I have recently discovered that my sister has to have b12 injections every 3 months as she doesn't absorb, she eats meat and dairy. My grandfather (mother's father) had dementia in later years, my mother now has vascular dementia but has normal b12 levels according to blood test but i'm unsure as of yet whether she's been tested for MMA or homocysteine.
I myself have been diagnosed as having low platelets (60 normal being 150-400, was 133 about 4 years ago) and low iron levels for which I have been referred to a haemotologist appointment this Monday coming. My b12 levels were 234 (been vegan for just 3 months) in a blood test recently but as of yet I haven't been MMA or homocysteine tested.
If the haemotologist discovers i too am lacking the intrinsic factor, how much might this indicate a reason for dementia in my mother and her father?
Dementia can be a symptom of a lot of things, B12 deficiency among them. Others have seen success with lfrv and dementia, as well as iodine supplementation for dementia as Dr. Brownstein and other M.D.s advocate.
Here is a nice discussion on B12: http://www.30bananasaday.com/forum/topics/b12-source?id=2684079%3AT...