The Colon Club

Vit D levels are very hard to rise with sun only. You need to be at certain time of the day (around 12pm) to be full body naked for 20-30min to get a special ray diapason that is beneficial for Vit D increase. Every day and for a long time. That is why even living in Cali or Florida does not make much difference. When studies were done, the further from Equator people are, the more cancer they have, provided all other food/environmental conditions are the same.

For the cancer patients the levels, to the best of my knowledge, must be from 80 to 100 ng/ml. I did not read the bibliography that Maia included, just my personal experience/reading. I know that when I stop taking Vit D, I have a drop down to 40, but normally it is in 80's with a maintenance dose. And I do live on Equator.
Vilca

Just because you live in a sunny state doesn't mean you are getting enough Vit D. I lived 50 years in South Florida from childhood to adulthood. Though I spent my teens in the sun, my adult years was mostly just working outdoors. At the time of my cancer diagnose, my Vit.D level was low so my doctor put me on pills. My readings are in the low 90's now and my doctor wants me to cutback from 1,000 to 500. I just don't feel comfortable doing that yet.

UPDATE: Labcorp now has 39 as 'low' and 100 as 'high norm'. I keep my D3 as close to 100 as possible but it takes 6,000 iu's daily and I live in Georgia.

As we age, our skin doesn't convert sunlight like it used to so more Vit. D3 is needed.

My sister had genetic testing done and found that she has a recessive trait where Vitamin D3 is poorly absorbed by the body and it looks like I have it as well.

I wonder what is the hen and the egg here..?
Hubby always had higher vitamin D3 test result than me before he was diagnosed with CRC. As soon as he got diagnosed I took a test on us both and suddenly he had quite a bit lower than me. (He had 29ng/ml and I had 45). Now after surgery and treatment he is back to a good vitamin D3 level again and he has not been supplementing a high amount. To me it feels like the Colon cancer caused his vitamin D3 to go down.

I don’t know, I live in Norway and my D3 vit at diagnosis was 94, so quite high. Actually all the parameters checked from blood, including the markers for CRC where in the normal range

Best

Claudia

Just be aware about which units your country's labs use for 25 hydroxy vitamin D in blood. It's a huge difference.
For example:
37.7 ng/ml = 94 nmol/l
vs
94 ng/ml = 235 nmol/l

There is a book written about taking vitamin D to help against cancer. I cant recall the name right now, but my dads GP recommended that we look into it when my dad was taking treatments, he said if it was him he would be on it. It was excessive amounts, but you needed to take vitamin K to help with it, which my dad could not take while on blood thinners. I have no idea if it is legit, but might be something to check out. If it can't hurt you what is the harm in it!

rp1954 wrote:Just be aware about which units your country's labs use for 25 hydroxy vitamin D in blood. It's a huge difference.
For example:
37.7 ng/ml = 94 nmol/l
vs
94 ng/ml = 235 nmol/l

The normal range is 50-150, my analysis report does not specify the unit, but I guess 94 is in the middle of the range, so rather good.

Beat

Claudia

Looks like your level is reported in nmol/l as the unit of measure. That serum vitamin D range would be 20 - 60 ng/ml, which is typical. Some researchers and doctors think that there are therapeutic regimes at higher levels, with a slightly prescriptive application (e.g. extra menatetrenone, no excess calcium).