers – Feb 2019 3744 Liver, Middle East, Youth, Intervention, Women, Intervention - non daily 14 Feb, 2019
Chinese women in tropics needed 50,000 IU of Vitamin D monthly to keep above 30 ng – RCT May 2017 7370 How much Vitamin D, Intervention, Women, Orient, Intervention - non daily 14 Jul, 2017
Vitamin D – 50,000 IU monthly is enough if near the equator and have normal weight – May 2017 3008 Women, Intervention - non daily 25 Apr, 2017

5 pages in both categories: Intervention - non daily + Skin - Dark

11 pages in both categories: Intervention - non daily + How much Vitamin D

Page Hits Categories Major change
Take vitamin D3 daily, weekly, or bi-weekly 53986 How much Vitamin D, Intervention - non daily, Better than daily 16 Jul, 2023
One pill every two weeks gives you all the vitamin D most adults need How much Vitamin D, About D - introduction, Top news, Intervention - non daily 11 Jul, 2023
50,000 IU Vitamin D weekly was the most popular for Breast Cancer - May 2020 3586 How much Vitamin D, Predict Vitamin D, Intervention - non daily 30 Aug, 2021
Response by obese to weekly 50,000 IU of Vitamin D – May 2018 3021 How much Vitamin D, Obesity, Intervention, Intervention - non daily 12 Feb, 2020
7100 IU (50000 weekly) got most women to 30 ng of vitamin D - Aug 2012 18241 How much Vitamin D, Intervention, Intervention - non daily 20 Jul, 2017
Chinese women in tropics needed 50,000 IU of Vitamin D monthly to keep above 30 ng – RCT May 2017 7370 How much Vitamin D, Intervention, Women, Orient, Intervention - non daily 14 Jul, 2017
50,000 IU of vitamin D every two weeks – Jordan conclusion - RCT July 2017 7561 How much Vitamin D, Intervention, Consensus, Intervention - non daily 08 Jul, 2017
Many benefits of 50,000 IU vitamin D every two weeks (methadone treatment) – RCT June 2017 6244 How much Vitamin D, Intervention, Intervention - non daily 21 Jun, 2017
Children getting 60,000 IU monthly got to vitamin D level of 33 ng – Sept 2015 7540 How much Vitamin D, Intervention, Infant-Child, Intervention - non daily 10 Sep, 2015
Response and adverse effects of 20,000 and 30,000 IU Vitamin D weekly - Feb 2015 23889 How much Vitamin D, Toxicity of Vitamin D, Intervention, Intervention - non daily 09 Mar, 2015
Muscle strength in youth increased with 60,000 IU vitamin D per week and 1 g Calcium – April 2010 25952 How much Vitamin D, Sports and Vitamin D, Vitamin D and Calcium, Youth, Intervention, Intervention - non daily 10 Aug, 2013

