Guest guest Posted September 9, 2008 Report Share Posted September 9, 2008 Hi folks: Quick question: Has anyone here had their serum 25(OH)D tested and found it to be above 100 nmol/L, or above 40 ng/ml (which is the same thing) ? And if you have had a reading that high can you please share with us what you did to achieve that? The reference range here for this test is now: 75 - 250 nmol/L, or 30 - 100 ng/ml. In my case, after supplementing substantial amounts of vitamin D2 for three months during the winter, and then getting a fair amount of sun exposure this summer, my number has risen from a pre-treatment 72 nmol/L to 92. I had expected/hoped it to be well over 100. Thanks. Rodney. Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 10, 2008 Report Share Posted September 10, 2008 Rodney Two more data points for you: Two of us (M & F age 63 in Washington, DC) have been taking 2000 IU of D3 as cholecalciferol in oil filled softgels since last fall, and we were both tested this June at 38 ng/ml (95 nmol/L). Sorry but I do not know where we started from since this was our first test. We are now taking 4000 IU D3 with the view that each 1000 IU of D3 increases the blood concentration by about 10 ng/ml (25 nmol/L) and we want to get to 50+ ng/ml (125+ nmol/L). Dave Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 10, 2008 Report Share Posted September 10, 2008 My blood test of 2.5 months ago showed my 25(OH)D level to be 44.0 ng/mL. To get to this level, I supplemented with Vitamin D3, 5,000 IU daily, for at least 6 months. Prior to that, I took 1,000 IU D3 for 1-2 years, and then 2,000 IU D3 for about 6 months......and surprisingly, my blood level of 25- hydroxy-Vitamin D was only 30 ng/mL after all that. So after reading several issues of the Vitamin D newsletter, and several scientific articles about Vitamin D, I bumped the supplementation way up to 5,000 IU. Needless to say, I found it difficult to raise my 25(OH)D blood levels, in spite of living in a very sunny climate, but only getting incidental sun exposure, mainly arms and face. I currently still take 5,000 IU D3 daily....and will have another blood test later this year. My goal with respect to blood levels: 50-60 ng/mL The lab I use has almost the same reference range as yours: 32-100 ng/mL. However, based on what I have read, it seems that the upper part of the reference range (100 ng/mL) is too high and possibly not safe. --- In , " Rodney " <perspect1111@...> wrote: > > > Hi folks: > > Quick question: > > Has anyone here had their serum 25(OH)D tested and found it to be above > 100 nmol/L, or above 40 ng/ml (which is the same thing) ? > > And if you have had a reading that high can you please share with us > what you did to achieve that? > > The reference range here for this test is now: > > 75 - 250 nmol/L, or > > 30 - 100 ng/ml. > > In my case, after supplementing substantial amounts of vitamin D2 for > three months during the winter, and then getting a fair amount of sun > exposure this summer, my number has risen from a pre-treatment 72 nmol/L > to 92. I had expected/hoped it to be well over 100. > > Thanks. > > Rodney. > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 10, 2008 Report Share Posted September 10, 2008 Hi : Yes. My understanding also is that you certainly do not want to get too close to the upper end of the range. But 60 ng/ml (=150 nmol/L) would probably be wonderful, if I can find a way to get up there. Incidentally, I just bought 100 x 50,000 IU capsules of D3 from Bio-Tech Pharmacal over the internet, via their website. They certainly seem like a legitimate business and the capsules arrived promptly. 100 capsules cost $30 plus ~$10 for shipping. That is a much better price per 1000 IU than even the best prices I see in drug stores here. I plan to take one capsule every two to three weeks. Then get tested again in the spring. For the benefit of newer members, the following gif chart is the evidence which makes the vitamin D issue so compelling for me - combined with the data for CR, the most stunning health information I have ever encountered, I think: http://www.ajcn.org/content/vol85/issue6/images/medium/znu0060745230002.gif From: http://www.ajcn.org/cgi/content/full/85/6/1586 Rodney. (Of course I have no connection of any kind with Bio-Tech Pharmacal, except as a customer, one time so far.) > >> > > > Hi folks:> > > > Quick question:> > > > Has anyone here had their serum 25(OH)D tested and found it to be > above> > 100 nmol/L, or above 40 ng/ml (which is the same thing) ?> > > > And if you have had a reading that high can you please share with > us> > what you did to achieve that?> > > > The reference range here for this test is now:> > > > 75 - 250 nmol/L, or> > > > 30 - 100 ng/ml.> > > > In my case, after supplementing substantial amounts of vitamin D2 > for> > three months during the winter, and then getting a fair amount of > sun> > exposure this summer, my number has risen from a pre-treatment 72 > nmol/L> > to 92. I had expected/hoped it to be well over 100.> > > > Thanks.> > > > Rodney.> >> Quote Link to comment Share on other sites More sharing options...
