Is the Cyanide in Vitamin B12 of Concern?
Q Natural News has an alert in regard to cyanocobalamin. It states that it is bound to a cyanide molecule. I have been taking Personal Radical Shield for years and it contains cyanocobalamin. What’s your take on this?
ALAN, Plymouth Meeting, PA
A Durk Pearson & Sandy Shaw, the formulators of Personal Radical Shield (PRS) have been ardent, intensive, and thorough researchers of the biomedical literature for nearly 45 years in their pursuit of life extension. Since PRS is the foundation for their entire program, they would surely change the forms of the ingredients if a superior form was known.
The amount of research done with cyanocobalamin (a form of vitamin B12) exceeds that of methylcobalamin by 40 times. While there are a few uses of methylcobalamin that are not found for cyanocobalamin, the reverse is true, and cyanocobalamin leads by a wide gap. Moreover, cyanocobalamin is converted to its active forms, first hydroxocobalamin and then methylcobalamin and adenosylcobalamin in the liver, leaving behind the cyanide, albeit in minimal concentration with no consequence to bodily functions.
Cyanocobalamin is formed from the use of activated charcoal to purify hydroxycobalamin. Activated charcoal always contains trace amounts of cyanide. This ordinarily creates no problems. The possible exception would be in rare cases of eye nerve damage, where the body is only marginally able to use cyanocobalamin due to high cyanide levels in the blood, resulting from cigarette smoking. It is far better to stop smoking, than switch to another B12, for the optic symptoms to abate.