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Vitamin K2 and the Calcium Paradox: How a Little-Known Vitamin Could Save Your Life (Anglais) Broché – 27 août 2013

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Description du produit

Présentation de l'éditeur

The secret to avoiding calcium-related osteoporosis and atherosclerosis While millions of people take calcium and Vitamin D supplements thinking they're helping their bones, the truth is, without the addition of Vitamin K2, such a health regimen could prove dangerous. Without Vitamin K2, the body cannot direct calcium to the bones where it's needed; instead, the calcium resides in soft tissue (like the arteries)--leading to a combination of osteoporosis and atherosclerosis, or the dreaded "calcium paradox." This is the first book to reveal how universal a Vitamin K2 deficiency is, and the risk (in the form of cancer and diabetes, among other ailments) the absence of Vitamin K2 poses. Written by Dr. Kate Rheaume-Bleue, a popular health expert on Canadian television and radio, Vitamin K2 and the Calcium Paradox sounds a warning about the popularity of the calcium and Vitamin D craze, while illustrating the enormous health benefits of Vitamin K2 in making the body less susceptible to dental cavities, heart disease, prostate cancer, liver cancer, diabetes, wrinkles, obesity, varicose veins, and other ailments. The book demystifies this obscure supernutrient--a fat soluble vitamin that humans once thrived on, ignored by scientists for almost seventy years Details how the consumption of grass-fed animals led to adequate Vitamin K2 intake--while grain-based animal feed helped eradicate Vitamin K2 from our diets Describes how doctors are raising recommended doses of calcium and Vitamin D--without prescribing Vitamin K2 Details more damning facts about transfats--and how the creation of a synthetic Vitamin K interfered with the body's Vitamin K metabolism An essential book for anyone interested in bone health, or maintaining their overall health, Vitamin K2 and the Calcium Paradox is the guide to taking the right combination of supplements--and adding Vitamin K2 to a daily regimen.

Quatrième de couverture

Are you taking calcium or vitamin D? This book could save your life! Learn the secret to avoiding osteoporosis and heart disease. Millions of people take vitamin D and calcium supplements for bone health. New research shows that this actually increases the risk of heart attack and stroke because the added calcium builds up in arteries—the calcium paradox. The secret to keeping bones strong and arteries clear is vitamin K2, a little–known supernutrient that humans once thrived on and that has been ignored by scientists for almost 70 years. Inside this book, you′ll find: How consumption of grass–fed animals traditionally provided us with ample quantities of vitamin K2—while grain–based animal feed contributed to the eradication of vitamin K2 in our modern diet How K2 is the most important anti–aging nutrient for fighting wrinkles, Alzheimer′s, heart disease, osteoporosis and more The health benefits K2 promotes for straight, cavity–free teeth and strong bones in children Which delicious "sinful" foods are brimming with heart–healthy K2 Ways you can safely get the most benefit from your calcium and vitamin D supplements Also available as an e–book through online retailers. --Ce texte fait référence à l'édition Broché .

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Format: Broché Achat vérifié
This book is definitely a must have for every fitness and health freak out there. It is full with interesting and backed up science. I never wanted to stop reading this book. Extremely informative and nicely written.
It can definitely save your life and make you smile!
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Format: Format Kindle Achat vérifié
A lire absolument dans le cadre d'une supplementation vitamine d + calcium sous peine de tout faire de travers .
Seul bémol pas un mot sur les bienfaits de l'activité physique sur le squelette . A quoi bon absorber les outils de renouvellement des os si on ne compte pas s'en servir? Je suppose que l'auteur n'a pas voulu tout melanger .
Après, l'auteur ne cherche pas à imposer un mode de vie , juste apporter des infos en précisant que la recherche est en cours .
Pour le prix ne pas se gener .
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Commentaires client les plus utiles sur Amazon.com (beta) (Peut contenir des commentaires issus du programme Early Reviewer Rewards)

Amazon.com: 4.8 étoiles sur 5 406 commentaires
771 internautes sur 796 ont trouvé ce commentaire utile 
5.0 étoiles sur 5 CAUTION: misleading bias on supplements 14 août 2012
Par Michael A. George - Publié sur Amazon.com
Format: Broché
I want to emphasize that this book is fantastic -- for the most part. Everyone needs to know about vitamin K2. This book is eye opening for many, many reasons. Please get it and read it.

