Just wondering Korn, most of the stuff I have read through that mentions Vit B12 causing cancer (like the stomach one for meat eaters etc) is known though just for meat eaters in general and I believe (and research has mentioned before) that it is due to lack of fiber, as most meat eaters generally don't get close to the daily recommended dose, so the meat sits there for a LOT longer than intended undigested in your stomach and bowels.
Also cancer alone has been shown (depending on what types) to be caused by all sorts of different things, maybe you are attributing Vit B12 to it but I believe (and it shows in some of the things you pasted) other things have to do with it, like the studies with high cholesterol AND high B12, high cholesterol causes a LOT if not all sorts of problems by itself, it might (more research would be needed) hinder Vit B12 from being used and store it up, just like some people have a problem getting rid of Iron? Cholesterol could cause this or just a person has some sort of autoimmune defect causing this, too many factors (which I know you are trying to separate it seems) but instead of posting so many negatives , include some positives (like below) and also keep the ones JUST studying B12 instead of ones combining B12 with other issues cause then there is NO way to tell if it is the B12 or the other conditions that cause the problems. (My bet is the other conditions cause there has been studies showing no toxicity at high doses of B12 and actually GOOD things like below)
Also I read through and didn't see any positive things with Vit b12 like this one :
Pasted from and M.D.:
Indeed, a study published in 2008 suggested that seniors with the highest levels of vitamin B12 were six times less likely to exhibit brain atrophy than those in the study whose B12 levels were lower. Research has linked brain atrophy with Alzheimer's disease and other forms of cognitive impairment.
Vitamin B12 is found in meat, poultry, fish, eggs and dairy products. However, the older you are, the less well you absorb it from foods (because decreased stomach acid, common in those over the age of 50, hinders separation of B12 from protein in meat and other animal products).
The fatigue and lack of motivation you describe can't be attributed to the amount of B12 you've been taking. This vitamin is not toxic, so you don't have to worry that too much could be harmful. In fact, fatigue (as well as memory loss, balance problems, constipation and depression) are more likely to be symptoms of a B12 deficiency than of getting too much of it.
I suggest that you get a thorough medical checkup to find out what is causing your symptoms.
I recommend that everyone over age 50 (and vegans of any age) take a daily B-50 B-complex supplement that contains B12 along with other B vitamins. Incidentally, I don't routinely recommend B12 shots as occasional tonics or pick-me-ups. People who get these shots often report immediate feelings of warmth, energy and a general glow of health. The effects tend to be short-lived and are most prominent with the first injections, suggestive of a placebo response.
Andrew Weil, M.D.
PS I also wanted to say to the other poster who said Vegans hardly ever get sick, I know a vegan (my fiancee's cousin actually) she always says the same thing yet she is sick more than myself and my fiancee, (we go to the gym regularly and I'm a nutritionist / Personal trainer so kind of know how to look after myself at least and TRY to pass on some knowledge for those who listen) and a few others I've met seem to think this way also.
Now I'm not against Vegans at all since I've actually explored this path before and was thinking about it (still currently am) as I think we eat WAY to much meat and the way some people treat animals etc (but I help by buying mostly organic, only time I don't is if its not available) but if you have ever seen Scott Pilgrim vs. the World (the movie) that Vegan in that movie, that is EXACTLY what image most Vegans have given me I have met, (if you haven't watched it it basically is a bloke that thinks he is above everyone else solely because he is vegan and has superpowers due to it, just to make his image that much worse lol)
Anyways the above was only just stating where I was coming from so you don't think (this meat eater just wants to say his opinion) so back on topic, I'm really interested to hear what you have to say Korn cause this site was actually the first that I found that stated the negatives (and pretty much only that) of to much or to little Vit B12.
(Btw I'm not trying to start anything or mean anything in a negative way or put anyone down, sorry if it came across like that, just looking for a civil discussion)
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