23 pages in both categories: Intervention - non daily + Top news

Page Hits Categories Major change
Single 600,000 IU dose of nanoemulsion Vitamin D is safe and effective to fight COVID, even if delay until enter ICU – RCT May 2024 1098 Loading dose for Vitamin D, Intervention, Top news, Virus, Intervention - non daily 01 Jun, 2024
Vitamin D loading dose of 30,000 IU twice a week is safe and effective – RCT July 2023 298 Loading dose for Vitamin D, Intervention, Top news, Intervention - non daily 22 Dec, 2023
Venous ulcers healed 4X faster with weekly 50,000 IU vitamin D – RCT Oct 2012 1069 Intervention, Top news, Intervention - non daily 08 Sep, 2023
Gestational Diabetes reduced with 50,000 IU of vitamin D every 3 weeks and daily Calcium – RCT June 2014 172254 Pregnancy, Diabetes, Intervention, Top news, Intervention - non daily 17 Jul, 2023
One pill every two weeks gives you all the vitamin D most adults need How much Vitamin D, About D - introduction, Top news, Intervention - non daily 11 Jul, 2023
Can get 50,000 IU Vitamin D anywhere on the globe 4516 Loading dose for Vitamin D, Top news, Optimum, Consensus, Increased use of D, Intervention - non daily, Better than daily, High-Dose 21 Dec, 2022
Obese lost more weight on diet if added 50,000 IU of vitamin D weekly – many RCTs 11334 Obesity, Intervention, Top news, Women, Intervention - non daily 25 Dec, 2019
Fibromyalgia treated with Vitamin D (50,000 IU weekly for 3 months) – 2016, 2017, 2018, 2019 9330 Pain - chronic, Intervention, Top news, Intervention - non daily, Quality of Life 19 Oct, 2019
Obese responded to weekly vitamin D better than non-obese – RCT March 2018 5444 Obesity, Intervention, Top news, Intervention - non daily 22 Aug, 2019
Lower back pain treated by 600,000 IU of Vitamin D – RCT June 2019 5676 Intervention, Top news, Back pain, Intervention - non daily 28 Jun, 2019
Prediabetes both prevented and treated by monthly Vitamin D, etc. 4790 Diabetes, Intervention, Top news, Intervention - non daily 08 Jun, 2019
Daily, monthly Vitamin D had similar great benefits, more than 6 months needed – RCT Dec 2018 6036 Obesity, Intervention, Top news, Intervention - non daily 09 Feb, 2019
Vitamin D treatment of diabetes (50,000 IU every 2 weeks) augmented by probiotic – RCT June 2018 6026 Diabetes, Depression, Intervention, Top news, Antibiotics, probiotics, Intervention - non daily 12 Jan, 2019
Multiple Sclerosis treated by 50,000 IU Vitamin D bi-weekly plus Omega-3 – RCT July 2018 2883 Multiple Sclerosis, Intervention, Top news, Vitamin D and Omega-3, Intervention - non daily 06 Jul, 2018
Fibromyalgia pain substantially reduced by weekly Vitamin D (50,000 IU) – June 2018 6956 Pain - chronic, Intervention, Top news, Intervention - non daily 23 Jun, 2018
Vitamin D every 25 days may be BETTER than daily – RCT May 2018 11788 Intervention, Top news, Intervention - non daily, Better than daily 24 May, 2018
HbA1c levels (Diabetes) reduced by monthly 50,000 IU of vitamin D – Dec 2017 14634 Diabetes, Intervention, Top news, Intervention - non daily 01 Mar, 2018
Juvenile Lupus fatigue reduced by vitamin D ( 50,000 IU weekly for 6 months) – RCT May 2015 5965 Lupus, Intervention, Top news, Intervention - non daily 24 Nov, 2016
7100 IU (50000 weekly) restored vitamin D levels for those with Chronic Kidney Disease – July 2012 5609 Kidney, Intervention, Top news, Intervention - non daily 21 Sep, 2016
Near the end of pregnancy 50,000 IU vitamin D weekly was great – RCT April 2013 10910 Pregnancy, Intervention, Top news, Intervention - non daily 08 Jun, 2015
7 improvements in lives of veterans with chronic pain with 50,000 IU vitamin D weekly – June 2012 18387 Pain - chronic, Intervention, Top news, Sleep, Intervention - non daily 20 Aug, 2014
Vitamin D update – 40-60 ng ideal, 50K biweekly maintenance – Jan 2014 11956 Overview for doctors, Intervention, Top news, Intervention - non daily 24 Mar, 2014
50,000 IU of vitamin D monthly in winter gets most above 20 ng – RCT Nov 2013 8911 Intervention, Top news, Intervention - non daily 21 Dec, 2013