However, if you go beyond food souces, her advice on supplement choices seems to gloss over, and perhaps even mislead, with some of the facts in regard to her recommendation for the MK-7 version of vitamin K2 instead of the MK-4 version.

Her main criticism of MK-4 is the that it is `synthetic.' That `synthetic' word is a red flag for many, myself included. However, all the supplements are made in a factory/laboratory. The MK-4 is still made with natural occurring ingredients, just like the MK-7.

But even more important, which one is really going to work for you!

My personal experience:
I have yet to hear from anyone that the MK-7 supplements will dissolve the calcified plaque that forms behind the lower front teeth. In 2 days, the Thorne MK-4 supplement completely removed the krud behind my teeth. I was amazed by this. Ever since, I don't need a teeth cleaning at the dentist. I had been taking the Jarrow MK-7 for more than a year without this dramatic effect.

This proves to me that this supplement is taking calcium away from someplace it's not supposed to be and, hopefully, putting it someplace that it IS supposed to be. Which is the major idea presented in this book.

I switched to the MK-4 as an experiment after reading Richard Nikolay's post on Free the Animal blog where he was surprised to notice this same teeth cleaning effect. And I had read about it along time ago in the Track Your Plaque blog of Dr. William Davis.

Why does this author emphasize that MK-7 is better than MK-4?

Please read the studies directly. The abstract googles up easily.
The frequently referenced study that concluded "A high intake of menoquinones, especially MK-7, 8 and 9 . . . could protect against CHD " was a study with data that was "estimated with a food frequency questionnaire." As if it were easy and/or accurate to isolate the effects of either MK-4 versus MK-7 from foods which often contain both.

Is it true that the Rotterdam study mentions that MK-7 seems to be better at preventing/reducing arterial calcification than MK-4? In fact, the Rotterdam study didn't indicate which of the menaquinones was responsible for the association, although supplement manufacturers tried to twist the interpretation into supporting their product after the fact. All the Rotterdam study showed was that a higher K2 intake (all forms) was associated with a lower CHD risk and arterial calcification.

What about the 'half-life' argument?
The reason MK-7 has a longer half-life in the blood is because it has a longer side-chain, is thus more fat-soluble, and thus is located more in the core of the lipoproteins that carry it in the blood then the surface, thus having less interaction with enzymes that would bring it into the cells. MK-4 is therefore more easily absorbed into cells.

But major studies are underway using MK-7?
The large studies currently in progress in Europe that the author is fond of mentioning are simply comparing the MK-7 menaquinone to Vitamin K1. They are not comparing MK-7 to MK-4. For the author to implicate that study as a factor to suggest MK-7 is better than MK-4 supplementation can be misleading.

Read more of this where I got it, without the book author's bias, at the Whole Health Source blog by Stephen Guyenet in a post, "Are the MK-4 and MK-7 Forms of Vitamin K2 Equivalent?"

A final comment from the above blog post by Chris Masterjohn, who is cited within this book for his article titled, "On the Trail of the Elusive X-Factor: A Sixty-Two-Year-Old Mystery Finally Solved"(highly recommended) which you can search for and read directly on the Weston A Price Foundation website:

"I think it makes more sense to go for MK-4 given the choice between the two . . . . The plasma half-life reason is utterly absurd, considering the reduction in plasma half-life is due to the MK-4 being delivered to the tissues where it carries out its functions! It's also much easier to get MK-7 from the diet in amounts comparable to the supplements, since fermented foods can be quite high in it and the supplements are quite low in it.

"MK-4 is cheaper than MK-7! All of the MK-7 being sold comes in much lower doses. I think Thorne is the most cost-effective source of MK-4, especially with my suspicion that it has much higher bioavailability than solid capsules loaded with binders and fillers"

This may confuse you a little at first. The science hasn't answered all our questions yet. Until then, some of what this book has avoided telling you may help you make better decisions in your choice of K2 supplements.

