Members of the holistic health community have been talking about the connection between vitamin D and cancer prevention and survival for a LONG time.
In 2016, a landmark study published in PLOS ONE found that women over 55 with blood concentrations of vitamin D higher than 40ng/ml, had a 67% lower risk of cancer compared women with levels lower than 20ng/ml.
“We have quantitated the ability of adequate amounts of vitamin D to prevent all types of invasive cancer combined, which had been terra incognita until publication of this paper,” said Cedric Garland, researcher and adjunct professor at the UC San Diego School of Medicine Department of Family Medicine and Public Health. (Note: they excluded skin cancer)
The researchers concluded that optimal levels for cancer prevention are between 40 and 60ng/ml, (100-150 nmol/L) and that most cancers occur in people with vitamin D blood levels between 10 and 40ng/ml.
The study did not reveal whether supplementation or sun exposure was the best way to obtain vitamin D. However, the researchers concluded that vitamin D only starts protecting against cancer once you get you blood level up to 40 ng/ml. They noted that more health benefits were observed at even higher levels.
A 2005 study found that women with blood concentrations of vitamin D higher than 60ng/ml had an 83% reduction in breast cancer compared with those lower than 20ng/ml.
The Sunshine Vitamin (If you can get it)
Most experts agree that the best source of vitamin D is sunshine, and you may have seen recommendations like “get 10-20 minutes of sunshine per day on as much of your body as possible”.
-Order blood work to check your vitamin D3 level. You can order a test kit from home at: https://grassrootshealth.net/project/daction/
-Depending on your current D3 level and your target level, you could take 1,000-10,000 IU per day, then retest in 30 days and adjust accordingly. It may take a few months to get your optimal daily dose dialed in.
What form to take?
I take liquid drops or gelcaps. I took a popular “Raw D3” supplement for nearly a year and found that I was still low in D3.
Magnesium is also critical for D3 absorption. Magnesium deficiency shuts down the vitamin D synthesis and metabolism pathway. Plant foods with high levels of magnesium are dark leafy greens, beans, nuts, avocados, and whole grains.
There are also claims that K2 is necessary to the absorption of D3, but the studies cited above demonstrate that it is not necessary to take a D3+K2 supplement because many of us get adequate K2 in our diets. I haven’t been able to find a study comparing the absorption rate of D3 versus D3+K2. If you know of one, feel free to post a link to it in the comments section. (Please make sure it’s a double blind study not a bloggers opinion.)
I take vitamin D3 gelcaps from Better Way Health. They are friends of mine. I love their products. And I am one of their affiliate partners. And I negotiated a discount for my readers! You can use the coupon code “chris” to get 10% off your order. Plus if you sign up for auto ship, you’ll save another 15%, for a total of 25% off every month. (I also take their Curcumin and Beta Glucans)
Whatever form you take of D3 you take, if after a month, your D3 levels aren’t up, you may need to take more, or take a different form, or supplement with magnesium to increase absorption.
The researchers in the landmark study (mentioned at the top of this post) concluded that the ideal vitamin D blood level for cancer prevention is between 40-60 ng/ml. So you definitely want to get it up into that range, but even higher, in 60-80 ng/ml range, might be even better.
I've interviewed over 60 people who've healed all types and stages of cancer. Check them out here. Or use the search bar to find survivors of specific cancer types.
I also created a coaching program for cancer patients, caregivers and anyone who is serious about prevention called SQUARE ONE. It contains the step-by-step strategies used by myself and everyone I know who has healed cancer with nutrition and natural, non-toxic therapies.