8 pages in both categories: Intervention - non daily + Cardiovascular

23 pages in both categories: Intervention - non daily + Diabetes

Page Hits Categories Major change
Type 1 Diabetic inflammation reduced by 50 ng of Vitamin D - Dec 2024 8 Diabetes, Intervention, Intervention - non daily 21 Dec, 2024
Gestational Diabetes reduced with 50,000 IU of vitamin D every 3 weeks and daily Calcium – RCT June 2014 172254 Pregnancy, Diabetes, Intervention, Top news, Intervention - non daily 17 Jul, 2023
Diabetes prevented by 50,000 IU vitamin D monthly (Iran) – Jan 2022 2489 Diabetes, Cost savings with Vitamin D, Middle East, Intervention, Intervention - non daily 03 Nov, 2022
Diabetic inflammation synergistically decreased by Vitamin D and exercise – RCT June 2022 2031 Sports and Vitamin D, Diabetes, Intervention, Intervention - non daily 09 Oct, 2022
100,000 IU of Vitamin D3 monthly for 4 months to diabetics (D2 bombed) – RCT Dec 2019 2016 Diabetes, Vitamin D3 instead of D2, Intervention, Intervention - non daily 13 Feb, 2022
Most Diabetics getting 40,000 IU of vitamin D weekly did not get to 30 ng (needed gut-friendly form) - RCT June 2020 2955 Diabetes, Intervention, Intervention - non daily 30 Nov, 2021
Diabetes helped somewhat by weekly 50,000 IU of vitamin D (5 ways to improve) – RCT Aug 2021 1860 Diabetes, Intervention, Intervention - non daily 19 Aug, 2021
Peripheral diabetic neuropathy helped by weekly 50,000 IU vitamin D – Jan 2019 3326 Diabetes, Intervention, Intervention - non daily 25 May, 2021
Prediabetes reduced by weekly 60,000 IU of Vitamin D – RCT Jan 2021 3330 Diabetes, Intervention, Intervention - non daily 23 Feb, 2021
Diabetic inflammation reduced by Vitamin D (30,000 IU weekly) – RCT July 2020 2751 Diabetes, Intervention, Inflammation, Intervention - non daily, Better than daily 09 Jul, 2020
Waist size reduced 3 cm by Vitamin D in those with Metabolic Syndrome – Jan 2017 6973 Diabetes, Obesity, Loading dose for Vitamin D, Metabolic Syndrome, Intervention, Intervention - non daily 18 Aug, 2019
Type 2 Diabetes inflammation reduced by 50,000 IU of Vitamin D bi-weekly and resistance training – RCT – June 2019 3468 Diabetes, Intervention, Inflammation, Intervention - non daily 01 Jul, 2019
Prediabetes both prevented and treated by monthly Vitamin D, etc. 4790 Diabetes, Intervention, Top news, Intervention - non daily 08 Jun, 2019
Vitamin D treatment of diabetes (50,000 IU every 2 weeks) augmented by probiotic – RCT June 2018 6026 Diabetes, Depression, Intervention, Top news, Antibiotics, probiotics, Intervention - non daily 12 Jan, 2019
Diabetic nephropathy (Kidney) treated by 50,000 IU of vitamin D weekly – RCT Jan 2019 5430 Kidney, Diabetes, Intervention, Intervention - non daily 17 Nov, 2018
HbA1c levels (Diabetes) reduced by monthly 50,000 IU of vitamin D – Dec 2017 14634 Diabetes, Intervention, Top news, Intervention - non daily 01 Mar, 2018
Type 1 diabetes helped with 50,000 IU of vitamin D every two weeks – Nov 2014 5706 Diabetes, Intervention, Infant-Child, Intervention - non daily 20 Jul, 2017
50,000 IU Vitamin D weekly Improves Mood, Lowers Blood Pressure in Type 2 Diabetics – Oct 2013 6926 Diabetes, Depression, Intervention, Intervention - non daily 20 Jul, 2017
Prediabetes reduced by monthly 60,000 IU of vitamin D – RCT May 2015 9239 Diabetes, Intervention, Intervention - non daily 15 Mar, 2017
Gestational Diabetes treated with 50,000 IU every two weeks – RCT Sept 2016 9204 Pregnancy, Diabetes, Intervention, Intervention - non daily 03 Sep, 2016
Insulin resistance during pregnancy improved with 50,000 IU of vitamin D every 2 weeks – RCT April 2013 5003 Pregnancy, Diabetes, Intervention, Intervention - non daily 23 May, 2016
Pain of Diabetic Neuropathy reduced with weekly 50,000 IU vitamin D– CT Feb 2015 12042 Diabetes, Pain - chronic, Intervention, Intervention - non daily 22 Oct, 2015
Blood pressure in diabetics reduced by 12 weekly doses of 50,000 IU vitamin D – RCT Jan 2014 18740 Diabetes, Intervention, Hypertension, Intervention - non daily 10 Apr, 2014

