I am a vegetarian verging towards vegan and b12 deficient diagnosed over three years ago.
I have been reading on an American site ‘bebrainfit.com’ which raised a number of issues which concernedme.
Firstly it advised against using b12 based on cynocobalamin (sic) as it was synthetic and difficult to absorb as well as introducing cyanide to ones system. Instead it suggested b12 created with methylcobalamin or adenosucobalamin.
I would be interested to know if this is true and, if so, sources of b12 from the suggested alternatives. I am using b12 tablets bought from Holland & Barrett who, as far as I can see, do not offer and alternative source.
The site also claimed that fermented soys bean products should avoided as the b12 with in them actually makes the absorption of b12 more difficult. This is of obvious concern to any vegetarian/vegan as tofu in its many forms is an important part of ones diet both as a meat alternative and a source of b12.
Again educated opinions would be welcomed.