Physical Signs of Serious Deficiency One indication that there may not be enough B12 present in the body is if one begins to feel fatigue and dizziness, especially when dieting
However, companies such as the Brisbane-based Peptides Direct sell it online with a doctor's prescription, although the company did not return Fairfax Media's calls
This may indicate inadequate treatment intensity or an alternative neurological condition
Specific figures circulating on commercial sites could not be verified in peer-reviewed literature and directly conflict with the published consensus that no human trials have been conducted treat them as unverified
But this does not mean that all the B12 contained in the tablet will be absorbed, as it also depends on how much intrinsic factor is available for its absorption
Most texts, however, use the term inositol to describe its most common variant, myo-inositol