6 pages in both categories: Intervention - non daily + Sports and Vitamin D

10 pages in both categories: Intervention - non daily + Multiple Sclerosis

Page Hits Categories Major change
CIS (MS) reduced 36% by two capsules of 50,000 IU of Vitamin D taken biweekly – RCT March 2025 Multiple Sclerosis, Intervention, Intervention - non daily, High-Dose 10 Mar, 2025
Clinically isolated syndrome (a precursor to MS) reduced 40% by bi-weekly 100,000 IU of vitamin D – Sept 2024 Multiple Sclerosis, Intervention - non daily 23 Sep, 2024
Clinically isolated syndrome (a precursor to MS) reduced 34% by bi-weekly 100,000 IU of vitamin D – Sept 2024 10 Multiple Sclerosis, Intervention - non daily 23 Sep, 2024
Multiple Sclerosis treated equally by UVB and weekly 50,000 IU of Vitamin D – RCT July 2023 1143 UV and Vitamin D, Multiple Sclerosis, Intervention, Intervention - non daily 18 Jun, 2023
Multiple Sclerosis relapses cut in half by 100,000 IU of Vitamin D every 2 weeks– RCT 2019 4787 Multiple Sclerosis, Intervention - non daily 19 Jul, 2020
53 Multiple Sclerosis patients somewhat helped by 10,000 IU of vitamin D (vs, 30,000 virtually cured by 10X as much) – Jan 2020 3759 Multiple Sclerosis, Intervention, Intervention - non daily 25 Jan, 2020
Multiple Sclerosis treated by 50,000 IU Vitamin D bi-weekly plus Omega-3 – RCT July 2018 2883 Multiple Sclerosis, Intervention, Top news, Vitamin D and Omega-3, Intervention - non daily 06 Jul, 2018
Multiple sclerosis helped some by 10,000 IU of vitamin D daily avg. for 3 months – RCT Sept 2016 3150 Multiple Sclerosis, Intervention, Intervention - non daily, Quality of Life 21 Jan, 2017
No multiple sclerosis relapses during pregnancy if 50,000 IU of Vitamin D weekly – RCT April 2015 8802 Pregnancy, Multiple Sclerosis, Intervention, Intervention - non daily 21 Jun, 2015
Optic neuritis progession into Multiple Sclerosis reduced 68 percent by 50,000 IU of vitamin D weekly 10281 Multiple Sclerosis, Intervention, Intervention - non daily 08 May, 2014

9 pages in both categories: Intervention - non daily + Virus

Page Hits Categories Major change
Viral infections reduced 40% by monthly 100,000 IU Vitamin D – RCT review Aug 2024 2 Immunity, Intervention, Virus, Intervention - non daily, High-Dose 13 Aug, 2024
Long-COVID fatigue, anxiety, and cognition treated by 60,000 IU of vitamin D weekly – RCT July 2024 1 Intervention, Virus, Intervention - non daily 29 Jul, 2024
Single 600,000 IU dose of nanoemulsion Vitamin D is safe and effective to fight COVID, even if delay until enter ICU – RCT May 2024 1098 Loading dose for Vitamin D, Intervention, Top news, Virus, Intervention - non daily 01 Jun, 2024
COVID deaths cut in half by a single dose of 600,000 IU of Vitamin D - RCT Jan 2024 326 Intervention, Virus, Intervention - non daily 31 Jan, 2024
Influenza vaccine antibodies not change with Vitamin D – 21 ng or 44 ng – RCT Feb 2019 2390 Intervention, Virus, Intervention - non daily 22 Mar, 2022
COVID-19 defeated 3x faster by 420,000 IU Vitamin D nanoemulsion – RCT Nov 12, 2020 5971 Loading dose for Vitamin D, Intervention, Virus, Intervention - non daily 21 Sep, 2021
COVID-19 mortality reduced 4X (chart looks like 2X) by large, infrequent doses of Vitamin D in France – July 2021 1500 Loading dose for Vitamin D, Intervention, Virus, Intervention - non daily 01 Aug, 2021
5X less likely to enter ICU with COVID-19 if get Calcifediol (semi-activated vitamin D) - RCT Feb 19, 2021 8999 Intervention, Virus, Intervention - non daily, Calcidiol 13 Feb, 2021
Chikungunya virus arthritis pain reduced by weekly 60,000 IU vitamin D – Sept 2016 6691 Intervention, Virus, Intervention - non daily 29 Sep, 2016

