Bests & Worsts Reviews from Amazon

The most commonly available form of vitamin B-12 on the market is the cheap synthetic form that's actually bound to a cyanide molecule (yes, cyanide, the poison). It's called cyanocobalamin, and you'll find it in all the cheap vitamins made by pharmaceutical companies and sold at grocery stores and big box stores. Action item: If you have any vitamin B-12 supplements, check the ingredients label right now to see what form of vitamin B-12 they contain. If they contain cyanocobalamin, throw them out! Cyanocobalamin is a cheap, synthetic chemical made in a laboratory. It's virtually impossible for you to find this form in nature. Low-end vitamin manufacturers use it because it can be bought in bulk and added to products with claims that they "contain vitamin B-12!" What they don't tell you is that the vitamin is bound to a toxic, poisonous cyanide molecule that must then be removed from your body by your liver. Cyanocobalamin is also up to 100 times cheaper than the higher quality methylcobalamin Cyanocobalamin, in summary, is a low-grade, low-quality and slightly toxic (cyanide) form of vitamin B-12 that's used by all the cheap vitamin manufacturers. I recommend avoiding it completely. It won't kill you to take it, of course, but there's a better solution for B-12. The better choice: Methylcobalamin The proper form of vitamin B-12 to supplement is called methylcobalamin. This is the form that exists in nature, and it is pre-methylated, meaning it's ready for your biochemistry to put to immediate use. Methylcobalamin has several key advantages over cyanocobalamin: * Increased absorption * Better retention in tissues * Contains no toxic cyanide * Supports production of SAMe