Vitamin K is a fat-soluble vitamin best known for its regulation of proper blood clotting and its significant role in bone health. 1
The term "vitamin K" actually refers to a family of related substances called naphthoquinones, in which there are two sub-types, known as vitamin K1 and vitamin K2.
Vitamin K1
Alternate names: Phylloquinone, phytomenadione, and phytonadione.
Vitamin K1 is made by plants such as green leafy vegetables, olive oil, soy beans, brussel sprouts, broccoli, cauliflower, coffee, and green tea.
Vitamin K2
Alternate names: Menaquinone and menatetrenone.
"Vitamin K2" is a term that also encompasses different sub-types, of which MK-4 and MK-7 are the two most commonly found in supplements.
MK-4
Naturally synthesized from vitamin K1 by animals.
Sources are various meats and egg yolks.
MK-7 (also MK-8 and MK-9)
Produced in the human gastro-intestinal tract (though not absorbed).
Sources are bacterially-fermented foods such as natto and cheese.
DX IDC TNBC 6/09 age 49, Stage 1,Grade 3, 1.5cm,0/5Nodes,KI-67 48%,BRCA-,6/09bi-mx, recon, T/C X4(9/09) 11/10 Recur IM node, Gem,Carb,Iniparib 12/10,MRI NED 2/11,IMRT Radsx40,CT NED11/13,MRI NED3/15
Interesting
article in which Dr Angeline discusses the importance of vitamin D in
surgery recovery. Also, he and his team have been following New York
Giant injuries and found that all injured players have low vitamin D
levels!
Vitamin D is an essential micronutrient with a central role in maintaining health. I recommend prudent daily sun exposureto support the natural production of vitamin D in our skin as one of the best ways to get enough of this vitamin. But if, like many these days, you have few opportunities to go outside due to work, school or for other reasons, you may be at risk for vitamin D deficiency. Decreased or insufficient levels of vitamin D have been linked to:
Suppressed immunity: Our innate systems of defense may not function efficiently without adequate vitamin D, allowing increased susceptibility to infectious agents.
Increased risk of chronic disease: Low levels of vitamin D have been associated with a higher than normal risk of heart disease and several kinds of cancer.
Heightened inflammation: Vitamin D is a key cofactor in regulating inflammation throughout the body.
Just got my latest D results yesterday. Originally about 15 when diagnosed 2 years ago, very hard time elevating last year. Now it is at 41. My question is what is it supposed to be at? It seems to have a large range. I have been taking 8000 IU, gyno wants me to cut back to 3000. Not comfortable with that though.
Thank you very much Donna, after reading the article I now know I would like to be in the 50s. If it is still withing the wide range of normal then I see no reason to not.
For what it's worth, my levels have been in the low 60's for the last couple of years. I take at least 5,000 ius a day and get tested at least once a year. It hasn't changed much between tests, maybe a point up or down.
Donna
DX IDC TNBC 6/09 age 49, Stage 1,Grade 3, 1.5cm,0/5Nodes,KI-67 48%,BRCA-,6/09bi-mx, recon, T/C X4(9/09) 11/10 Recur IM node, Gem,Carb,Iniparib 12/10,MRI NED 2/11,IMRT Radsx40,CT NED11/13,MRI NED3/15
There was a paper published earlier this year in JAMA Internal Medicine reporting that over the counter Vit D3 not only varies between brands but also between pills from the same bottle, as much as 52% to 135% of the stated dose.
My Vit D levels have been in the low 40's since starting Vit D3 supplementation, initially at 1000 IU then 2000 IU. My level actually dropped a little bit while taking the same 2000 IU. When I read this article, I swapped out the bottle I had for a USP (US Pharmacopeial) verified brand I got online and took the same 2000 IU a day. After 3 months on this, my Vit D level came back at the highest ever, 63.
Now I can't say if the increase in my Vit D plasma levels is solely due to the switch in brands but it is definitely a consideration, especially for all of you considering taking more and more. I would recommend that at least you switch to a USP verified source and re-test before doing anything else.
About 6 months before finding out I had cancer, I developed psoriasis. I'm not talking like a little patch- it spread over my entire body and disfigured me to the point where I couldn't go out in public. I couldn't maintain proper body temperature, I was in constant severe pain, my legs swelled up- I was a mess. I had never had psoriasis before, and one of the most frustrating things about it was that there was so little help and support out there.
Anyway, my point is- the rheumatologist I ended up seeing for this did lots of blood work, and determined I had a severe vitamin D deficiency.
Now to find out that also could have a link to breast cancer? WOW.
THANK YOU for all these links, I need to read more about this!
generally Vitamin D and B12 are the most common deficient vitamins in the cancer patients
Sun rays help to boost vitamin d But for b12 there are no easy ways other than the injection shots to be taken every month depending on the count of B12 in the blood.
A study published in the Journal of Clinical Endocrinology & Metabolism is the first report of an oral probiotic supplement significantly increasing circulating vitamin D levels in the blood.
The lead author on the study, Mitchell Jones, MD, PhD, received the Early Career Investigator Poster Presentation Prize from the New York Academy of Sciences and the Sackler Institute for Nutrition Science at last week’s Probiotics, Prebiotics, and the Host Microbiome: The Science of Translation conference in New York City(1).
The study(2) , a post-hoc analysis of a published randomized controlled trial, examined the effect ofLactobacillus reuteri NCIMB 30242 on fat-soluble vitamins. It showed that L. reuteri NCIMB 30242 increased circulating 25-hydroxyvitamin D levels by 25.5 percent in hypercholesterolemic adults over the nine-week intervention.