4 pages in both categories: Intervention - non daily + Sleep

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

5 pages in both categories: Intervention - non daily + Seniors

13 pages in both categories: Intervention - non daily + Breathing

Page Hits Categories Major change
Smoking depression, etc. reduced by Vitamin D (bi-weekly, 50,000 IU) - RCT Dec 2021 1 Breathing, Depression, Cancer - Lung, Intervention, Intervention - non daily 19 Jan, 2025
COPD fought by Vitamin D - many studies 16340 Breathing, Intervention, Intervention - non daily 23 Oct, 2023
Acute respiratory tract infections not reduced by Vitamin D if already have a good level – Jan 2021 378 Seniors, Breathing, Intervention, Intervention - non daily 30 Sep, 2023
Chronic tonsillitis virtually eliminated in children by Vitamin D (50,000 IU weekly) – RCT May 2023 1561 Breathing, Intervention, Infant-Child, Intervention - non daily 20 May, 2023
Asthma and COPD in a few seniors greatly decreased by monthly 100,000 IU Vitamin D – RCT Feb 2021 4314 Seniors, Breathing, Intervention, Intervention - non daily 28 Jun, 2021
Childhood colds reduced 25 percent by weekly Vitamin D – RCT Jan 2019 3496 Breathing, Intervention, Intervention - non daily 19 Jul, 2020
COPD trial to use 80,000 IU of vitamin D weekly – RCT 2021 3046 Breathing, Intervention, Intervention - non daily 19 Mar, 2020
Those with Asthma or COPD had half the response to Vitamin D – March 2020 3083 Breathing, Intervention, Antibiotics, probiotics, Intervention - non daily 19 Mar, 2020
Hay Fever treated by Vitamin D (50,000 IU weekly) – RCT July 2019 5268 Breathing, Autoimmune, Intervention, Intervention - non daily 02 Aug, 2019
All asthma problems reduced after 1 year of Vitamin D – Nov 2017 5240 Breathing, Intervention, Intervention - non daily 10 Jul, 2018
Vitamin D loading dose then weekly 50,000 IU not help (COPD) if very deficient – Oct 2015 1535 Breathing, Intervention, Intervention - non daily 16 Oct, 2015
Respiratory infections (RTI) cut in half by 20,000 IU weekly vitamin D if initially deficient – RCT March 2015 6203 Breathing, Immunity, Intervention, Intervention - non daily 18 Apr, 2015
Asthma reduced by weekly 50,000 IU of vitamin D – RCT Aug 2014 Breathing, Intervention, Intervention - non daily 03 Aug, 2014

12 pages in both categories: Intervention - non daily + Injection

Page Hits Categories Major change
Rickets: Vitamin D safe and effective - ten doses of 60,000 IU or 1 injection of 600,000 IU – Feb 2025 7 Rickets, Intervention, Intervention - non daily, Injection 31 Jan, 2025
Obese women had larger response to oral v.s. injected Vitamin D – Jan 2024 4 Obesity, Intervention - non daily, Injection 03 Sep, 2024
Fewer children died of pneumonia after 100,000 IU Vitamin D injection – RCT March 2021 1967 Immunity, Intervention - non daily, Injection 23 Oct, 2022
Ischaemic stroke – Vitamin D doubled survival (Injection followed by monthly 60,000 IU) – RCT Aug 2016 1976 Intervention, Stroke, Intervention - non daily, Injection 05 Mar, 2021
Weekly oral Vitamin D recommended before surgery (Bariatric in this case) – RCT June 2019 2314 Intervention, Intervention - non daily, Injection 19 Jul, 2020
Breast Cancer chemo reduces Bone Mineral Density, injecting Vitamin D increases it – Sept 2019 4110 Cancer - Breast, Cancer - after diagnosis, Intervention, Intervention - non daily, Injection 07 Sep, 2019
Improved recovery from ischemic stroke with Vitamin D (300,000 IU injection) – RCT June 2018 4282 Intervention, Stroke, Intervention - non daily, Injection 29 Jun, 2018
Pregnancies helped a lot by Vitamin D (injection then 50,000 IU monthly) – RCT May 2018 3955 Pregnancy, Loading dose for Vitamin D, Intervention, Intervention - non daily, Injection 28 May, 2018
Autism treated by Vitamin D (monthly injection of 150,000 IU) – June 2017 5748 Autism, Intervention, Intervention - non daily, Injection 06 Mar, 2018
Ventilator-associated pneumonia death rate cut in half by Vitamin D injection (300,000 IU) – RCT July 2017 5709 Mortality and D, Trauma and surgery, Intervention, Intervention - non daily, Injection 06 Dec, 2017
Angina dramatically reduced by injections of vitamin D twice a month (300,000 IU) – Jan 2015 8975 Cardiovascular, Pain - chronic, Intervention, Intervention - non daily, Injection 05 Apr, 2017
Rickets prevented by single injection of vitamin D or weekly supplementation – RCT Jan 2014 5059 Rickets, Intervention, Intervention - non daily, Injection 24 Jan, 2014