Guest guest Posted April 11, 2009 Report Share Posted April 11, 2009 I'm responding to Rodney's query below from last September about achieving a serum 25(OH)D test above 40 ng/ml. I just got my test back yesterday and my 25(OH)D level was 50 ng/ml. The last time it was tested was in 2005, when it was 38 ng/ml. After discussing the benefits of D-3 with Rodney back in September 2008 when he started an experiment taking 50,000 IU, I decided to increase how much I was getting. I began taking a NOW Vitamin D-3/K-2 supplement twice per day. So I was getting 2000 IU of D-3 and 90 mcg K-2 daily. Since I wasn't tested in 2008, I can't be sure that the supplement is what did it, but I suspect that it is. Diane > > > Hi folks: > > Quick question: > > Has anyone here had their serum 25(OH)D tested and found it to be above > 100 nmol/L, or above 40 ng/ml (which is the same thing) ? > > And if you have had a reading that high can you please share with us > what you did to achieve that? > > The reference range here for this test is now: > > 75 - 250 nmol/L, or > > 30 - 100 ng/ml. > > In my case, after supplementing substantial amounts of vitamin D2 for > three months during the winter, and then getting a fair amount of sun > exposure this summer, my number has risen from a pre-treatment 72 nmol/L > to 92. I had expected/hoped it to be well over 100. > > Thanks. > > Rodney. > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted April 29, 2009 Report Share Posted April 29, 2009 Hi folks: I just noticed the following excerpt in the post below: `...... when he started an experiment taking 50,000 IU, ....... ` Just so that no one is in any doubt, I have been taking 50,000 IU ONCE EVERY TWO WEEKS. I would not want anyone to think I was taking 50,000 IU daily. Rodney. > > > > > > Hi folks: > > > > Quick question: > > > > Has anyone here had their serum 25(OH)D tested and found it to be above > > 100 nmol/L, or above 40 ng/ml (which is the same thing) ? > > > > And if you have had a reading that high can you please share with us > > what you did to achieve that? > > > > The reference range here for this test is now: > > > > 75 - 250 nmol/L, or > > > > 30 - 100 ng/ml. > > > > In my case, after supplementing substantial amounts of vitamin D2 for > > three months during the winter, and then getting a fair amount of sun > > exposure this summer, my number has risen from a pre-treatment 72 nmol/L > > to 92. I had expected/hoped it to be well over 100. > > > > Thanks. > > > > Rodney. > > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted May 6, 2009 Report Share Posted May 6, 2009 > Has anyone here had their serum 25(OH)D tested and found it to be > above 100 nmol/L, or above 40 ng/ml (which is the same thing) ? I've taken 50,000 IU of D3 daily for the past 2 years. The first blood test (after 6 months of 5000 IU D3 + 3 months 50,000 IU) came back at 406 ng/ml. About 15 months later it came back at 239 ng/ml. The impact of this high intake is mostly theoretical. Maybe my allergies are a bit muted, but they vary so much on their own that it's not really clear. The most important requirement while using 50,000 IU of D3 daily is to not take any supplemental calcium. Most, if not all, of the reported side effects of high dose vitamin D are really the result of supplemental calcium and/or D2. The D3 is one component of a group of therapies that I'm following to decalcify my arteries. Several other components are 5 gm arginine, 1 gm citruline, and 90 mcg MK-7 (component of K2). For more info on vitamin D3, I'd recommend the following: An 8 minute video: Talk by Dr. Prendergast at Smart Life Forum. About an hour long. http://smartlifeforum.org/2007/02/2007-02-15-SLF-Prendergast-large.mov Dr. Cannell's vitamin D website: www.vitamindcouncil.org Quote Link to comment Share on other sites More sharing options...
Guest guest Posted May 6, 2009 Report Share Posted May 6, 2009 I’m suspicious of any one supplement that is touted as a panacea for a myriad of diseases and conditions. This happens routinely – that one food, supplement, or practice is touted as the magic bullet or the fountain of youth; in many instances the magic substance has even (after more careful research) turned out to be harmful. Currently Vit D is being touted as the cure for just about anything. Moderation and caveat emptor. I do now supplement with Vit D – although nowhere near the levels of 50,000 IU daily. I take a modest 1000 IU during the winter months. In the summer I’ll skip supplementing as I get plenty from the sun – which from what I’ve read is the best way to get your D. I would be interested in other opinions . Especially from members who are in the medical profession, researchers, and people knowledgeable in nutrition such as Jeff. From: Rob_Larson <Rob_Larson@...> Reply-< > Date: Wed, 06 May 2009 08:55:49 -0000 < > Subject: [ ] Re: Vitamin D, 25(OH)D Test > Has anyone here had their serum 25(OH)D tested and found it to be > above 100 nmol/L, or above 40 ng/ml (which is the same thing) ? I've taken 50,000 IU of D3 daily for the past 2 years. The first blood test (after 6 months of 5000 IU D3 + 3 months 50,000 IU) came back at 406 ng/ml. About 15 months later it came back at 239 ng/ml. The impact of this high intake is mostly theoretical. Maybe my allergies are a bit muted, but they vary so much on their own that it's not really clear. The most important requirement while using 50,000 IU of D3 daily is to not take any supplemental calcium. Most, if not all, of the reported side effects of high dose vitamin D are really the result of supplemental calcium and/or D2. The D3 is one component of a group of therapies that I'm following to decalcify my arteries. Several other components are 5 gm arginine, 1 gm citruline, and 90 mcg MK-7 (component of K2). For more info on vitamin D3, I'd recommend the following: An 8 minute video: Talk by Dr. Prendergast at Smart Life Forum. About an hour long. http://smartlifeforum.org/2007/02/2007-02-15-SLF-Prendergast-large.mov Dr. Cannell's vitamin D website: www.vitamindcouncil.org Quote Link to comment Share on other sites More sharing options...
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