How to optimize vitamin D supplementation to prevent cancer, based on cellular adaptation and hydroxylase enzymology.
Vieth R.
Anticancer Res. 2009 Sep;29(9):3675-84. Review.
PMID: 19667164
Benefit-risk assessment of vitamin D supplementation.
Bischoff-Ferrari HA, Shao A, Dawson-Hughes B, Hathcock J, Giovannucci E, Willett WC.
Osteoporos Int. 2009 Dec 3. [Epub ahead of print]
PMID: 19957164
Conclusion Our analysis suggests that mean serum 25(OH)D levels of about 75 to 110 nmol/l provide optimal benefits for all investigated endpoints without increasing health risks. These levels can be best obtained with oral doses in the range of 1,800 to 4,000 IU vitamin D per day; further work is needed, including subject and environment factors, to better define the doses that will achieve optimal blood levels in the large majority of the population.
How to optimize vitamin D supplementation to prevent cancer, based on cellular adaptation and hydroxylase enzymology.
Vieth R.
Anticancer Res. 2009 Sep;29(9):3675-84. Review.
PMID: 19667164
Optimal vitamin D status attenuates the age-associated increase in systolic blood pressure in white Americans: results from the third National Health and Nutrition Examination Survey.
Judd SE, Nanes MS, Ziegler TR, Wilson PW, Tangpricha V.
Am J Clin Nutr. 2008 Jan;87(1):136-41.
PMID: 18175747
Conclusions: SBP is inversely associated with serum vitamin D concentrations in nonhypertensive white persons in the United States. This observation provides a rationale for studies on the potential effects of vitamin D supplementation as a method to reduce SBP in persons at risk of hypertension.
Vitamin D treatment in multiple sclerosis.
Myhr KM.
J Neurol Sci. 2009 Jun 22. [Epub ahead of print]
PMID: 19549608
doi:10.1016/j.jns.2009.05.002
Epidemiological evidence combined with clinical and laboratory analyses, and experimental animal models, suggest a possible influence of vitamin D on MS susceptibility as well as clinical disease activity.
Supplement with vitamin D may reduce the risk of developing MS. An intervention may also reduce the risk of conversion from a first clinical event suggestive of MS to clinical definite MS, as well as reduce the relapse rate among patients with relapsing remitting MS. More studies are, however, needed to determine optimal dose and serum level for vitamin D, as well as target populations and optimal timing for intervention.
How to optimize vitamin D supplementation to prevent cancer, based on cellular adaptation and hydroxylase enzymology.
Vieth R.
Anticancer Res. 2009 Sep;29(9):3675-84.
PMID: 19667164
Vitamin D appears to boost health from head to toe, according to the September issue of Mayo Clinic Health Letter. But, so far, there's no consensus on what level of vitamin D is optimal for good health.
Development of a model for optimal food fortification: vitamin D among adults in Finland.
Hirvonen T, Sinkko H, Valsta L, Hannila ML, Pietinen P.
Eur J Nutr. 2007 Aug;46(5):264-70. Epub 2007 May 18.
PMID: 17514377
Bischoff-Ferrari HA, Giovannucci E, Willett WC, Dietrich T, Dawson-Hughes B.
Estimation of optimal serum concentrations of 25-hydroxyvitamin D for multiple health outcomes.
Am J Clin Nutr. 2006 Jul;84(1):18-28. Review.
PMID: 16825677
Grant WB, Holick MF.
Benefits and requirements of vitamin D for optimal health: a review.
Altern Med Rev. 2005 Jun;10(2):94-111. Review.
PMID: 15989379
Gorham ED, Garland CF, Garland FC, Grant WB, Mohr SB, Lipkin M, Newmark HL, Giovannucci E, Wei M, Holick MF.
Optimal vitamin D status for colorectal cancer prevention: a quantitative meta analysis.
Am J Prev Med. 2007 Mar;32(3):210-6.
PMID: 17296473
Supplements of 20 microg/d cholecalciferol optimized serum 25-hydroxyvitamin D concentrations in 80% of premenopausal women in winter.\nNelson ML, Blum JM, Hollis BW, Rosen C, Sullivan SS.\nJ Nutr. 2009 Mar;139(3):540-6. Epub 2009 Jan 21.\nPMID: 19158226
Optimal serum 25-hydroxyvitamin D levels for multiple health outcomes.
Bischoff-Ferrari HA.
Adv Exp Med Biol. 2008;624:55-71. Review.