According to the National Institutes of Health, serum concentration of 25-hydroxyvitamin D is the best indicator of vitamin D status, and is important for adequate bone and overall health in healthy individuals(3). More than 40 million adults in the United States have ? or are at risk of ? developing osteoporosis, a disease most often associated with inadequate calcium intake. Insufficient vitamin D contributes to osteoporosis by reducing calcium absorption(4) . Researchers continue to study other possible health effects of vitamin D, such as protection against heart disease, autoimmune diseases, and diabetes.
The Institute of Medicine recommends 600 IUs of vitamin D daily to meet the needs of almost everyone in the United States and Canada. Most people get vitamin D through sun exposure, foods that contain it, and supplements. A variety of factors may reduce vitamin D absorption, including limited exposure to sunlight, dark skin, obesity, and problems with absorption or ability to convert vitamin D to its active form.
“This study, part of an ongoing line of research in bile metabolism and Western disease, is adding to the body of knowledge on the microbiome and its role in human health,” said Dr. Jones, lead study author and chief scientific officer, Micropharma Limited. “Although it has long been known that the gastrointestinal tract plays an active role in the absorption of vitamin D, these findings showing improved vitamin D status in response to an orally delivered probiotic are a first, and will inform the development of new products that may be beneficial for people with low vitamin D levels.”
Previous studies have shown the effect of L. reuteri NCIMB 30242 on cholesterol reduction, but its effect on the absorption of fat-soluble vitamins was unknown.
“The vitamin D market has grown by 20 percent a year over the last 10 years, and within this timeframe, U.S. medical costs around osteoporosis and fractures in an aging population were already estimated at $22 billion(5),” said Ryan Jones, Micropharma’s chief executive officer. “As a pioneer in research and innovation on products that work naturally through the microbiome to impact health outcomes, we are very encouraged about the potential for these vitamin D findings for public health.”
Deficient vitamin D levels result in early aging of bone
In an article published online on July 10, 2013 in the journal Science Translational Medicine, researchers from University Medical Center in Hamburg, Germany and Lawrence Berkeley National Laboratory report a link between deficient levels of vitamin D and premature aging of the bone. The vitamin is needed for the absorption of calcium by bony tissue, as well as playing a role in many other processes.
Björn Busse and his associates compared bone obtained from 15 normal individuals and 15 men and women with deficient serum 25-hydroxyvitamin D3 levels of less than 20 ng/mL and bone surface osteoidosis indicating the transition to osteomalacia. "The hallmark of osteomalacia is an excessive amount of unmineralized collagen matrix," Dr Busse and his colleagues explain. "The cause of this pathological accumulation of osteoid is difficult to determine and may result from a combination of an increased rate of bone formation, low serum calcium and phosphorus, and/or direct effects of the excess osteoid on osseous cells accompanied by changes in the bone matrix, either in the collagen or in the ground substance. As a consequence of the marked reduction in mineralized bone mass and increased amounts of osteoid, vitamin D–deficient bone represents a complex composite structure that is highly susceptible to fracture."
Bone quality was analyzed on a scale ranging from nanometers to micrometers via the use of micro computed tomography. The researchers found that the increase in osteoid-covered surfaces in bone derived from deficient subjects impaired the remodeling of mineralized bone tissue underneath due to isolation from osteoclasts. These areas of bone continued to age and mineralize, exhibiting the structure of older bone tissue, which is more brittle than young bone. Further testing revealed that being deficient in vitamin D increased the initiation of cracks by 31% and their growth by 22%.
"The assumption has been that the main problem with vitamin D deficiency is reduced mineralization for the creation of new bone mass, but we've shown that low levels of vitamin D also induces premature aging of existing bone," stated coauthor Robert Ritchie of Lawrence Berkeley Laboratory's Materials Sciences Division.
"Our study expands the current clinical understanding of the pathophysiology of vitamin D deficiency and helps explain why well-balanced vitamin D levels are essential to maintain bone's structural integrity," the authors conclude.
Just a thought from the other side . . . This year's result from my recent physical is that my Vit D level is up to 94. My primary care doctor has advised that I stop taking a supplement. I had been taking a Caltrate 600 + D and a 2000IU Vit D3 supplement every day. I guess this is a reminder to keep monitoring your level, as too much can be toxic. I've read some sources that say over 100 is toxic, but others that say over 75 for a woman is too much. I see my oncologist next month and will discuss this with him. I'm quitting for now and wondering if I have done some damage . . .
You bring up a good point about monitoring your vitamin D levels. Two people can take the same supplement everyday and have very different outcomes. 1000 IU daily for some is too much and 5000IU daily for others may not be enough. It is important to find the right balance and have this checked. I am due to have mine checked in Sept, and I have been taking fairly high levels on a regular basis. I'll be interested to see what my results are. Last time I was 66. My doctor said that was perfect. I hope for the same...:) Btw, I don't take the Caltrate/Vit D - only the D3. I wonder if the combo is causing your levels to be higher?
Best,
Lisa
Diagnosed Jan 2010; Stage IIa, grade 2, 3.2cm in rt. breast, no nodes and BRCA-. 4 cycles Carbo/Gemzar 3/10; Lump 6/10; 2 cycles carbo/gem after surgery 8/10; 35 Rads finished 12/1/10. NED.
Thanks, good points. I'm going cold turkey and then retesting in 2 months. I've read taking calcium supplements have not proven to be beneficial to post-menopausal bones anyway.
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