Vitamin D – new powerful study

Dr. Weeks’ Comment:  Vitamin D3 is strongly associated with lower cancer effect and lower mortality.  In this recent definitive study describing the myriad benefits of vitamin D3,   I post for your review parts of the section on cancer.  You will read that  we have even more compelling data to recommend vitamin D to patients, but still, 9 out of 10 patients who present for  Corrective Cancer Care  (CCC)   have NOT had their vitamin D3 levels assessed by their oncologist.  I remain aghast and astonished that the importance of replenishing the stores of this scientifically proven beneficial naturally occurring non-drug nutrient, vitamin D3 is ignored!   It is shoddy indeed that, despite all the science supporting holistic immune-enhancing interventions,  still today,  only drugs are offered by premier oncologists. It is as if their specialty training has left your oncologist believing that cancer itself is a “chemotherapy deficiency illnesses”.  

So, if you are concerned about cancer for yourself or a loved one, have this simple test done: “25-OH D3” and make certain your levels are optimal – not just “in the normal range”. Top quality vitamin D3 “Light Assist”  (since vitamin D3 is made active by sunlight) is available at  here  




Association studies have related higher serum levels of 25(OH)D to reduced incidence of many types of cancers. It has been hypothesized that the local conversion of 25(OH)D to 1,25(OH)2D in healthy cells in the colon, breast, and prostate can help prevent malignancy by inducing cellular maturation, inducing apoptosis, and inhibiting angiogenesis while enhancing the expression of genes including P21 and P27 to control cellular proliferation (Figure 1).1271626 Another vitamin D-regulated gene is CYP3A4, whose protein product detoxifies the bile acid lithocholic acid.………..Epidemiologic studies have suggested that adequate levels of 25(OH)D are critical for the prevention of various solid tumors, including prostate, breast, ovarian, and colon cancers.97114115117118119120 A meta-analysis for the US Preventive Services Task Force regarding vitamin D supplementation concluded that each 4-ng/mL increase in blood 25(OH)D levels was associated with a 6% reduced risk of colorectal cancer but not with statistically significant dose-response relationships for prostate and breast cancer.97 In a large prospective study of lethal prostate cancer (1260 cases vs 1331 controls), men with the highest quartile of plasma 25(OH)D levels had less than half the risk of lethal prostate cancer compared with men with the lowest quartile of plasma 25(OH)D levels.115 A meta-analysis including 1822 colon and 868 rectal cancers reported an inverse association between circulating 25(OH)D levels and colorectal cancer, with a stronger association for rectal cancer.97121 Participants in the WHI who had a baseline 25(OH)D level less than 12 ng/mL and who took 400 IU of vitamin D3 and 1000 mg of calcium daily had a 253% increased risk of colorectal cancer compared with women who took the same amount of vitamin D3 and calcium for 7 years and had baseline serum 25(OH)D levels greater than 24 ng/mL.84122  ………A pooled analysis of 5 nested case-control studies reported an inverse association between plasma levels of 25(OH)D and the subsequent risk of pancreatic cancer.133 Compared with individuals with 25(OH)D levels less than 20 ng/mL, those with 25(OH)D levels of 20 ng/mL or greater experienced an approximately 30% lower risk of pancreatic cancer.

Grant120134135 reported that more than 13 cancers were reduced by adequate exposure to solar UV-B radiation. …….. a recent review of ecological studies associating solar UV-B exposure-vitamin D and cancers found strong inverse correlations with solar UV-B irradiance for 15 types of neoplasms: bladder, breast, cervical, colon, endometrial, esophageal, gastric, lung, ovarian, pancreatic, rectal, renal, and vulvar cancers and Hodgkin and non-Hodgkin lymphoma.138 Weaker evidence was observed for 9 other types of cancer: brain, gallbladder, laryngeal, oral/pharyngeal, prostate, and thyroid cancers; leukemia; melanoma; and myeloma.138 .


Vitamin D deficiency is associated with an increased risk of total mortality….”




Leave a Comment

Your email address will not be published. Required fields are marked *