That said, my criticism is a little nit-picky thing. Beyond that, this book is loaded with enlightening material that you will want to share with everyone you know. I really hope you will read it.
47 internautes sur 49 ont trouvé ce commentaire utile 
4.0 étoiles sur 5 Great introduction but author's perspective is limited. 4 septembre 2016
Par garzascreek - Publié sur Amazon.com
Format: Broché Achat vérifié
Kate Rheaume-Bleue is an excellent writer. I wrote a comment on her interview on Youtube that I will just paste here since I would be covering the same issues anyway. Some of the reviews here have already pointed out some of the limitations of the book and the fast moving nature of the knowledge surrounding K2 which make a static book sort of a futile effort. But it is a good start, especially if you have no background with K2.
-----------------------------------------------------------------------------------

It is the best of the current crop of books popularizing K2. The only problem with her work is that she is Canadian so has limited experience with MK-4 in her practice (due to nanny-state potency restrictions there). It is absolutely not correct that MK-4 and MK-7 have the same effect and that dosage is the only difference. Pretty much all independent researchers acknowledge that if you could only take one, MK-4 is superior in most respects.

The primary people who advocate MK-7 exclusively over MK-4 are the Dutch researchers on the payroll, directly or indirectly via sponsored research, of the big MK-7 producers and then the main benefit they point out is the longer half-life (not really a benefit if you know what serum half-life means). Even the Japanese prefer MK-4 for high-dose therapeutic uses. All you have to do is go to PubMed and start reading some of the abstracts or do a web search on mk4 vs mk7 to get a broader and more informed perspective.

The MK-7 manufacturer sponsored research seems always careful to not directly compare with MK-4 (no non-inferiority trials). If they did we would discover that MK-7 is not found in the brain or the saliva, MK-4 is and it is neuroprotective. MK-7 does not cross the placenta and is not at significant amounts in breast milk. MK-4 is carried by HDL (which accounts for its more rapid clearing), whereas MK-7 is carried by VLDL (which causes it to linger in the blood instead of being picked up by the tissues). MK-4 is the body's preferred form from the time of the origin of the human species. Natto with MK-7 has only been a significant part of anyone's diet for maybe a millennium. If it needs to, the human body will transform available K1 into MK-4 (granted, not very effectively) not MK-7.

You wouldn't guess it by the way it is marketed, but even the fermented derived form of MK-7 is about as far from natto as you can get. One of the leading manufacturers, NattoPharma, doesn't even use the same bacteria as is used in natto (bacillus subtilis natto) and they claim there is zero soy in their product. They don't tell you what the medium is but Dr. Mercola on his site says it is chickpeas and you can look up on Wikipedia the bacillus licheniformis they use for a culture bacteria. I suppose it does not really matter the source as long as the end product provides the stated potency.

Even more interesting is the fact that their newest product is actually synthetic MK-7 which is much cheaper to produce. Nothing wrong with that. It is a purer product than their naturally derived one. They even named it MenaQ7 PURE. Both of their products strip out the naturally occurring cis-isomer form of MK-7. Nothing wrong with that, either. The isolated trans-isomer form is what is wanted anyway.

The point to take away is that people get a warm fuzzy when they see the word natural associated with MK-7. Commercial naturally derived MK-7 (specifically MenaQ7) is far removed from nature and has nothing to do with natto. The company even says their synthetic version is bio-equivalent and nature-identical to their fermented version (i.e., you can't tell the difference). Soon, if not already, most all MK-7 on the market will be synthetic because it is purer and cheaper to make. [...] (I suspect Amazon will zap this link so I will also put it in the comments.)

Even the lovely Kate couldn't resist the financial lure of becoming a paid spokesperson for an MK-7 marketer (the vitamin company she works for). That only slightly detracts from her excellent book and she would have had to become a smuggler to become personally familiar with MK-4 in her practice anyway. But as always, when it comes to the validity of advice, always follow the money. There are good things to be said for MK-7 (I take it myself) but it is disingenuous to suggest it is somehow superior overall on its own to MK-4. The evidence does not support that view. They both have related and differing effects. It probably does make sense to take both.

