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Once you have confirmed tolerance at the beginner dose, you can safely titrate up to the standard range
It is therefore possible to be B12 deficient despite having high B12 blood levels for example, if the vitamin cannot correctly bind to transport molecules (6)
Any neurological symptoms: Mind : brain fog, poor memory, poor concentration, word finding difficulties, dementia, parkinsonism, insomnia
Take breaks every 20-30 minutes for stretching and position changes
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