7 pages in both categories: Intervention - non daily + Immunity

4 pages in both categories: Intervention - non daily + Antibiotics, probiotics

17 pages in both categories: Intervention - non daily + Infant-Child

Page Hits Categories Major change
Children had a better response to Vitamin D given every 2 weeks than daily – RCT Aug 2024 2 Intervention, Infant-Child, Intervention - non daily, Better than daily 15 Aug, 2024
Monthly vitamin D dosing better for children than daily (again) - Oct 2023 670 Intervention, Infant-Child, Intervention - non daily, Better than daily 15 Nov, 2023
Bone fractures of children not reduced if given little vitamin D, no Calcium etc. – RCT May 2023 783 Bone - Health, Intervention, Infant-Child, Falls and Fractures, Intervention - non daily 27 Aug, 2023
Chronic tonsillitis virtually eliminated in children by Vitamin D (50,000 IU weekly) – RCT May 2023 1561 Breathing, Intervention, Infant-Child, Intervention - non daily 20 May, 2023
Response to infant 2,000 IU Vitamin D daily was in 194 ng, monthly dosing was 20% less – RCT May 2023 760 Intervention, Infant-Child, Intervention - non daily 17 May, 2023
Monthly 120,000 IU of Vitamin D while breastfeeding was good – RCT Jan 2022 1779 Intervention, Infant-Child, Intervention - non daily 11 Jan, 2022
Vitamin D for infants – 100,000 IU monthly is better than 400 IU daily – RCT Oct 2020 2734 Intervention, Infant-Child, Intervention - non daily 10 Jan, 2021
Vitamin D levels in children optimized with six Vitamin D biscuits – RCT Nov 2018 1191 Loading dose for Vitamin D, Intervention, Infant-Child, Intervention - non daily 01 Oct, 2019
Growing pains reduced 60 percent by monthly Vitamin D – March 2014 12288 Pain - chronic, Intervention, Infant-Child, Intervention - non daily 19 May, 2019
Attention-Deficit Hyperactivity Disorder treated by weekly 50,000 IU of vitamin D – RCT Nov 2018 3328 Intervention, Infant-Child, Intervention - non daily, ADHD 21 Nov, 2018
Mother got 100,000 IU of vitamin D monthly, breastfeeding infant got a little – RCT Aug 2016 4475 Intervention, Infant-Child, Intervention - non daily 13 Sep, 2017
Breast milk resulted in 20 ng of vitamin D for infant if mother had taken 5,000 IU daily – RCT Dec 2013 24458 Pregnancy, Intervention, Infant-Child, Intervention - non daily 12 Sep, 2017
Infant infection reduced by half with vitamin D supplementation – RCT May 2016 6286 Intervention, Infant-Child, Intervention - non daily 26 Aug, 2017
Breastfeeding mothers and Vitamin D: supplement only themselves usually, 4 out of 10 used monthly rather than daily – Jan 2017 803 Intervention, Infant-Child, old name, Intervention - non daily 05 Aug, 2017
Type 1 diabetes helped with 50,000 IU of vitamin D every two weeks – Nov 2014 5706 Diabetes, Intervention, Infant-Child, Intervention - non daily 20 Jul, 2017
Vitamin D required for breastfed infants – daily or monthly, infant or mother – Jan 2017 9121 Infant-Child, Intervention - non daily 20 May, 2017
Children getting 60,000 IU monthly got to vitamin D level of 33 ng – Sept 2015 7540 How much Vitamin D, Intervention, Infant-Child, Intervention - non daily 10 Sep, 2015