The real problem is that well-heeled marketing and patent collection oriented companies that manufacture MK-7 use research funds as a means of marketing their specific products via carefully structured and relentless research programs. The end user requires much diligence to wade through it all and discern actual value. And as always, follow the money...
150 internautes sur 159 ont trouvé ce commentaire utile 
5.0 étoiles sur 5 Perhaps the most important health book you'll read 15 février 2013
Par Suzanne M. Borho - Publié sur Amazon.com
Format: Broché Achat vérifié
After being diagnosed with severe osteoporosis at the tender age of 32, I started popping all forms of supplements and supplement formulas with Ca, Mg, Zn, Boron, Vitamin D galore, special clays, herbal formulas--supposedly the best of the best, spending THOUSANDS of dollars on supplements over the past 7 years, and my last bone scan showed ZERO improvement, and in fact that they were even a bit WORSE! After hearing a radio interview with the author, Dr. Kate Reaume-Bleue, I decided to buy her book and it is probably the best investment I've made in all of the past 7 years! THIS is what I am lacking! Without Vitamin K2, you CAN'T build new bone. It's physiologically and biochemically impossible, and Dr. Kate explains why in very easy-to-understand language, yet gives you the science and biochemistry to back it all up. She also goes into the OTHER fat-soluble vitamins (A,D, and E) and why THEY are essential co-factors as well! The book is just packed with incredible, life-saving information for not only people suffering from osteoporosis, but heart disease, arthritis, diabetes, kidney stones, and a whole lot more! Because of the decimation of our food supply by big Agra and factory farming, we no longer get the K2 in our diet, and it is probably the most important nutrient that no one is talking about! PLEASE! Read this book, and then pass it on!
31 internautes sur 33 ont trouvé ce commentaire utile 
5.0 étoiles sur 5 I am so glad to have found this book 29 août 2014
Par jjlaurenrn - Publié sur Amazon.com
Format: Format Kindle Achat vérifié
I am so glad to have found this book. It is well-written and conveys a very important message - that Vitamin K2 is the missing link that is resulting in untold heath damage and death in the 20th and 21st centuries. Don't buy that lie that it is cholesterol that is the guilty party in heart disease. Don't buy the lie that one must take statins to counter the cholesterol or believe that cholesterol is some evil-doer. Don't buy the lie that osteoporosis is just a natural battle in the spectrum of aging. Don't buy the lie that vitamins A and D are toxic - all they need is vitamin K2 (activator X) to work properly and good health can be yours. As an RN, I know that most doctors do not know this information as it was never part of the medical school curriculum, so you can't depend on them to help you or tell you.
It is your life and ultimately you are responsible for it, so take charge of your health and make this book required reading.
16 internautes sur 18 ont trouvé ce commentaire utile 
5.0 étoiles sur 5 Could be the most significant health book you will read. 17 décembre 2016
Par mark burhenne dds - Publié sur Amazon.com
Format: Broché Achat vérifié
This is one of the most influential heath care books I have read in the last 10 years. I am a healthcare practitioner (dentist) and healthcare blogger and read several heath books a month. I have written a healthcare book as well. I recommend this book daily to my patients and friends and family. If you are an expectant mother, the information is even more vital as it may determine the future health of your child. The information in this book is also imperative for the older set (like me). Knowledge about Vit K2 and how to get it is crucial to good health. This book is the best starting point to dive in on the subject, and is also the best resource currently for knowing all there is to know about VitK2. It's a bit technical at times for the lay reader but is written in such a way that if you skip those parts, the main message is still attained, along with all of its action items. Read it and you will live longer and better. BTW, taking VitK2 does help prevent calculus buildup on your teeth, but will not remove calculus from your teeth like some reviewers claim. But still, what a fantastic thing that is. My patients that take VitK2 have significantly less calculus at their 6mo visits. However, VitK2 is way more that! Read the book. I've read it at least 3 times. Lastly, I'd like to thank the author for taking the time to write this important book.
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