Read user comments about the side effects, benefits, and effectiveness of VITAMIN K.
«VITAMIN K Information

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Reviewer: Dennis, 65-74 on Treatment for 1 to less than 2 years (Consumer)
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This article is very poorly written, misleading, and out of date. This article seriously needs a complete rewrite. It conflates K1 with K2. While the two are chemically similar, their physiological functions are very different. It should be noted that 'K' equates only to 'K1' and not to 'K2'. K2 functions in the activation process of proteins which contain glutamate residue
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Reviewer: Salutary Effects, 55-64 on Treatment for 1 to 6 months (Consumer)
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My Dr. had recommended 1000 daily D3. After a month's interval, I had a strong urgency to go to the bathroom. This is not presumed to be entirely normal, so I assumed that this was for me a normal metabolic outcome. I then tried vitamin K2 in supplement form, which I found to lower the heart rate and blood pressure. But after a time, about 6 weeks, just 100mcg a day caused restless muscul
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Reviewer: alogan458, 55-64 Female on Treatment for 1 to 6 months (Consumer)
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I have been taking K2 (as Menaquinone-7) (MK-7)(from Natto, fermented soy.) Vitamin K ,not K2, makes proteins for blood clotting, and is found in green leafy vegetables. K2 when combined with D3 increases bone formation and bone density. K and K2 are not the same.
After many years of frustration with conventional medicine, I started researching my symptoms on line,( skin pain, joint pain, neuro
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Reviewer: JazzCool, 55-64 Female on Treatment for 2 to less than 5 years (Consumer)
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The article states that only K1 is available in the U.S. This is not true. I have bought K2 for many years. Either that part of the article is years out of date or the writer did very poor research into what is available in the U.S. That poor a quality of reporting reflects poorly on WebMD's reputation for good information.
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Reviewer: 55-64 Female on Treatment for 2 to less than 5 years (Consumer)
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this article is missing all the newest findings about vitamin K2! we have only recently lost it in our diet. it is high in cheese, fermented foods and animal organ meat. it makes calcium go to teeth and bones. my teeth are the best they have ever been and i attribute this to high K2, D and Mg consumption; they all work together to make for proper calcium metabolism.
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