Scores of studies show that Vitamin D prevents many cancers and treats a few cancers

• Prevention results from 2,000 to 5,000 IU of vitamin D
  Prevention really depends on the level of vitamin D in the blood, and some vitamin D deficient groups need much more
• Treatment needs > 8,000 IU of vitamin D
  But must be careful, as vitamin D makes some Chemotherapy more potent

A high percentage of all cancer deaths are prevented by a high enough level of vitamin D in your bloodstream

See also at VitaminDWiki: Cancer – Breast 221 items which includes

• Overview Breast Cancer and Vitamin D
• Breast Cancer chance decreased 16 percent for every extra ng of vitamin D – Jan 2013
• Vitamin D proven to treat or prevent many cancers in animals, but only breast cancer in humans so far – Jan 2014
• 2X more likely to survive breast cancer disease free if lots of vitamin D – July 2011
• 6X less Breast Cancer if have even minimal vitamin D – July 2013
• Vitamin D Might Be Able to Slash Your Breast Cancer Risk by 90 Percent - Baggerly, Mercola: May 2013
• Cancer Treatment and Prevention UK May 2011 Many presentations
  Cancer overview - Oliver, Data review - Grant, GrassRootsHealth Public Trial, Oncology overview - Dalgleish, RCT trial - Lappe
• Breast Cancer vs latitude Gapminder - Great U shaped curve with latitude
• Breast and other Cancer prevention - Dr. Wascher 2011 Blog and book
• Vitamin D and Breast Cancer Incidence and Outcome – Jan 2013

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See also at VitaminDWiki: Cancer – Colon 113 items which includes

• Overview Cancer-Colon and vitamin D
• After 30 years it still appears that vitamin D deals with colorectal cancer – Oct 2012
• Colon cancer 30 percent more likely if low vitamin D – 12th meta-analysis Aug 2015
• Colon cancer 30 percent more likely if problems with Vitamin D genes CYP24A1 or CYP27B1 – Nov 2015
• Colon cancer – how vitamin D prevents and treats it – Nov 2014
• Pathways that vitamin D prevents and treats colon cancer discovered, 2000 IU needed – Dec 2012
• Epidemiology of Vitamin D and Colorectal Cancer – Jan 2013
• Colon Cancer at Vitamin D Council

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See also at VitaminDWiki: Cancer – Prostate 91 items- which includes

• Vitamin D, Sunlight, and the Epidemiology of Prostate Cancer – Jan 2013
• Advanced prostate cancer 2X more likely if low vitamin D – Sept 2012
• Surviving Prostate Cancer - Book June 2012
• Prostate Cancer and Vitamin D studies
• Prostate cancer reduced when 4000 IU vitamin D was added– Hollis RCT April 2015
• 59 % more likely to die of Prostate Cancer if very low on vitamin D – April 2011
• 16 % less Prostate Cancer sometimes for each 10ng vitamin D increase - Jan 2011
• 40,000 IU vitamin D daily reduced prostate cancer growth the most – April 2012

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See also at VitaminDWiki: Cancer – Pancreatic 54 items- which includes

• Restoring vitamin D levels to Pancreatic patients required up to 20000 IU daily – May 2012
• Far fewer Pancreatic Cancer deaths at stage III and IV with more than 20 ng vitamin D – Sept 2013
• Meta-analysis vitamin D seems to prevent pancreatic cancer - June 2010 file
• Pancreatic Cancer massively deregulates the local Vitamin D receptors and CPY24A1 – July 2014
  Probable solution - increase level of vitamin D
• Pancreatic cancer 30 percent less likely in Australians who got lots of UVB (vitamin D) – Dec 2013

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See also at VitaminDWiki: Cancer – Lung 48 items- which includes

• Overview Lung cancer and vitamin D
• Vitamin A may hinder vitamin D benefits associated with Lung Cancer – July 2013
• Lung Cancer risk decreases 5 percent for every 2.5 nanogram increase in Vitamin D – meta-analysis Sept 2015
• One third of lung disease patients in China had less than 4ng of vitamin D – May 2012
• Low vitamin D strongly related to death due to tobacco cancer, but not others – March 2013
• Vitamin A may hinder vitamin D benefits associated with Lung Cancer – July 2013

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See also at VitaminDWiki: Cancer - After 84 items which includes

• 2000 IU of vitamin D reduced fatigue of advanced cancer – RCT May 2012
• Cancer patients 64% less likely to die if have high level of vitamin D – Dec 2011
• Vitamin D appears to both prevent and treat various cancers – Mar 2011
• How I TREAT Vitamin D Deficiency - for Cancer Mar 2010
• Chemotherapy might be amplified by vitamin D
• Metastatic Cancer is maybe reduced by vitamin D - 5 articles
• Is vitamin D the only supplement which consistently helps cancer survivors – Aug 2010
• Cancer deaths of senior women 60 percent more likely if low Vitamin D – March 2015
• 3X less pelvic inflammation from cancer radiation if high level of vitamin D – Feb 2015

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See VitaminDWiki other cancer

Cancer - Bladder 23 items

• Bladder cancer 60 percent less likely if have high vitamin D – meta-analysis Dec 2015

Cancer - Ovarian 21 items

• Ovarian Cancer: Interplay of Vitamin D Signaling and miRNA Action. – 2014
• Ovarian Cancer – 7 percent more likely to survive longer for every 4 ng higher vitamin D – July 2015
  Note: fairly easy to increase vitamin D levels by 40 ng
• Ovarian Cancer 5.8 X more likely if both low vitamin D and Fok1 gene change – May 2013
• Ovarian cancer: more likely to survive if more vitamin D – Aug 2012
• Increased risk of some female cancers if low vitamin D (due to genes) – meta-analysis June 2015

