Thought people here might find it interesting. One telling quote:
Well the public health message is that vitamin B12 deficiency is way commoner than everybody thinks and in order to know if someone has B12 deficiency you can’t just measure a serum B12. In Europe they measure something called holotranscobalamin, not readily available here and probably not in Australia. So if you have somebody who has a borderline B12 level you’ve got to measure the homocysteine level to know whether they have metabolic B12 deficiency.That might help explain why so many of us feel rotten despite showing normal B12 levels on our blood tests...
Radio show & transcript of interview I'm not good at science, so if anyone wants to discuss it more or tell me I've misinterpreted things, that's ok. (just do it nicely, without arguing, please)
Ivy.