Curious whether that so-called “normal” vitamin B12 result on your blood test is really enough to keep your brainpower, as you age? Ah, it seems the answer might surprise you and perhaps hold the key ...

If your B12 levels are low or high, you won’t know the next steps to take. If you have questions about your B12 levels, talk to your doctor. What is the cost of a vitamin B12 test?

Both low and high vitamin B12 levels, even within the normal range, may impact cognitive function, slowing brain processing and increasing neuro-degeneration risks.

“Previous studies that defined healthy amounts of B12 may have missed subtle functional manifestations of high or low levels that can affect people without causing overt symptoms,” said senior ...

This association was strongest when there were low levels of active B12 and high levels of holo-HC, or ‘inactive B12’. Segil suggested that further research was needed to verify why the study ...

High levels of vitamin B12 in a person's blood are associated with an increased risk of early death, according to research published last month in the journal JAMA Network Open.

This association was strongest when there were low levels of active B12 and high levels of holo-HC, or ‘inactive B12’. Segil suggested that further research was needed to verify why the study ...

Remember, if your levels are too high, that can actually be from your digestive system not absorbing it well. Many clients I see have extremely high B12 levels, even without supplementation.