PMID: 18348447
DOI: 10.1007/978-0-387-77574-6_5
Recent evidence suggests that higher vitamin D intakes beyond current recommendations may be associated with better health outcomes. In this chapter, evidence is summarized from different studies that evaluate threshold levels for serum 25(OH)D levels in relation to bone mineral density (BMD), lower extremity function, dental health, risk of falls, admission to nursing home, fractures, cancer prevention and incident hypertension. For all endpoints, the most advantageous serum levels for 25(OH)D appeared to be at least 75 nmol/l (30 ng/ml) and for cancer prevention, desirable 25(OH)D levels are between 90-120 nmol/l (36-48 ng/ml). An intake of no less than 1000IU (25 meg) of vitamin D3 (cholecalciferol) per day for all adults may bring at least 50% of the population up to 75 nmol/l. Thus, higher doses of vitamin D are needed to bring most individuals into the desired range. While estimates suggest that 2000 IU vitamin D3 per day may successfully and safely achieve this goal, the implications of 2000 IU or higher doses for the total adult population need to be addressed in future studies.
"For what reason I don't know, but this January 2009 editorial by William Faloon of the Life Extension Foundation is making the rounds. Perhaps it just came available on the web.
It's a good read, particularly in light of the billions and trillions of dollars the thieves & thugs in DC are about to flush down the crapper on your behalf. Some notable excerpts.
A large number of new vitamin D studies have appeared in the scientific literature since I wrote my plea to the federal government. These studies don't just confirm what we knew 16 months ago-they show that optimizing vitamin D intake will save even more lives than what we projected.
For instance, a study published in June 2008 showed that men with low vitamin D levels suffer 2.42 times more heart attacks. Now look what this means in actual body counts.
Each year, about 157,000 Americans die from coronary artery disease-related heart attacks. Based on this most recent study, if every American optimized their vitamin D status, the number of deaths prevented from this kind of heart attack would be 92,500.
To put the number of lives saved in context, tens of millions of dollars are being spent to advertise that Lipitor® reduces heart attacks by 37%. This is certainly a decent number, but not when compared with how many lives could be saved by vitamin D. According to the latest study, men with the higher vitamin D levels had a 142% reduction in heart attacks."
"This website is about Vitamin D and MS
Multiple sclerosis (MS) is a chronic disease of the central nervous system (CNS), with an uncertain cause. Colleen Hayes and Donald Achaeson have suggested that insufficient sunlight exposure and chronic viral infections might be unrelated environmental risk factors for MS. These risk factors may act synergistically to enable the pathogenic autoimmune response.
The prevalence of MS is highest where environmental supplies of vitamin D are lowest. Sunshine enables the production of vitamin D3 (VD3) in the skin. Epidemiological studies have shown that higher vitamin D blood levels are associated with lower risk, less relapses and a slower progression of multiple sclerosis. Higher vitamin D levels can be achieved in part by increased oral intake of VD3.
Optimal health requires serum 25 hydroxyvitamin D levels higher than 20 ng/ml (50 nmol/L) P Lips, 40 ng/ml (100 nmol/L) P Heaney or at least 40 ng/ml (100 nmol/L) R Vieth. "
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A positive dose-response effect of vitamin D supplementation on site-specific bone mineral augmentation in adolescent girls: a double-blinded randomized placebo-controlled 1-year intervention.
Viljakainen HT, Natri AM, Kärkkäinen M, Huttunen MM, Palssa A, Jakobsen J, Cashman KD, Mølgaard C, Lamberg-Allardt C.
J Bone Miner Res. 2006 Jun;21(6):836-44.
PMID: 16753014
doi: 10.1359/jbmr.060302
We conclude that the current vitamin D recommendation for adolescent girls, at least in the northern latitudes, is too low to ensure sufficient vitamin D status during winter. Intake of vitamin D at rates of 10-15 μg/day aids to maintain stable S-25(OH)D concentrations during winter. Vitamin D induced BMC augmentation by decreasing bone resorption, but not affecting bone formation, which was reflected by the biochemical markers of bone turnover. Optimizing bone mineral gain in adolescence is crucial to the prevention of osteoporosis later in life. Increasing vitamin D intake to 10-15 μg/day aids in attaining this goal.
The role of vitamin D and calcium in type 2 diabetes. A systematic review and meta-analysis.
Pittas AG, Lau J, Hu FB, Dawson-Hughes B.
J Clin Endocrinol Metab. 2007 Jun;92(6):2017-29. Epub 2007 Mar 27. Review.
PMID: 17389701
.CONCLUSIONS: Vitamin D and calcium insufficiency may negatively influence glycemia, whereas combined supplementation with both nutrients may be beneficial in optimizing glucose metabolism.
Comparison of daily, weekly, and monthly vitamin D3 in ethanol dosing protocols for two months in elderly hip fracture patients.
Ish-Shalom S, Segal E, Salganik T, Raz B, Bromberg IL, Vieth R.
J Clin Endocrinol Metab. 2008 Sep;93(9):3430-5. Epub 2008 Jun 10.
PMID: 18544622
doi:10.1210/jc.2008-0241
CONCLUSIONS: Supplementation with vitamin D can be achieved equally well with daily, weekly, or monthly dosing frequencies. Therefore, the choice of dose frequency can be based on whichever approach will optimize an individual's adherence with long-term vitamin D supplementation.