5 pages in both categories: Intervention - non daily + Hypertension

4 pages in both categories: Intervention - non daily + Cancer - Breast

4 pages in both categories: Intervention - non daily + Cancer - after diagnosis

18 pages in both categories: Intervention - non daily + Loading dose for Vitamin D

Page Hits Categories Major change
Single 600,000 IU dose of nanoemulsion Vitamin D is safe and effective to fight COVID, even if delay until enter ICU – RCT May 2024 1098 Loading dose for Vitamin D, Intervention, Top news, Virus, Intervention - non daily 01 Jun, 2024
Vitamin D loading dose of 30,000 IU twice a week is safe and effective – RCT July 2023 298 Loading dose for Vitamin D, Intervention, Top news, Intervention - non daily 22 Dec, 2023
Half as many problems if take Vitamin D (300,000 IU) before thyroidectomy – RCT Jan 2021 1241 Trauma and surgery, Loading dose for Vitamin D, Thyroid and parathyroid, Intervention, Intervention - non daily 24 Feb, 2023
Can get 50,000 IU Vitamin D anywhere on the globe 4516 Loading dose for Vitamin D, Top news, Optimum, Consensus, Increased use of D, Intervention - non daily, Better than daily, High-Dose 21 Dec, 2022
Vitamin D restored in teens by doses totalling 300,000 IU – Nov 2014 2939 Loading dose for Vitamin D, Youth, Intervention, Intervention - non daily 29 Oct, 2021
COVID-19 defeated 3x faster by 420,000 IU Vitamin D nanoemulsion – RCT Nov 12, 2020 5971 Loading dose for Vitamin D, Intervention, Virus, Intervention - non daily 21 Sep, 2021
COVID-19 mortality reduced 4X (chart looks like 2X) by large, infrequent doses of Vitamin D in France – July 2021 1500 Loading dose for Vitamin D, Intervention, Virus, Intervention - non daily 01 Aug, 2021
44 percent of successful RCTs in VitaminDWiki used non-daily dosing - Nov 2020 2667 Loading dose for Vitamin D, Intervention, Intervention - non daily, Better than daily 11 Jul, 2021
ICU patients greatly helped by Vitamin D loading doses – if gut-friendly – Oct 2020 2648 Trauma and surgery, Loading dose for Vitamin D, Gut, Intervention - non daily 18 Oct, 2020
ICU survival increased with vitamin D single 540K IU loading dose - JAMA Sept 2014 4546 Mortality and D, Trauma and surgery, Loading dose for Vitamin D, Intervention - non daily 25 Jul, 2020
Vitamin D levels in children optimized with six Vitamin D biscuits – RCT Nov 2018 1191 Loading dose for Vitamin D, Intervention, Infant-Child, Intervention - non daily 01 Oct, 2019
Waist size reduced 3 cm by Vitamin D in those with Metabolic Syndrome – Jan 2017 6973 Diabetes, Obesity, Loading dose for Vitamin D, Metabolic Syndrome, Intervention, Intervention - non daily 18 Aug, 2019
Esophageal Cancer surgery helped by 300,000 IU of Vitamin D – RCT Sept 2018 4384 Trauma and surgery, Loading dose for Vitamin D, Cancer - Other, Intervention - non daily 18 Sep, 2018
Pregnancies helped a lot by Vitamin D (injection then 50,000 IU monthly) – RCT May 2018 3955 Pregnancy, Loading dose for Vitamin D, Intervention, Intervention - non daily, Injection 28 May, 2018
Far more Vitamin D in breast milk from a 150,000 IU dose than from daily 5,000 IU – RCT May 2018 5426 Loading dose for Vitamin D, Intervention, Intervention - non daily 21 Mar, 2018
Weekly dosing of vitamin D is far better than single large dose (chronic liver, children) – March 2018 3649 Liver, Loading dose for Vitamin D, Intervention, Intervention - non daily 05 Mar, 2018
Common cause of dizziness (BPPV) reduced 5 X by several doses of 50,000 IU of vitamin D – 2015, 2016 11791 Seniors, Loading dose for Vitamin D, Intervention, Intervention - non daily, Ear 11 Feb, 2018
Canadian grant funding lost for prescribing 50,000 IU of vitamin D – July 2017 5871 Loading dose for Vitamin D, Intervention - non daily 23 Jul, 2017