Cancer – Skin 109 items

• Overview Suntans melanoma and vitamin D
• Melanoma is 44 percent LESS LIKELY if get sun on the job – Nov 2013
• Skin Cancer (SCC) minimized if get sun time around noon – Nov 2015
  Higher UVB to UVA ratio in the middle of the day
• Alzheimer disease 5X less likely with nonmelanoma skin cancer (lots of vitamin D) – May 2013
• 18X increased destruction of skin cancers if active vitamin D added to photodynamic therapy (mice) – March 2015

Cancer – Lymphoma 22 items

• Lymphoma, leukemia etc, survival poor if low vitamin D – meta-analysis March 2015
• Cancer (colon, breast, lymph) survival about 2X better with high level vitamin D – meta-analysis July 2014
• Some childhood cancer 30% less likely in parts of California with more UVB – April 2013

Cancer – General, others 209 items

• Cancer survival 4 percent more likely with just a little more vitamin D (4 ng) - meta-analysis July 2014
• Vitamin D and Risk of Rarer Cancers – Jan 2013
• Death of women from cancer 24 percent less likely if 20 ng more vitamin D – meta-analysis Sept 2013
• Some childhood cancer 30% less likely in parts of California with more UVB – April 2013
• Advanced stage cancer 3X more likely if low level of vitamin D – March 2012
• Vitamin D even repairs some genes – Jan 2012
  Strong hint as to why Vitamin D prevents and treats so many different types of cancer
• VitaminDWiki Blog post: How vitamin D deals with Cancer Feb 2012
• Low UVB is associated with 15 types of Cancer – Jan 2012
• More Cancer, less Solar Radiation - 1941

Following graph from the CDC August 2010

CLICK HERE for Original study by Lappe - 2007
41 minutes good video of Lappe explaining the trial
in which she mentions the next 5 year trial underway with 2,000 IU of vitamin D
Breast Cancer details from the study
For years 2-4
Placebo: 8 Breast Cancers out of 266 women
1100 IU vitamin D + Calcium 4 Breast Cancers out of 403 women
That is 8/266 ==> 4/403 with vitamin D
So roughly 3% ==> 1% with 1100 IU of vitamin D
about a 3X reduction for Breast Cancer(vs 4X reduction for all Cancers)
CLICK HERE for Lappe -2011 slide description of original study

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Colon Cancer Chart: > 40ng is good

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VitaminDSurvivor Blog Aug 2011

He is thinking ahead a few years to the large decrease in Cancer when many people have vitamin D levels > 40 ng/ml.
"If the numbers follow the studies about vitamin D and cancer, then as the population gets an average serum level above 40 ng/ml,
  we can expect the cancer incidence to drop by greater than seventy % from all causes.
Seven out of ten people that you know have cancer would not have had that result.
What happens to the medical economy if that occurs?
After all, it is not only cancer that vitamin D3 impacts, it is heart disease and diabetes as well, the other two large killers.
I am sure this scares the leaders at NCI, HHS, and the medical industry as if they were facing a mountain base-jump with no parachute."

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17 Cancers reduced by Vitamin D - Grant May 2011

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Cancer Intervention Trials with Vitamin D 98 in-process as of July 2018

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Increase in Childhood Cancer in recent decades

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Why Medicine Won’t Allow Cancer to Be Cured Mercola Aug 2013

early 1900s, one in 20; 1940s, one in 16; 1970s, one in 10; Today, it’s one in 3
(VitaminDWiki notices that vitamin D also decreased during the same time period)

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Cancer $creening Doesn't Save Lives, Meta-Study Reveals 

Huge problem of false positives/overdiagnosis GreenMedInfo Jan 2015

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The Impact of Vitamin D in Cancer - book chapter - 2017

 Download the PDF from VitaminDWiki

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Alternative therapies have worse outcomes whe cancer therapy is ignored - July 2018

Complementary Medicine, Refusal of Conventional Cancer Therapy, and Survival Among Patients With Curable Cancers
Skyler B. Johnson, MD1; Henry S. Park, MD, MPH1; Cary P. Gross, MD2; et al James B. Yu, MD, MHS1,2
JAMA Oncol. Published online July 19, 2018. doi:10.1001/jamaoncol.2018.2487
 Download the PDF from VitaminDWiki
"Vitamin D" does not occur once in the study
Note: Study only looks at
Cancer treatment, not prevention
Cancer mortality, not cancer survival

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Cancer Factoids from The Body, by Bill Bryson, 2019

• They (Cancers) have evolved to avoid detection,” says Vormoor. “They can hide from drugs. They can develop resistance. (VitaminDWiki also believes that many have also learned to hide
• Something we have only recently realized is that before cancers metastasize, they are able to prepare the ground for an invasion in distant target organs, probably through some form of chemical signaling. “What this means,” Vormoor says, “is that when cancer cells spread to other organs, they don’t just turn up and hope for the best. They already have a base camp
• Viruses and bacteria cause cancers, too. The World Health Organization in 2011 estimated that 6 percent of cancers in the developed world but 22 percent in low- and middle-income countries are attributable to viruses alone.
• A significant fraction of childhood cancer deaths come not from the cancer itself but from the treatments for it.

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