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Thread: Why Do Vitamin B12 Supplements Contain Cyanide?

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    Administrator Islander's Avatar
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    Default Why Do Vitamin B12 Supplements Contain Cyanide?

    Sayer Ji, Founder
    December 12th 2018

    What is cyanide doing in the vast majority of vitamin B12 supplements? And are there any risks associated with its use?

    It's all too common to assume that mass market vitamin manufacturers have your best interests at heart. Walking the aisles of pharmacy chains like Walgreens or CVS, you'll notice hundreds if not thousands of ostensibly "natural products" in this category, and you may not think twice about what's actually in these pleasantly dressed bottles. But a quick peek down the rabbit hole of this subject will reveal that there is a distinctively dark side to the industry, especially supplement companies owned by the world's largest pharmaceutical giants like Bayer.

    Read more: http://www.greenmedinfo.com/blog/99-...eid=097055ab13
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    Veteran Member Mr. Wizard's Avatar
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    Default Re: Why Do Vitamin B12 Supplements Contain Cyanide?

    Very informative. Vitamin B12 supplements can be very confusing. The cyanide type, or "cyano-cobalamin", or cyano B12 is synthetic. The body must convert cyano B12 into natural forms, known as methylcobalamin or methyl B12 and/or adenosylcobalamin or adenosyl B12. The conversion process take up to 48 hrs. and can be very ineffective, especially for elderly people and those with gastric, liver, or renal issues. As the author states, supplementing with cyano B12 is highly controversial and there's no general agreement on whether it is better than other types. It is the most common form because it is cheap and stable. So, do your homework before deciding which type of B12 is best for you. Personally, I generally prefer natural forms over synthetics. However, the synthetic "cyano B12" has worked well for some people who don't have gastric, liver, or renal problems.

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    Default Re: Why Do Vitamin B12 Supplements Contain Cyanide?

    I first heard about methylcobalamin and the other cobalamins right here on HH years ago, and have been using methylcobalamin ever since.
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    Veteran Member Mr. Wizard's Avatar
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    Default Re: Why Do Vitamin B12 Supplements Contain Cyanide?

    Methylcobalamin is one of two "active" forms of B12. The other active form is adenosylcobalamin, or adenosyl 12. Methyl is found mainly in blood plasma and body fluids, like cerebral spinal fluid. Adenosyl is found mainly in the mitochondria--the energy powerhouse of each cell. Most of our B12 reserves are stored in the liver as adenosyl, and then converted to methyl, as needed. In the ideal world, both forms inter-convert in the body. However, this conversion process becomes less efficient with age, and some people with a rare condition cannot inter-convert the two forms. Fortunately, there are supplements that combine both active forms. Unfortunately, most B-complex supplements contain only the one active form--methyl B12.

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