5 pages in both categories: Intervention - non daily + Cognitive

8 pages in both categories: Intervention - non daily + Gut

4 pages in both categories: Intervention - non daily + How, when to take Vit. D

6 pages in both categories: Intervention - non daily + Trauma and surgery

6 pages in both categories: Intervention - non daily + High-Dose

5 pages in both categories: Intervention - non daily + HIV

4 pages in both categories: Intervention - non daily + Osteoarthritis

XX+ VitaminDWiki pages have both DAILY and WEEKLY in the title

The list is automatically updated

Items found: 27
Title Modified
Increased those taking Vitamin D daily in nursing home from 45% to 78% with a lot of effort (higher % if weekly to monthly) – Oct 2024 14 Oct, 2024
Weekly Vitamin D better than daily – lower cost, less pill burden, perhaps 1.5X better response – meta-analysis Oct 2024 14 Oct, 2024
Weekly, Monthly Vitamin D are typically better than daily - many studies 17 Mar, 2024
Simple vitamin D supplementation - daily, weekly, or monthly - Sept 2023 04 Oct, 2023
Vitamin D given daily, weekly, or monthly has similar response (116 RCTs) – meta-analysis Aug 2023 02 Oct, 2023
Muscles improved in women with 50,000 IU vitamin D weekly (8 weeks) plus daily Magnesium – RCT Sept 2020 16 Sep, 2023
Take vitamin D3 daily, weekly, or bi-weekly 16 Jul, 2023
60,000 IU vitamin D weekly with daily Calcium was safe but not enough in the winter – 2012 13 Jul, 2023
ADHD significantly treated by daily Magnesium plus weekly Vitamin D – RCT April 2021 30 Nov, 2022
Increase infant Vitamin D: forification, daily, weekly, monthly, breast milk - Review June 2022 07 Nov, 2022
Bone biomarkers increased equally by daily, weekly, or monthly Vitamin D (CKD in children in this case) – Nov 2022 02 Nov, 2022
COVID in hospital fought by Vitamin D (25,000 IU daily for 4 days, then 25K weekly) - RCT – July 2022 02 Oct, 2022
HIV treatment augmented by high-dose vitamin D, daily or weekly – Dec 2021 30 Jan, 2022
Weekly Vitamin D plus daily Magnesium is great (reduced depression in obese women in this case) – July 2021 13 Aug, 2021
Pain reduced by Vitamin D (60K weekly, then monthly) plus daily Calcium in 3 months – May 2021 16 Jul, 2021
Depression treated by 50K IU Vitamin D weekly (but not 1,000 IU daily) – meta-analysis Jan 2021 25 Apr, 2021
Weekly Vitamin D to mother after birth much better than daily - RCT Aug 2018 11 Mar, 2019
Vitamin D dosing - weekly may be better than daily – video Aug 2018 02 Sep, 2018
Vitamin D given weekly better than daily (Nursing home, 5,600 IU weekly) – Aug 2018 07 Aug, 2018
Vitamin D taken daily (4,000 IU) vs weekly (50,000 IU) – RCT 2019 23 Oct, 2017
Speculation – Weekly vitamin D dose will be better than daily if poor Receptor 12 Sep, 2017
Vitamin D daily or weekly dosing resulted in similar response -RCT Jan 2016 20 Jul, 2017
5,000 IU daily or 50,000 IU Vitamin D weekly repleted many dark skinned adolescents – RCT Dec 2015 06 Aug, 2016
Nursing home residents need Vitamin D 4,000 IU daily or 50,000 IU weekly – Jan 2016 25 May, 2016
Omega-3 weekly is more bio-available than daily (rat study) – July 2015 24 Feb, 2016
Vitamin D is very important during pregnancy – 4,000 daily or 50,000 weekly - review Jan 2015 02 Oct, 2015
Diabetes treated by 50,000 IU of vitamin D weekly with 1 g Calcium daily – RCT July 2014 14 Sep, 2014


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