I was recently tested for vitamin B6 levels, because I was worried I was deficient.
Turns out I am way too high (over 100 because the scale my lab uses only goes that high. Reference range 2.0-32.8 mcg/L.
Turns out excess B6 is toxic to the nervous system. Peripheral neuropathy, lack of balance, trouble walking. Sound familiar?http://en.wikipedia.org/wiki/Vitamin_B6_excess
I recently corresponded with a woman who had high B6 levels after supplementing with a B complex vitamin. She said the blood levels come down in a few weeks once you stop supplementing, then it has to come out of the tissues (and will with exercise) and then the nerve damage has to repair. Here is a thread she posted onhttp://www.medhelp.org/posts/Neurology/ ... show/13007